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EP0390523A2
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An optical element utilizing a molecular heterojunction
Assignee: Mitsubishi Electric Corp
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Filing: 1990-03-28
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Granted: —
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Expires: 2010-03-28
Abstract
Abstract An optical element utilizing a molecular heterojunction, includes a first redox material film comprising first redox material, a second redox material film comprising second redox material having a different redox potential from that of the first redox material and connected to the first redox material film, a first electrode connected to the first redox material film, and a second electrode connected to the second redox material film. The optical element exhibits photoconduction property when it is irradiated with light, by that the states of electrons in the first and second redox material are controlled by the light irradiation utilizing the difference in the redox potential of the redox material.
Inventors
- 👤 Satoru C/O Mitsubishi Denki K.K. Isoda
- 👤 Satoshi C/O Mitsubishi Denki K.K. Ueyama
- 👤 Hiroaki C/O Mitsubishi Denki K.K. Kawakubo
- 👤 Mitsuo C/O Mitsubishi Denki K.K. Maeda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 08:44
CPC Classifications
H; H10; H10K; H10K39/00; H10K39/30; H10K39/32; B; B82; B82Y; B82Y10/00; H10K10/00; H10K10/701; H10K85/00; H10K85/30; H10K85/341; H10K85/344; H10K85/60; H10K85/615; H10K85/621; H10K85/649; H10K85/657; H10K85/6572; H10K85/701; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/549
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
An optical element utilizing a molecular heterojunction comprising: a first redox material film comprising first oxidation/reduction (hereinafter referred to as "redox") material; a second redox material film comprising second redox material having a different redox potential from that of said first redox material, connected to said first redox material film; a first electrode connected to said first redox material film; a second electrode connected to said second redox material film; and said optical element exhibiting photoconduction property when it is irradiated with light, by that the states of electrons in said first and second redox material are controlled by the light irradiation utilizing the difference in the redox potentials of said redox material.
Claim 2
Dependent Claim
113 words
An optical element utilizing a molecular heterojunction comprising: a first redox material film comprising first oxidation/reduction (hereinafter referred to as "redox") material; a second redox material film comprising second redox material having a different redox potential from that of said first redox material, connected to said first redox material film; a first electrode connected to said first redox material film; a second electrode connected to said second redox material film; and said optical element exhibiting photoconduction property when it is irradiated with light, by that the states of electrons in said first and second redox material are controlled by the light irradiation utilizing the difference in the redox potentials of said redox material.
Claim 3
Dependent Claim
34 words
An optical element as defined in claim 1 wherein said first and second redox material film are respectively a monomolecular film or a built-up film formed by accumulating monomolecular films produced by Langmuir-Blodgett technique.
Claim 4
Dependent Claim
31 words
An optical element as defined in claim 1 wherein said redox material film is either flavin derivative or porphyrin derivative and said second redox material film is the other of them.
Claim 5
Dependent Claim
109 words
An optical element utilizing a molecular heterojunction comprising: a first redox material film comprising first redox material; a second redox material film comprising second redox material having a redox potential different from that of said first redox material, connected to said first redox material film; a first electrode connected to said first redox material film; a second electrode connected to said second redox material film; and said optical element generating an optical voltage when it is irradiated with light, by that the states of electrons in said first and second redox material are controlled by the light irradiation utilizing the difference in the redox potentials of said redox material.
Claim 6
Dependent Claim
109 words
An optical element utilizing a molecular heterojunction comprising: a first redox material film comprising first redox material; a second redox material film comprising second redox material having a redox potential different from that of said first redox material, connected to said first redox material film; a first electrode connected to said first redox material film; a second electrode connected to said second redox material film; and said optical element generating an optical voltage when it is irradiated with light, by that the states of electrons in said first and second redox material are controlled by the light irradiation utilizing the difference in the redox potentials of said redox material.
Claim 7
Dependent Claim
32 words
An optical element as defined in claim 4 wherein said first and second redox material are a monomolecular film or a built-up film formed by accumulating monomolecular films produced by Langmuir-Blodgett technique.
Claim 8
Dependent Claim
31 words
An optical element as defined in claim 4 wherein said redox material film is either flavin derivative or porphyrin derivative and said second redox material film is the other of them.
Claim 9
Dependent Claim
151 words
An optical element as defined in claim 3 wherein said flavin derivative is represented by the general formula (I): where R¹, R² are each a hydrogen atom or an alkyl group which comprises the combination of the following: (i) R¹ is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms R² is an alkyl group having 15 to 20 carbon atoms (ii) R¹ is an alkyl group having 6 to 20 carbon atoms R² is an alkyl group having 6 to 20 carbon atoms (iii) R¹ is an alkyl group having 15 to 20 carbon atoms R² is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and R³ and R⁴ are each a substituent including a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a carbonyl group, a methylthio acetic acid group, or a methylthio succinic acid group.
Claim 10
Dependent Claim
107 words
An optical element as defined in claim 3 wherein said porphyrin derivative is porphyrin metal complex or its alkali metallic salt which is represented by the following formulae (II), (III), (IV): where M is Fe or Ru, x, y, and Z and each a ligand against M, and the structure of (II), (III), (IV) can be obtained dependent on the kinds and the valence bond number of M, which are, each a halogen atom, CO, -OCOCH₃, pyridine, imidazole, P(OR⁵)₃, or PR⁵₃(R⁵ represents lower alkyl group of C₁ to C₅), and X and Y are the same or different and m and n are the same or different.
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