EP0155106A2
Expired / Lapsed
EP
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Photovoltaic element
Assignee: Canon Inc
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Filing: 1985-02-25
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Granted: —
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Expires: 2005-02-25
Abstract
Abstract A photovoltaic element comprises a p-type layer comprising a p-type transition metal oxide, an active layer comprising an amorphous silicon, a n-type layer comprising an amorphous silicon containing a n-type impurity and an electrode.
Inventors
- 👤 Ryoji Fujiwara
- 👤 Minori Yamaguchi
- 👤 Isamu Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
H; H10; H10F; H10F10/00; H10F10/10; H10F10/16; H10F10/164; H10F10/12; H10F10/17; H10F77/00; H10F77/10; H10F77/12; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/548
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
29 words
A photovoltaic element utilising amorphous silicon, characterised by a layer (103) comprising a p-type transition metal oxide united with an active layer (104) comprising a form of amorphous silicon.
Claim 2
Dependent Claim
29 words
A photovoltaic element utilising amorphous silicon, characterised by a layer (103) comprising a p-type transition metal oxide united with an active layer (104) comprising a form of amorphous silicon.
Claim 3
Dependent Claim
20 words
A photovoltaic element according to claim 1 further including a layer (105) comprising an amorphous silicon containing a n-type impurity.
Claim 4
Dependent Claim
20 words
A photovoltaic element according to claim 2 wherein the three layers (103, 104, 105) are formed successively on a substrate.
Claim 5
Dependent Claim
12 words
A photovoltaic element according to claim 3 wherein the substrate is flexible.
Claim 6
Dependent Claim
16 words
A photovoltaic element according to any preceding claim wherein the amorphous silicon is hydrogenated amorphous silicon.
Claim 7
Dependent Claim
17 words
A photovoltaic element according to any preceding claim wherein the active layer is an intrinsic semiconductor layer.
Claim 8
Dependent Claim
27 words
A photovoltaic element according to any preceding claim wherein the n-type impurity is provided by atoms of an element belonging to group V of the periodic table.
Claim 9
Dependent Claim
19 words
A photovoltaic element according to any preceding claim wherein the p-type transition metal oxide is a d-transition metal oxide.
Claim 10
Dependent Claim
20 words
A photovoltaic element according to claim 8 wherein the d-transition metal belongs to group VI A of the periodic table.
Claim 11
Dependent Claim
22 words
A photovoltaic element according to claim 9 wherein the metal belonging to the group VI A of the periodic table is Cr.
Claim 12
Dependent Claim
20 words
A photovoltaic element according to claim 8 wherein the d-transition metal belongs to the group VIII of the periodic table.
Claim 13
Dependent Claim
29 words
A photovoltaic element according to claim 11 wherein the metal belonging to the group VIII of the periodic table is or includes one of Ni, Co, Fe and IR.
Claim 14
Dependent Claim
18 words
A photovoltaic element according to claim 8 wherein the d-transition metal oxide is selected from those shown below:
Claim 15
Dependent Claim
17 words
A photovoltaic element according to any preceding claim wherein the p-type transition metal oxide contains hydrogen atoms.
Claim 16
Dependent Claim
25 words
A photovoltaic element according to claim 14 wherein the content of hydrogen atoms is from 0.01 atomic % to 50 atomic % per metal atom.
Claim 17
Dependent Claim
21 words
A photovoltaic element according to any preceding claim wherein the p-type layer has a thickness from 20 Å to 5000 8.
Claim 18
Dependent Claim
21 words
A photovoltaic element according to any preceding claim wherein the active layer has a thickness from 1000 Å to 20000 Å.
Claim 19
Dependent Claim
33 words
A photovoltaic element according to claim 2 or claim 3 or any of claims 4 to 17 as dependent thereon wherein the n-type layer has a thickness of 50 Å to 2000 Å.
Claim 20
Dependent Claim
27 words
A photovoltaic element according to any preceding claim including a pair of electrode layers, at least an electrode layer adjacent the p-type layer being transparent or translucent.
References Cited (Backward Citations)
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