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Title: Photovoltaic structures having multiple absorber layers separated by a diffusion barrier

Abstract

Photovoltaic structures having multiple absorber layers separated by a diffusion barrier are provided. In one aspect, a method of forming an absorber on a substrate includes: depositing a first layer of light absorbing material on the substrate; depositing a diffusion barrier; depositing a second layer of light absorbing material on the diffusion barrier, wherein the first layer of light absorbing material has a different band gap from the second layer of light absorbing material; and annealing the absorber, wherein the diffusion barrier prevents diffusion of elements between the first layer of light absorbing material and the second layer of light absorbing material during the annealing. A solar cell and method for formation thereof are also provided.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
International Business Machines Corp., Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568639
Patent Number(s):
10,361,331
Application Number:
15/409,142
Assignee:
International Business Machines Corporation (Armonk, NY)
DOE Contract Number:  
EE0006334
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/18/2017
Country of Publication:
United States
Language:
English

Citation Formats

Antunez, Priscilla D., Ellis, Arthur W., Haight, Richard A., Hannon, James B., and Oida, Satoshi. Photovoltaic structures having multiple absorber layers separated by a diffusion barrier. United States: N. p., 2019. Web.
Antunez, Priscilla D., Ellis, Arthur W., Haight, Richard A., Hannon, James B., & Oida, Satoshi. Photovoltaic structures having multiple absorber layers separated by a diffusion barrier. United States.
Antunez, Priscilla D., Ellis, Arthur W., Haight, Richard A., Hannon, James B., and Oida, Satoshi. Tue . "Photovoltaic structures having multiple absorber layers separated by a diffusion barrier". United States. https://www.osti.gov/servlets/purl/1568639.
@article{osti_1568639,
title = {Photovoltaic structures having multiple absorber layers separated by a diffusion barrier},
author = {Antunez, Priscilla D. and Ellis, Arthur W. and Haight, Richard A. and Hannon, James B. and Oida, Satoshi},
abstractNote = {Photovoltaic structures having multiple absorber layers separated by a diffusion barrier are provided. In one aspect, a method of forming an absorber on a substrate includes: depositing a first layer of light absorbing material on the substrate; depositing a diffusion barrier; depositing a second layer of light absorbing material on the diffusion barrier, wherein the first layer of light absorbing material has a different band gap from the second layer of light absorbing material; and annealing the absorber, wherein the diffusion barrier prevents diffusion of elements between the first layer of light absorbing material and the second layer of light absorbing material during the annealing. A solar cell and method for formation thereof are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

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