JPS58154850A - Recording member - Google Patents

Recording member

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Publication number
JPS58154850A
JPS58154850A JP2479483A JP2479483A JPS58154850A JP S58154850 A JPS58154850 A JP S58154850A JP 2479483 A JP2479483 A JP 2479483A JP 2479483 A JP2479483 A JP 2479483A JP S58154850 A JPS58154850 A JP S58154850A
Authority
JP
Japan
Prior art keywords
layer
type
amorphous
contg
thickness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2479483A
Other languages
Japanese (ja)
Other versions
JPS6248217B2 (en
Inventor
Junichi Umeda
梅田 淳一
Juichi Shimada
嶋田 寿一
Yoshifumi Katayama
片山 良史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2479483A priority Critical patent/JPS58154850A/en
Publication of JPS58154850A publication Critical patent/JPS58154850A/en
Publication of JPS6248217B2 publication Critical patent/JPS6248217B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/08Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
    • G03G5/082Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and not being incorporated in a bonding material, e.g. vacuum deposited
    • G03G5/08214Silicon-based
    • G03G5/08235Silicon-based comprising three or four silicon-based layers

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

PURPOSE:To obtain an electrophotographic photoconductive film having photosensitivity to light up to 770nm long wavelengths and superior abrasion resistance, by laminating amorphous silicon-carbon-germanium (a-Si-C-Ge) contg. a large amt. of hydrogen. CONSTITUTION:An N type amorphous Si1-s-tCsGet layer 3 contg. 3-50atom% H where 0.3>s>=0, 1>t>=0; an amorphous P type or N type Si1-u-vCuGv layer 2 contg. 5-30atom% H, where 0.3>u>=0, 1>v>=0; and an amorphous Si1-x-yCxGey layer 1 contg. 5-30atom% H, where 0.3>x>=0, 1>y>=0, are laminated on a substrate electrode 4 made of metal or semiconductor to form a recording member having 3-layer structure photoconductive film. In addition, the layer 1 and the layer 3 may be of P type and N type, respectively.

Description

【発明の詳細な説明】 本発明はレーザ・プリンタや電子写真装置において電荷
潜像形成、現像、転写を行なうために使・用する光導電
膜に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photoconductive film used for forming, developing, and transferring latent charge images in laser printers and electrophotographic devices.

レーザ・プリンタや電子写真装置において、電荷潜像形
成、現像、転写を行なうために使用する記録用部品は金
属、半導体等からなる基体電極の表面に光導電膜を被着
させたものである。従来、この光4電膜用材料として、
有機系材料ではPVK−T N I”やビラリゾンーン
アニン色素系、銅フタロ7アニノ系などが、無機系材料
では非晶質セレン系、多結晶硫化カドミウム系などが用
いられている。
In laser printers and electrophotographic devices, recording parts used for forming, developing, and transferring latent charge images are made by coating a photoconductive film on the surface of a base electrode made of metal, semiconductor, or the like. Conventionally, as materials for this photovoltaic film,
Organic materials such as PVK-T N I'', bilarizonanine dyes, and copper phthalo-7 anino are used, and inorganic materials include amorphous selenium and polycrystalline cadmium sulfide.

しかし、有機系材料は一般に耐摩擦性に劣ると共に光感
度が低く、とくに波長が6500m以上の光に対しては
急激に感度が低下する。また、無機材料におい゛ても、
非晶質セレン系材料では波長550旧n以上、多結晶硫
化カドミウム材料でも波長7000m以上で急激に感度
が低下するほか、最近の高速化された機器においては耐
摩擦性が問題となっている。
However, organic materials generally have poor abrasion resistance and low photosensitivity, and in particular, the sensitivity rapidly decreases to light with a wavelength of 6500 m or more. Also, in inorganic materials,
Sensitivity of amorphous selenium-based materials decreases rapidly at wavelengths of 550 m or more, and sensitivity of polycrystalline cadmium sulfide materials decreases rapidly at wavelengths of 7,000 m or more, and friction resistance has become a problem in recent high-speed equipment.

