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Title: Optical control of multi-stage thin film solar cell production

Abstract

Embodiments include methods of depositing and controlling the deposition of a film in multiple stages. The disclosed deposition and deposition control methods include the optical monitoring of a deposition matrix to determine a time when at least one transition point occurs. In certain embodiments, the transition point or transition points are a stoichiometry point. Methods may also include controlling the length of time in which material is deposited during a deposition stage or controlling the amount of the first, second or subsequent materials deposited during any deposition stage in response to a determination of the time when a selected transition point occurs.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1253341
Patent Number(s):
9343378
Application Number:
14/204,795
Assignee:
ALLIANCE FOR SUSTAINABLE ENERGY, LLC (Golden, CO)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
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
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Mar 11
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE

Citation Formats

Li, Jian, Levi, Dean H., Contreras, Miguel A., and Scharf, John. Optical control of multi-stage thin film solar cell production. United States: N. p., 2016. Web.
Li, Jian, Levi, Dean H., Contreras, Miguel A., & Scharf, John. Optical control of multi-stage thin film solar cell production. United States.
Li, Jian, Levi, Dean H., Contreras, Miguel A., and Scharf, John. Tue . "Optical control of multi-stage thin film solar cell production". United States. https://www.osti.gov/servlets/purl/1253341.
@article{osti_1253341,
title = {Optical control of multi-stage thin film solar cell production},
author = {Li, Jian and Levi, Dean H. and Contreras, Miguel A. and Scharf, John},
abstractNote = {Embodiments include methods of depositing and controlling the deposition of a film in multiple stages. The disclosed deposition and deposition control methods include the optical monitoring of a deposition matrix to determine a time when at least one transition point occurs. In certain embodiments, the transition point or transition points are a stoichiometry point. Methods may also include controlling the length of time in which material is deposited during a deposition stage or controlling the amount of the first, second or subsequent materials deposited during any deposition stage in response to a determination of the time when a selected transition point occurs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {5}
}

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Works referenced in this record:

Toward ultra thin CIGS solar cells
conference, June 2012


Real time analysis of ultra-thin CIGS thin film deposition
conference, June 2012


Real time spectroscopic ellipsometry of CuInSe2: Growth dynamics, dielectric function, and its dependence on temperature
journal, May 2011


Investigation of the growth process and optical transitions as a function of Ga content in CuIn1−xGaxSe2 thin films at 570 °C
conference, June 2011


Real-time analysis of the microstructural evolution and optical properties of Cu(In,Ga)Se2 thin films as a function of Cu content
journal, October 2011