CN102881831A - Novel environment-friendly transmission-type photoelectric detector - Google Patents
Novel environment-friendly transmission-type photoelectric detector Download PDFInfo
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- CN102881831A CN102881831A CN2012103888843A CN201210388884A CN102881831A CN 102881831 A CN102881831 A CN 102881831A CN 2012103888843 A CN2012103888843 A CN 2012103888843A CN 201210388884 A CN201210388884 A CN 201210388884A CN 102881831 A CN102881831 A CN 102881831A
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Abstract
The invention relates to a novel environment-friendly transmission-type photoelectric detector. The detector comprises a glass plate, a conductive layer, a photoelectric layer, a positive electrode and a negative electrode, wherein the conductive layer is compounded on the glass plate; the photoelectric layer is compounded on the conductive layer; and the positive electrode and the negative electrode are respectively arranged on the photoelectric layer and the conductive layer. The detector is characterized in that the photoelectric layer is a metalloporphyrin coating. The detector has the advantages that the detector can be used in the middle of a light emitting device, and the real-time energy change of light is monitored through the change of an electric signal under the conditions that a large amount of light energy is not lost, and the wavelength and direction of the light are not changed; the coating consists of a series of porphyrin solutions, and the sensitive wavelength of porphyrin can be changed by replacing central atoms on a porphyrin structure with different metal atoms, so that visible light and near infrared light are absorbed and completely covered; the light absorptivity of the porphyrin solutions is very low, and the light can be completely transmitted into the porphyrin solutions basically, so that the continual use of the light is not influenced; and the porphyrin solutions are organic solutions and can be naturally degraded, so that environment friendliness is achieved.
Description
Technical field
This patent relates to a kind of new green environment protection through mode photodetector structure, belongs to the electro-optical pickoff field
Background technology
Photoelectric technology is the new and high technology that traditional optical technology and modern microelectric technique and computer technology are closely linked, and is the important means of obtaining optical information or extracting other information (such as physical quantitys such as power, temperature, displacement, speed) by light.The photoelectric type detector is to utilize photoelectric device light signal to be changed into the device of the signal of telecommunication.During the work of photoelectric type detector, first measured information is converted into the variation of light quantity, then again the variation of light quantity is converted into the variation of corresponding electric weight by photoelectric device, thereby realize the measurement of non electrical quantity.Its device core is photoelectric device (light-sensitive element), and theoretical foundation is photoelectric effect.
The photoelectric type detector has that noncontact, high accuracy, reaction are fast, good reliability, resolution advantages of higher, is widely used in the every field such as automatic control, smart machine, navigation system.The kind of photoelectric type detector is very abundant, and using has semiconductor laser device, photoelectric tube and optical fiber etc. more widely.
But the main flow photodetector mostly is greatly non-through mode structure at present, often be positioned at total [if laser-laser-detector is regarded as a complete system, present detector is non-through mode mostly, i.e. the order of (laser-laser-detector); And the detector of through mode can be (laser-laser-detector-laser) such order, the energy of a loss about 10% during by detector, laser by detector can also continue to use, thereby accomplish laser power, the Real-Time Monitoring of energy size] least significant end, make light in the cut-off of detector end or break-in, limited its range of application and detection accuracy.Cut-off light is a key character of non-through mode photodetector, and what bad result not is just in some occasion and be not suitable for, so we just can design the photodetector of through mode.Through mode photodetector and non-through mode photodetector are not to replace and substituted relation, but the detector in two kinds of different application fields.
Summary of the invention
The present invention aims to provide a kind of new green environment protection through mode photodetector structure, has limited the problem of its range of application in the cut-off of detector end or break-in with the light that makes that solves that prior art exists.
Technical scheme of the present invention is: a kind of new green environment protection through mode photodetector structure, comprise glass plate, conductive layer, photonic layer and positive and negative electrode, conductive layer is compounded on the glass plate, photonic layer is compounded on the conductive layer, be respectively equipped with positive and negative electrode at photonic layer and conductive layer, it is characterized in that described photonic layer is the metalloporphyrin coating.
Described metalloporphyrin coating is made of a series of metalloporphyrin solution, replaces the structural central atom of porphyrin with the sensitive wave length of change porphyrin with a kind of metallic atom, thereby accomplishes the absorption all standing of visible light and near infrared band.
The present invention has the following advantages:
1. Real-Time Monitoring: this kind structure is different from photodetector in the past, it can be used for the middle part of luminescent device, do not losing in a large number light ray energy, and do not making the real-time energy changing of monitoring light in the wavelength of light and the situation that direction changes by the variation of the signal of telecommunication.
2. all band covers: porphyrin solution is a series of solution, replace the structural central atom of porphyrin with different metallic atoms and can change the sensitive wave length (sensitive wave length is the highest wavelength of porphyrin absorptivity) of porphyrin, thereby accomplish the absorption all standing of visible light and near infrared band.