一方、小型、高効率、直接高速変調可能などの特徴を有
する半導体レーザの出現により、光導電材料についても
、長波長(〜7701m ’)まで光感度を有し、かつ
耐摩擦性に優れた新しい光導電膜の出現が望まれている
On the other hand, with the advent of semiconductor lasers with features such as small size, high efficiency, and direct high-speed modulation, new photoconductive materials have been developed that have photosensitivity up to long wavelengths (~7701 m') and excellent friction resistance. The emergence of photoconductive films is desired.

本発明は、水素を多量に含有する非晶質のンリコ7−カ
ーボン−ケルマニウム(1−L 下、a −Si〜C−
Geと略記する。)系材料が (1)ドーピングおよび生成条件の制御により導電型お
よび比抵抗値を大幅に変えることができること、 (2)  a−8i −C−Ge(D組成を変えるコ、
!−ニヨリ、バンドギャップが可変であり、容易にヘテ
ロ接合が形成できること(第1図参照)、(3)強い共
有性結合をもつ、耐摩擦性の高い材料であること、 06点に着目し、この材料系を用いたヘテロ接合を有す
る膜構造を形成することにより、上記の問題点のない新
しい光導電膜を提供するものである。
The present invention is directed to amorphous carbon-7-carbon-kermanium (1-L, a-Si to C-
It is abbreviated as Ge. ) system materials: (1) conductivity type and specific resistance value can be changed significantly by controlling doping and formation conditions; (2) a-8i -C-Ge (D composition change);
! - Focusing on point 06, the bandgap is variable and heterojunctions can be easily formed (see Figure 1); (3) the material has strong covalent bonds and is highly friction resistant; By forming a film structure having a heterojunction using this material system, a new photoconductive film free from the above-mentioned problems is provided.

以下に、本発明を実施例により詳細に説明する。The present invention will be explained in detail below using examples.

実施例 1 第2図は本発明の一つの実施例の断面図であり、1はp
形のa−8i    CQc 膜(0,3>X≧0.1
−x −y  x   y 1)Y≧0、比抵抗1014Ω−cm、厚さf μm、
ボロン・トープ)、2はp形またはn形のa  S i
 1〜u−vCuGev膜(0,3>0≧0.1〉■≧
0、ただし、v ) y、比抵抗10  Ω・cm、厚
さg μm )、6はn形の;j−8i1−3.CsG
e1膜(0,3>S2O、i>t≧0、ただし、v )
 t 、比抵抗10  Ω・cm、厚さ117t+n、
□燐ドープ)、4は金属又は半導体からなる基体電極で
ある。
Embodiment 1 FIG. 2 is a cross-sectional view of one embodiment of the present invention, where 1 is p
a-8i CQc film (0,3>X≧0.1
-x -y x y 1) Y≧0, specific resistance 1014Ω-cm, thickness f μm,
boron taupe), 2 is p-type or n-type a Si
1~u-vCuGev membrane (0,3>0≧0.1>■≧
0, however, v) y, specific resistance 10 Ω·cm, thickness g μm), 6 is n-type; j-8i1-3. CsG
e1 film (0,3>S2O, i>t≧0, where v)
t, specific resistance 10 Ω・cm, thickness 117t+n,
□Phosphorus doped), 4 is a base electrode made of metal or semiconductor.

ここで、x=y=0、f=5Qpm、u=Q、v−0,
4、g=iμm% 5==t=Q、h=−9μmとし、
コロナ放電により層1の表面が負で、表面と電極4との
電位差600Vに帯電させる。これに、層1の表面から
、波長7700mの半導体レーザー光を照射すると、層
1は通過し、層2で吸収される。そして、ここに正孔・
電子対が発生するが、正孔は表面へ、電子は電極4へ電
界により引き出され、上記の帯電を中和する。電位差が
60チまで減少するに要した光照射値は光照射時間0.
1μs〜0.1秒の範囲で照射時間によらず、約1f3
mJ/cm である。
Here, x=y=0, f=5Qpm, u=Q, v-0,
4, g=iμm% 5==t=Q, h=-9μm,
The surface of the layer 1 is negatively charged by corona discharge, and the potential difference between the surface and the electrode 4 is 600 V. When this is irradiated with semiconductor laser light with a wavelength of 7700 m from the surface of layer 1, it passes through layer 1 and is absorbed by layer 2. And here is the hole
Pairs of electrons are generated, but the holes are drawn to the surface and the electrons are drawn to the electrode 4 by the electric field, thereby neutralizing the above-mentioned electrification. The light irradiation value required for the potential difference to decrease to 60 cm is the light irradiation time of 0.
Approximately 1 f3 regardless of the irradiation time in the range of 1 μs to 0.1 seconds
mJ/cm.

