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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):
10361331
Application Number:
15/409,142
Assignee:
International Business Machines Corporation (Armonk, NY)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
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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