US3858074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric transducer element including a heterojunction formed by a photoelectric transducer film and an intermediate film having a larger energy gap than the photoelectric transducer film
Assignee: Panasonic Holdings Corp
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Filing: 1972-11-06
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Granted: 1974-12-31
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Expires: 1992-11-06
Abstract
Abstract A photoelectric transducer element having high photo and spectral sensitivity in which a material with an energy band gap larger than that of a photoelectric transducer film is interposed between the photoelectric transducer film and a transparent conductive film.
Inventors
- 👤 M Fukai
- 👤 S Fujiwara
- 👤 H Serizawa
- 👤 O Eguchi
- 👤 Y Kuramoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:59
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/22; H10F30/222
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
A PHOTOELECTRIC TRANSDUCER ELEMENT AND A TARGET FOR A IMAGE PICKUP TUBE USING SAID ELEMENT, COMPRISING A PHOTOELECTRIC TRANSDUCER FILM, A TRANSPARENT CONDUCTIVE FILM, A MATERIAL INTERPOSED BEWTEEN SAID PHOTOELECTRIC TRANSDUCER FILM AND SAID TRANSPARENT CONDUCTIVE FILM, AND A HETEROJUNCTION OF SAID PHOTOELECTRIC TRANSDUCER FILM AND SAID MATERIAL, SAID MATERIAL HAVING A LARGER ENERGY GAP TNAN SAID PHOTOELECTRIC TRANSDUCER FILM, SAID PHOTOELECTRIC TRANSDUCER FILM CONTAINING ZNYCD1-YTE (0.1 Y 0.9) AS A MAIN COMPONENT, AND SAID
Claim 2
Dependent Claim
75 words
A PHOTOELECTRIC TRANSDUCER ELEMENT AND A TARGET FOR A IMAGE PICKUP TUBE USING SAID ELEMENT, COMPRISING A PHOTOELECTRIC TRANSDUCER FILM, A TRANSPARENT CONDUCTIVE FILM, A MATERIAL INTERPOSED BEWTEEN SAID PHOTOELECTRIC TRANSDUCER FILM AND SAID TRANSPARENT CONDUCTIVE FILM, AND A HETEROJUNCTION OF SAID PHOTOELECTRIC TRANSDUCER FILM AND SAID MATERIAL, SAID MATERIAL HAVING A LARGER ENERGY GAP TNAN SAID PHOTOELECTRIC TRANSDUCER FILM, SAID PHOTOELECTRIC TRANSDUCER FILM CONTAINING ZNYCD1-YTE (0.1 Y 0.9) AS A MAIN COMPONENT, AND SAID
Claim 3
Dependent Claim
44 words
A photoelectric transducer element and a target for an image pickup tube using said element according to claim 1, wherein said photoelectric transducer film containing ZnyCd1-yTe (0.1 < or = y < or = 0.9) as the main component further contains indium added thereto.
Claim 4
Dependent Claim
49 words
A photoelectric transducer element and a target for an image pickup tube using said element according to claim 2, wherein said photoelectric transducer film containing ZnyCd1-yTe (0.1 < or = y < or = 0.9) as the main component contains 0.02 to 3.2 atomic percent of indium added thereto.
Claim 5
Dependent Claim
54 words
A photoelectric transducer element and a target for an image pickup tube using said element according to claim 1, wherein said photoelectric transducer film containing ZnyCd1-yTe (0.1 < or = y < or = 0.9) as the main component further contains 30 mol% or less of a compound of In and Te added thereto.
Claim 6
Dependent Claim
131 words
A photoelectric transducer element and a target for an image pickup tube using said element, comprising a photoelectric transducer film, a transparent conductive film, a material interposed between said photoelectric transducer film and said transparent conductive film, and a heterojunction of said photoelectric transducer film and said material, said material having a larger energy gap than said photoelectric transducer film, said photoelectric transducer film containing ZnyCd1-yTe (0 < or = y < or = 1) as a main component and further containing 30 mol percent or less of a compound of In and Te added thEreto, said photoelectric transducer film having the formula (ZnyCd1-yTe (0 < or = y < or = 1))z(In2Te3)1-z (0.7<z<1), and said material containing ZnSxSe1-x(0 < or = x < or = 1) as a main component.