これは光導電キャリアの発生効率60%に相当する。This corresponds to a photoconductive carrier generation efficiency of 60%.

なお、光を照射しない時の帯電電位の減衰(暗減衰)率
は、電位が10%低下するに要する時間が11秒という
割合である。
Note that the decay (dark decay) rate of the charged potential when no light is irradiated is such that the time required for the potential to decrease by 10% is 11 seconds.

■の値は、1>V>0の間で変えることができる。■の
値を増すと、より長波長まで感光波長が伸びるか、上記
暗減衰率は増加するので、0.1〜0.8の範囲内がよ
り好ましい。
The value of (2) can be changed between 1>V>0. If the value of (2) is increased, the sensitive wavelength will be extended to a longer wavelength or the dark decay rate will increase, so it is more preferably within the range of 0.1 to 0.8.

また、Xと5の値は、0から約0.3程度まで増すこと
ができ、照射光の透過性、膜の安定性、耐摩擦性の向上
がみられる。
Further, the values of X and 5 can be increased from 0 to about 0.3, and improvements in irradiation light transmittance, film stability, and abrasion resistance can be seen.

層1の導電型をn形、層6の導電型をp形としても良い
。この場合には、層1の表面は正に帯電させて光を照射
することにより、前記と同様の特性を得ることができる
The conductivity type of layer 1 may be n-type, and the conductivity type of layer 6 may be p-type. In this case, the same characteristics as described above can be obtained by positively charging the surface of layer 1 and irradiating it with light.

層1の厚さfと層6の厚さhは、その和が電子写真VC
おけるトナーを吸引するに要する帯電電位差(約600
〜800V)に対して、光導電膜がブレークダウンしな
い厚さく約60μm以上)に選んであれは良く、各々の
層の厚さは上記の例に限定されない。
The sum of the thickness f of layer 1 and the thickness h of layer 6 is the electrophotographic VC.
The charging potential difference required to attract the toner (approximately 600
~800V), the thickness may be selected to be approximately 60 μm or more so that the photoconductive film does not break down, and the thickness of each layer is not limited to the above example.

実施例 2 第6図は、帯電電位差に対する耐圧をa−8i −C−
Oc以外の層の助けをかりて得るようにしだ本発明の変
形例である。第6図において、層15はp形弁晶質Se
層(比抵抗1014Ω・cm、厚さ50μm)、層11
はp形a−Si層(比抵抗1013Ω−cm、厚さ1μ
m )、層12はp形又はn形ノa  、S + o、
bGe o、a層(厚さiμm)、層16はn形a−8
iJii(比抵抗10  Ω−C1n、厚さ1μm)、
層16はn形弁晶質Se層(比抵抗1014Ω−cm、
厚さ1μm)、14は電極である。々お、非晶質Se層
は結晶化を防止するために、一般に少量のAs 、 T
e 、 sbなどが添加されている。この光導電膜の動
作、機能特性は第2図のものと同様である。
Example 2 Figure 6 shows the withstand voltage for charging potential difference a-8i -C-
This is a modification of the present invention in which it is obtained with the help of layers other than Oc. In FIG. 6, layer 15 is p-type crystalline Se.
layer (specific resistance 1014 Ω cm, thickness 50 μm), layer 11
is a p-type a-Si layer (specific resistance 1013Ω-cm, thickness 1μ
m ), layer 12 is p-type or n-type no a , S + o,
bGe o, a layer (thickness i μm), layer 16 is n-type a-8
iJii (specific resistance 10 Ω-C1n, thickness 1 μm),
Layer 16 is an n-type crystalline Se layer (specific resistance 1014 Ω-cm,
(thickness: 1 μm), and 14 is an electrode. In order to prevent crystallization, the amorphous Se layer generally contains a small amount of As, T.
e, sb, etc. are added. The operation and functional characteristics of this photoconductive film are similar to those shown in FIG.