3. non-cut-off structure: porphyrin solution can be accomplished the full impregnated mistake substantially to the absorptivity very low (5%-10%) of light, and the continuation that does not affect light is used.
4. porphyrin solution is organic solution, but natural degradation, environmental protection.
Description of drawings
Fig. 1 is cross section structure schematic diagram of the present invention.
Embodiment
Referring to Fig. 1, a kind of new green environment protection through mode of the present invention photodetector structure comprises glass plate 1, conductive layer 2, photonic layer, positive electrode 4 and negative electrode 5, and conductive layer 2 is compounded on the glass plate 1, and described photonic layer is metalloporphyrin coating 3.Metalloporphyrin coating 3 is compounded on the conductive layer 2, is respectively equipped with positive electrode 4 and negative electrode 5 in metalloporphyrin coating 3 and conductive layer 2.
Described metalloporphyrin coating 3 is made of a series of metalloporphyrin solution, replace the sensitive wave length that the structural central atom of porphyrin can change porphyrin with different a kind of metallic atom (metallic element in nearly all periodic table), sensitive wave length is the highest wavelength of porphyrin absorptivity, thereby accomplishes the absorption all standing of visible light and near infrared band.
The preparation method of described metalloporphyrin coating 3 and positive electrode 4 is, evenly smears metalloporphyrin solution, wait for its drying after, at the upper metal spraying of the solid film (being metalloporphyrin coating 3) of drying, and connect copper wire (being positive electrode 4).Connect copper wire as negative electrode 5 at conductive layer 2.
Basic principle of the present invention is that metalloporphyrin (with the similar organic solution of chlorophyll) is placed on the conducting surface 2 of glass plate 1.Utilize the photoelectric effect of metalloporphyrin coating 3, when light irradiation metalloporphyrin, can make metalloporphyrin and conducting surface 2 produce electrical potential difference.When the energy of light changed, this electrical potential difference also can change accordingly.And the variation that can measure electromotive force by the positive and negative electrode on the conducting surface 2 that is connected to metalloporphyrin coating 3 and electro-conductive glass, thereby the energy changing of Real-Time Monitoring light.And that metalloporphyrin is approximately 5%-15%(different wave length absorptivity to the absorptivity of light is different), and do not change direction and the wavelength of light, see through light and still can continue to use.
Described metalloporphyrin layer 3 is the solid films that form by behind the metalloporphyrin solution evaporation, the concrete prescription of metalloporphyrin solution embodiment: metal: Zn, Mg; Organic macromolecule: fullerene, carbon nano-tube can.Metalloporphyrin solution has much a variety of (because differences of metallic atom), and every kind can be as coating, and it is different that difference is sensitive band and conversion ratio.
Claims (2)
1. new green environment protection through mode photodetector structure, comprise glass plate, conductive layer, photonic layer and positive and negative electrode, conductive layer is compounded on the glass plate, photonic layer is compounded on the conductive layer, be respectively equipped with positive and negative electrode at photonic layer and conductive layer, it is characterized in that described photonic layer is the metalloporphyrin coating.
2. new green environment protection through mode photodetector structure according to claim 1, it is characterized in that, described metalloporphyrin coating is made of a series of metalloporphyrin solution, replace the structural central atom of porphyrin with the sensitive wave length of change porphyrin with a kind of metallic atom, thereby accomplish the absorption all standing of visible light and near infrared band.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002111019A (en) * | 2000-07-06 | 2002-04-12 | Mitsubishi Chemicals Corp | Solid-state photoelectric converter, its manufacturing method, solar cell using solid state photoelectric converter and power source |
| CN101307077A (en) * | 2007-05-16 | 2008-11-19 | 南京大学 | Method for synthesizing Sandwich-shaped metalloporphyrin complex and uses thereof |
| US20090308458A1 (en) * | 2006-05-02 | 2009-12-17 | Mitsubishi Chemical Corporation | Method for producing organic photoelectric conversion device and organic photoelectric conversion device |
| JP2010530610A (en) * | 2007-04-23 | 2010-09-09 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | ORGANIC ELECTRIC ELEMENT AND MANUFACTURING METHOD THEREOF |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002111019A (en) * | 2000-07-06 | 2002-04-12 | Mitsubishi Chemicals Corp | Solid-state photoelectric converter, its manufacturing method, solar cell using solid state photoelectric converter and power source |
| US20090308458A1 (en) * | 2006-05-02 | 2009-12-17 | Mitsubishi Chemical Corporation | Method for producing organic photoelectric conversion device and organic photoelectric conversion device |
| JP2010530610A (en) * | 2007-04-23 | 2010-09-09 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | ORGANIC ELECTRIC ELEMENT AND MANUFACTURING METHOD THEREOF |
| CN101307077A (en) * | 2007-05-16 | 2008-11-19 | 南京大学 | Method for synthesizing Sandwich-shaped metalloporphyrin complex and uses thereof |
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Application publication date: 20130116 |