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US5220181A Expired / Lapsed US ⏱️ 0.0 years remaining

Photovoltaic element of junction type with an organic semiconductor layer formed of a polysilane compound

Assignee: Canon Inc
•
Filing: 1992-01-15
•
Granted: 1993-06-15
•
Expires: 2012-01-15
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Abstract

Abstract An improved junction type photovoltaic element, characterized by having an organic semiconductor layer formed of a polysilane compound of 6000 to 200000 in weight average molecular weight which is represented by the following general formula (I): <IMAGE> (I) Wherein, R1 stands for an albyl group of 1 to 2 carbon atoms; R2 stands for an alkyl group, cycloalkyl group, aryl group or aralkyl group of 3 to 8 carbon atoms; R3 stands for an alkyl group of 1 to 4 carbon atoms; R4 stands for an alkyl group of 1 to 4 carbon atoms; A and A' respectively stands for an alkyl group, cycloalkyl group, aryl group or aralkyl group of 4 to 12 carbon atoms wherein the two substituents may be the same or different one from the other; and each of n and m is a mole ratio showing the proportion of the number of respective monomers versus the total of the monomers in the polymer wherein n+m=1, 0<n</=1 and 0</=m<1.

Inventors

  • 👤 Masahiro Kanai
  • 👤 Hisami Tanaka
  • 👤 Harumi Sakou

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 20:41
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60; H; H10; H10F; H10F10/00; H10F10/10; H10F10/12; H10F10/18; H10F77/00; H10F77/20; H10F77/206; H10F77/211; H10K; H10K30/00; H10K30/354; H10K85/00; H10K85/10; H10K85/40; H10K30/50; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/549

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 157 words
An improved junction type photovoltaic element, comprising an organic semiconductor layer formed of a polysilane compound of 6000 to 200000 in weight average molecular weight which is represented by the following general formula (I): ##STR71## wherein, R 1 is an alkyl group of 1 to 2 carbon atoms; R 2 is an alkyl group, cycloalkyl group, aryl group or aralkyl group of 3 to 8 carbon atoms; R 3 is an alkyl group of 1 to 4 carbon atoms; R 4 is an alkyl group of 1 to 4 carbon atoms; A and A' are independently an alkyl group, cycloalkyl group, aryl group or aralkyl group of 4 to 12 carbon atoms wherein the two substituents may be the same or different one from the other; and n and m each is a mole ratio of the number of Si monomers designated to the total number of Si monomers in the polysilane wherein n+m=1, 0<n≦1 and 0≦m<1.
Claim 2
Dependent Claim 157 words
An improved junction type photovoltaic element, comprising an organic semiconductor layer formed of a polysilane compound of 6000 to 200000 in weight average molecular weight which is represented by the following general formula (I): ##STR71## wherein, R 1 is an alkyl group of 1 to 2 carbon atoms; R 2 is an alkyl group, cycloalkyl group, aryl group or aralkyl group of 3 to 8 carbon atoms; R 3 is an alkyl group of 1 to 4 carbon atoms; R 4 is an alkyl group of 1 to 4 carbon atoms; A and A' are independently an alkyl group, cycloalkyl group, aryl group or aralkyl group of 4 to 12 carbon atoms wherein the two substituents may be the same or different one from the other; and n and m each is a mole ratio of the number of Si monomers designated to the total number of Si monomers in the polysilane wherein n+m=1, 0<n≦1 and 0≦m<1.
Claim 3
Dependent Claim 57 words
A junction type photovoltaic element according to claim 1, wherein A and A' in the general formula (I) are independently an alkyl group of 4 to 12 carbon atoms, a cycloalkyl group of 4 to 12 carbon atoms, an aryl group of 4 to 12 carbon atoms or an aralkyl group of 4 to 12 carbon atoms.
Claim 4
Dependent Claim 17 words
A junction type photovoltaic element according to claim 1 which is of a Semiconductor Insulator-Semiconductor junction type.
Claim 5
Dependent Claim 16 words
A junction type photovoltaic element according to claim 1 which is of a Metal-Insulator-Semiconductor junction type.
Claim 6
Dependent Claim 16 words
A junction type photovoltaic element according to claim 1 which is of a Schottky junction type.

References Cited (Backward Citations)

JPS6098431A Cited
JPS60119550A Cited
US4618551A Cited
JPS62269964A Cited
JPS6338033A Cited
US4772525A Cited
US4839451A Cited
US4855201A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-06-14 1996-12-14 1997-06-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-06-14 2000-12-14 2001-06-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-06-14 2004-12-14 2005-06-15 $7700.00 Window Closed / Lapsed

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