実施例 6 第4図は、耐擦性向上のために、第6図と同じ構造にお
いて、層5の非晶質Se層の表面に、厚さ1μmのp形
a−8I o、 7 Co、 3の層17を形成したも
のである。
Example 6 FIG. 4 shows a layer of p-type a-8Io, 7Co, 1 μm thick, on the surface of the amorphous Se layer of layer 5 in the same structure as FIG. In this example, a layer 17 of No. 3 is formed.

第6図、第4図において、層15又は16の厚さを両者
の和と同一にすれば、いずれか一方を省いても良い。ま
だ、層15.16の両方又は一方は、ポリビニールカル
バゾール系やピラゾリン系などの有機層であっても良い
In FIGS. 6 and 4, one of the layers 15 or 16 may be omitted as long as the thickness of the layers 15 or 16 is the same as the sum of the two layers. However, both or one of layers 15, 16 may be organic layers such as polyvinyl carbazole-based or pyrazoline-based.

要するに、水素を多量(5〜60チ)に含む非晶質のS
i −C−Gc系からなる材料の異種接合層を光導電層
として含むことを特徴とする本発明による光導電膜は、
禁止帯幅及び比抵抗を大幅に制御できるため、長波長域
まで高い感度を有し、かつ暗減衰の少ない耐擦性に優れ
た電子写真用光導電膜として応用することができる。
In short, amorphous S containing a large amount of hydrogen (5 to 60%)
The photoconductive film according to the present invention is characterized in that it includes a heterojunction layer of i-C-Gc-based materials as a photoconductive layer,
Since the bandgap and specific resistance can be controlled significantly, it can be applied as a photoconductive film for electrophotography that has high sensitivity up to long wavelengths, low dark decay, and excellent abrasion resistance.

なお、本発明で使用する非晶質の(Si、(゛、(’r
e)膜は、リアクティブ・スパッタリング法、グロー放
電法などで形成することができる。例えば、リアクティ
ブ・スパッタリング法では次の様にして作製することが
できる。
Note that the amorphous (Si, (゛, ('r
e) The film can be formed by a reactive sputtering method, a glow discharge method, or the like. For example, using a reactive sputtering method, it can be manufactured as follows.

すなわち、膜を被着すべき基板(例えば、Adのトラノ
、)と、スパッタ源となるターゲット電極材料(Si、
 C,Ge )とをスパッタ装置内に対向して設置し、
I X 10  Torr以下に排気したのち、A[お
よびlI2ガスを導入して約5X10  Torrの真
空度とし、ターゲット電極に高周波電力を入力すること
により、ターゲット電極材料が雰囲気ガス中のII2を
とり込んで基板上に付着し、水素を含む・しく Si、
 C,Ge )膜が形成される。多層膜形成における各
層の厚さは、高周波電力および/またはスパッタリング
時間を調節することにより制御される。捷だ、各層の組
成比は、ターゲット電極において、Si 、 C,Ge
の占める面積の比を変えることにより任意に制御するこ
とができる。
That is, the substrate on which the film is to be deposited (for example, Ad) and the target electrode material (Si,
C, Ge ) are placed facing each other in a sputtering device,
After evacuating to below IX 10 Torr, A[ and II2 gas are introduced to create a vacuum of approximately 5X10 Torr, and by inputting high frequency power to the target electrode, the target electrode material takes in II2 in the atmospheric gas. Si adheres to the substrate and contains hydrogen.
C,Ge) film is formed. The thickness of each layer in multilayer film formation is controlled by adjusting the radio frequency power and/or sputtering time. However, the composition ratio of each layer is Si, C, Ge in the target electrode.
It can be arbitrarily controlled by changing the ratio of the area occupied by the area.