Claim 7
Dependent Claim
131 words
A photoelectric transducer element and a target for an image pickup tube using said element, comprising a photoelectric transducer film, a transparent conductive film, a material interposed between said photoelectric transducer film and said transparent conductive film, and a heterojunction of said photoelectric transducer film and said material, said material having a larger energy gap than said photoelectric transducer film, said photoelectric transducer film containing ZnyCd1-yTe (0 < or = y < or = 1) as a main component and further containing 30 mol percent or less of a compound of In and Te added thEreto, said photoelectric transducer film having the formula (ZnyCd1-yTe (0 < or = y < or = 1))z(In2Te3)1-z (0.7<z<1), and said material containing ZnSxSe1-x(0 < or = x < or = 1) as a main component.
Claim 8
Dependent Claim
25 words
A photoelectric transducer element and a target for an image pickup tube using said element according to claim 5, wherein x 0 and z 0.95.
Claim 9
Dependent Claim
123 words
A photoelectric transducer element and a target for an image pickup tube using said element, comprising a photoelectric transducer film, a transparent conductive film, a material interposed between said photoelectric transducer film and said transparent conductive film, and a heterojunction of said photoelectric transducer film and said material, said material having a larger energy gap than said photoelectric transducer film, said photoelectric transducer film containing ZnyCd1-yTe (0.5 < or = y < or = 0.8) as a main component and further containing 30 mol percent or less of a compound of In and Te added thereto, said photoelectric transducer film hhaving the formula (ZnyCd1-yTe (0.5 < or = y < or = 0.8))0.95 (In2Te3)0.05, and said material containing ZnSe as a main component.
Claim 10
Dependent Claim
123 words
A photoelectric transducer element and a target for an image pickup tube using said element, comprising a photoelectric transducer film, a transparent conductive film, a material interposed between said photoelectric transducer film and said transparent conductive film, and a heterojunction of said photoelectric transducer film and said material, said material having a larger energy gap than said photoelectric transducer film, said photoelectric transducer film containing ZnyCd1-yTe (0.5 < or = y < or = 0.8) as a main component and further containing 30 mol percent or less of a compound of In and Te added thereto, said photoelectric transducer film hhaving the formula (ZnyCd1-yTe (0.5 < or = y < or = 0.8))0.95 (In2Te3)0.05, and said material containing ZnSe as a main component.
Claim 11
Dependent Claim
25 words
A photoelectric transducer element and a target for an image pickup tube using said element according to claim 5, wherein x 0 and y 0.6.
Claim 12
Dependent Claim
109 words
A photoelectric transducer element and a target for an image pickup tube using said element, comprising a photoelectric transducer film, a transparent conductive film, a material interposed between said photoelectric transducer film and said transparent conductive film, and a heterojunction of said photoelectric transducer film and said material, said material having a larger energy gap than said photoelectric transducer film, said photoelectric transducer film containing Zn0.6Cd0.4Te as a main component and further containing 30 mol percent or less of a compound of In and Te added thereto, said photoelectric transducer film having the formula (Zn0.6Cd0.4Te)z(In2Te3)1-z (0.85 < or = z<1), and said material containing ZnSe as a main component.
Claim 13
Dependent Claim
109 words
A photoelectric transducer element and a target for an image pickup tube using said element, comprising a photoelectric transducer film, a transparent conductive film, a material interposed between said photoelectric transducer film and said transparent conductive film, and a heterojunction of said photoelectric transducer film and said material, said material having a larger energy gap than said photoelectric transducer film, said photoelectric transducer film containing Zn0.6Cd0.4Te as a main component and further containing 30 mol percent or less of a compound of In and Te added thereto, said photoelectric transducer film having the formula (Zn0.6Cd0.4Te)z(In2Te3)1-z (0.85 < or = z<1), and said material containing ZnSe as a main component.
Claim 14
Dependent Claim
25 words
A photoelectric transducer element and a target for an image pickup tube using said element according to claim 5, wherein y 0.6 and z 0.95.
Claim 15
Dependent Claim
21 words
A photoelectric transducer element and a target for an image pickup tube using said element according to claim 10, wherein x
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |