US 8,883,547 B2 · Production of thin films having photovoltaic properties, comprising depositing an alternate I/III or III/I multi-layer structure and annealing said structure

Abstract

The invention relates to the production of a thin film having photovoltaic properties, containing a I-III-VI2-type alloy and deposited by electrolysis, including the following steps: (a) successive deposits of layers of metallic elements I and III; and (b) thermal post-treatment with the addition of element VI. In particular, step (a) comprises the following operations: (a1) depositing a multi-layer structure comprising at least two layers of element I and two layers of element III, deposited in an alternate manner, and (a2) annealing said structure before adding element VI in order to obtain a I-III alloy.

Claims15

Dependent claims

Method for producing a thin film having photovoltaic properties, based on a I-III-VI2 alloy and deposited by electrolysis, said method comprising at least the steps of:

a) successively depositing layers of metal elements I and III,
b) and applying a thermal post-treatment with an addition of element VI, wherein step a) comprises the following operations:
a1) depositing a multilayer structure comprising at least:
two layers of element I and
two layers of element III,
in at least one alternating sequence of the layers I/III/I/III or III/I/III/I, and
a2) annealing this structure before adding element VI to obtain a layer of I-III alloy.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/500,183Filed 6 Oct 2010

Priority

FR 09 569967 Oct 2009

Published

US 2012/0264255 A118 Oct 2012

Granted

11 Nov 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H10F 77/126
Active materials: comprising only Group I-III-VI chalcopyrite materials, e.g. CuInSe2, CuGaSe2 or CuInGaSe2 [CIGS]
H10F 71/00
Manufacture or treatment of devices covered by this subclass
H10F 71/128
Manufacture or treatment of devices covered by this subclass: annealing
H10F 71/135
Manufacture or treatment of devices covered by this subclass: application of a bias; Current injection

Production of thin films having photovoltaic properties, comprising depositing an alternate I/III or III/I multi-layer structure and annealing said structure

Life of this patent

Production of thin films having photovoltaic properties, comprising depositing an alternate I/III or III/I multi-layer structure and annealing said structure

Life of this patent

Abstract

Claims15