例えば、直径150mm、長さ500 mmのAI!ト
ラム表面上に、厚さ1μmのa  S I o 、9 
Co、 1、厚さ1μ口1のil −S j o、9 
Ge o 、1、厚さ60Inのa  S I o、q
 Co、1からなる多層膜を形成するには、長さ550
 mm 。
For example, an AI with a diameter of 150 mm and a length of 500 mm! On the tram surface, a 1 μm thick a S I o ,9
Co, 1, thickness 1 μ mouth 1 il - S j o, 9
Ge o, 1, thickness 60In a S I o,q
To form a multilayer film consisting of Co, 1, the length is 550 mm.
mm.

幅8Qnnnのターゲット電極において、最初に81、
”Cの面積比を7:6に選んで約4分間スパッタリング
を行ない、つきに、Sl、Geの面積比を9.4:0.
乙に選んで約4分間スパッタリングを行ない、最後に、
再びターゲット電極のSi、Cの面積比を、7:3に選
んで約4分間スパッタリングを行なうことにより得られ
る。この場合における高周波入力電力は約1Q kWで
、Ae、ト′うl、は回転させなからスパッタリングを
行なう。ドラム上に形成される膜の組成比と、ターゲッ
ト電極上の各材料の面積比が異なるのは、拐料によりス
パッタされる速度が異なるためてあり、上記の面積比は
これを考慮して設定されている。
In a target electrode with a width of 8Qnnn, first 81,
``Selecting the area ratio of C to 7:6, sputtering was performed for about 4 minutes, and at the same time, the area ratio of Sl to Ge was 9.4:0.
Sputtering was carried out for about 4 minutes with the selected one, and finally,
This can be obtained by again selecting the area ratio of Si and C of the target electrode to 7:3 and performing sputtering for about 4 minutes. In this case, the high-frequency input power is about 1Q kW, and sputtering is performed without rotating Ae and the tube. The composition ratio of the film formed on the drum and the area ratio of each material on the target electrode are different because the sputtering speed is different due to the sputtering material, and the above area ratio is set with this in mind. has been done.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は非晶質の5i−C−Qeの組成比とバシトギャ
ノプの関係を示す図、第2図〜第4図は本発明の実施例
を示す断面図である。 図において、 1− p形の非晶質SI I X y Cx Gc y
層2− p形又はn形の非晶質St 1−uv (−u
 Gev層3− n形の非晶質5a1−3I Cs G
e1層4.14・・金属又は半導体からなる基体電極1
1・・・p形の非晶質Si層 12−p形又はn形の非晶質S j o、b Ge o
、4層15・・・n形の非晶質Si層 15・・・p形非晶質Se層 16・・・n形の非晶質Se層 17・=p形の非晶質S10.7CO,3層復代理人弁
理士 中村純之助
FIG. 1 is a diagram showing the relationship between the composition ratio of amorphous 5i-C-Qe and the bashtoganop, and FIGS. 2 to 4 are cross-sectional views showing examples of the present invention. In the figure, 1- p-type amorphous SI I X y Cx Gc y
Layer 2 - p-type or n-type amorphous St 1-uv (-u
Gev layer 3 - n-type amorphous 5a1-3I Cs G
e1 layer 4.14: Base electrode 1 made of metal or semiconductor
1...p-type amorphous Si layer 12-p-type or n-type amorphous S j o, b Ge o
, 4 layers 15...n-type amorphous Si layer 15...p-type amorphous Se layer 16...n-type amorphous Se layer 17=p-type amorphous S10.7CO , 3rd layer sub-agent patent attorney Junnosuke Nakamura

Claims (1)

【特許請求の範囲】[Claims] (1)  金属又は半導体からなる基体電極上に形成さ
れた5〜60原子チの水素を含む口形(又はp形の非晶
質S11−5−t Cs 001層、その上の5〜30
原子チの水素を含むp形(又はp形)又はp形(又はp
形)の非晶質511−u−vCuGev層、その上の5
〜60原子チの水素を含むp形(又はp形)の非晶質5
11x y L X Ge y層(ここで、0.3>X
≧0.1〉y層0.0.3>U≧0.1>y層0.0.
5>S2O,1’> t≧O1v>y、v>t )の三
層からなる光導電膜を有することを特徴とする記録用部
品。 (2、特許請求の範囲第1項記載の記録用部品において
、前記基体電極と前記p形(又はp形)の非晶質5a1
−5−tC5GeH層との間にp形(又はp形)の非晶
質8e層、前記p形(又はp形)の非晶質S ’ 1 
x y Cx G(−y層の上゛にp形(又はp形)の
非晶質Se層が設けられているか、もしくは、前記両S
e層のいずれか一方が設けられていることを特徴とする
記録用部品。
(1) An amorphous (or p-type amorphous S11-5-t Cs 001 layer containing 5 to 60 atoms of hydrogen formed on a base electrode made of a metal or a semiconductor, and a 5 to 30
p-type (or p-type) or p-type (or p-type) containing hydrogen atoms
amorphous 511-u-vCuGev layer of
p-type (or p-type) amorphous 5 containing ~60 atoms of hydrogen
11x y L X Ge y layer (where 0.3>X
≧0.1>y layer 0.0.3>U≧0.1>y layer 0.0.
5>S2O, 1'>t≧O1v>y, v>t) A recording component comprising a photoconductive film consisting of three layers. (2. In the recording component according to claim 1, the base electrode and the p-type (or p-type) amorphous 5a1
A p-type (or p-type) amorphous 8e layer between the -5-tC5GeH layer and the p-type (or p-type) amorphous S' 1
x y Cx G (a p-type (or p-type) amorphous Se layer is provided on top of the -y layer, or both of the S
A recording component characterized by being provided with either one of the e-layers.
JP2479483A 1983-02-18 1983-02-18 Recording member Granted JPS58154850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2479483A JPS58154850A (en) 1983-02-18 1983-02-18 Recording member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2479483A JPS58154850A (en) 1983-02-18 1983-02-18 Recording member

Related Child Applications (3)

Application Number Title Priority Date Filing Date
JP3293786A Division JPS61221755A (en) 1986-02-19 1986-02-19 Recording parts having amorphous si-ge type layer
JP3293886A Division JPS61228457A (en) 1986-02-19 1986-02-19 Recording member having amorphous si-c type layer
JP3293986A Division JPS61228455A (en) 1986-02-19 1986-02-19 Recording member having si-c layer and si-ge layer

Publications (2)

Publication Number Publication Date
JPS58154850A true JPS58154850A (en) 1983-09-14
JPS6248217B2 JPS6248217B2 (en) 1987-10-13

Family

ID=12148091

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPS58154850A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002691A1 (en) * 1983-12-16 1985-06-20 Hitachi, Ltd. Photosensitive member for electrophotography
JPS61221755A (en) * 1986-02-19 1986-10-02 Hitachi Ltd Recording parts having amorphous si-ge type layer
JPS61228455A (en) * 1986-02-19 1986-10-11 Hitachi Ltd Recording member having si-c layer and si-ge layer
US4683185A (en) * 1984-07-16 1987-07-28 Minolta Camera Kabushiki Kaisha Electrophotosensitive member having a depletion layer
US4683184A (en) * 1984-07-16 1987-07-28 Minolta Camera Kabushiki Kaisha Electrophotosensitive member having alternating amorphous semiconductor layers
US4686164A (en) * 1984-07-20 1987-08-11 Minolta Camera Kabushiki Kaisha Electrophotosensitive member with multiple layers of amorphous silicon
JPS62220012A (en) * 1986-03-20 1987-09-28 Fujitsu Ltd Piezoelectric vibration element
US4738912A (en) * 1985-09-13 1988-04-19 Minolta Camera Kabushiki Kaisha Photosensitive member having an amorphous carbon transport layer
US4741982A (en) * 1985-09-13 1988-05-03 Minolta Camera Kabushiki Kaisha Photosensitive member having undercoat layer of amorphous carbon
US4743522A (en) * 1985-09-13 1988-05-10 Minolta Camera Kabushiki Kaisha Photosensitive member with hydrogen-containing carbon layer
US4749636A (en) * 1985-09-13 1988-06-07 Minolta Camera Kabushiki Kaisha Photosensitive member with hydrogen-containing carbon layer
US4868076A (en) * 1986-09-26 1989-09-19 Minolta Camera Kabushiki Kaisha Photosensitive member comprising charge generating layer and charge transporting layer
US4871632A (en) * 1986-09-26 1989-10-03 Minolta Camera Kabushiki Kaisha Photosensitive member comprising charge generating layer and charge transporting layer
US5166018A (en) * 1985-09-13 1992-11-24 Minolta Camera Kabushiki Kaisha Photosensitive member with hydrogen-containing carbon layer
US5906708A (en) * 1994-11-10 1999-05-25 Lawrence Semiconductor Research Laboratory, Inc. Silicon-germanium-carbon compositions in selective etch processes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01161618U (en) * 1988-05-06 1989-11-09

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126150A (en) * 1977-03-28 1978-11-21 Rca Corporation Photovoltaic device having increased absorption efficiency

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126150A (en) * 1977-03-28 1978-11-21 Rca Corporation Photovoltaic device having increased absorption efficiency

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002691A1 (en) * 1983-12-16 1985-06-20 Hitachi, Ltd. Photosensitive member for electrophotography
US4683184A (en) * 1984-07-16 1987-07-28 Minolta Camera Kabushiki Kaisha Electrophotosensitive member having alternating amorphous semiconductor layers
US4683185A (en) * 1984-07-16 1987-07-28 Minolta Camera Kabushiki Kaisha Electrophotosensitive member having a depletion layer
US4686164A (en) * 1984-07-20 1987-08-11 Minolta Camera Kabushiki Kaisha Electrophotosensitive member with multiple layers of amorphous silicon
US4741982A (en) * 1985-09-13 1988-05-03 Minolta Camera Kabushiki Kaisha Photosensitive member having undercoat layer of amorphous carbon
US4738912A (en) * 1985-09-13 1988-04-19 Minolta Camera Kabushiki Kaisha Photosensitive member having an amorphous carbon transport layer
US4743522A (en) * 1985-09-13 1988-05-10 Minolta Camera Kabushiki Kaisha Photosensitive member with hydrogen-containing carbon layer
US4749636A (en) * 1985-09-13 1988-06-07 Minolta Camera Kabushiki Kaisha Photosensitive member with hydrogen-containing carbon layer
US5166018A (en) * 1985-09-13 1992-11-24 Minolta Camera Kabushiki Kaisha Photosensitive member with hydrogen-containing carbon layer
JPS61228455A (en) * 1986-02-19 1986-10-11 Hitachi Ltd Recording member having si-c layer and si-ge layer
JPS61221755A (en) * 1986-02-19 1986-10-02 Hitachi Ltd Recording parts having amorphous si-ge type layer
JPS62220012A (en) * 1986-03-20 1987-09-28 Fujitsu Ltd Piezoelectric vibration element
US4868076A (en) * 1986-09-26 1989-09-19 Minolta Camera Kabushiki Kaisha Photosensitive member comprising charge generating layer and charge transporting layer
US4871632A (en) * 1986-09-26 1989-10-03 Minolta Camera Kabushiki Kaisha Photosensitive member comprising charge generating layer and charge transporting layer
US5906708A (en) * 1994-11-10 1999-05-25 Lawrence Semiconductor Research Laboratory, Inc. Silicon-germanium-carbon compositions in selective etch processes
US5961877A (en) * 1994-11-10 1999-10-05 Robinson; Mcdonald Wet chemical etchants
US6064081A (en) * 1994-11-10 2000-05-16 Lawrence Semiconductor Research Laboratory, Inc. Silicon-germanium-carbon compositions and processes thereof

Also Published As

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