Stabilization of High Efficiency CdTe Photovoltaic Modules in Controlled Indoor Light Soaking

Stabilization of High Efficiency CdTe Photovoltaic Modules in Controlled Indoor Light Soaking

Research output: Contribution to conference › Paper

Abstract

The performance and stabilization of large-area, high-efficiency 9%, CdTe photovoltaic (PV) modules maintained under controlled light-soaking nominally at 800 Watts/m2 irradiance and 65?C module temperature are investigated. Degradation of module performance occurs predominantly in the first few hundred hours of exposure under these conditions; these symptoms included losses in fill factor (FF),open-circuit voltage (Voc), and short-circuit current (Isc), which amount to between 7% and 15% total loss in performance. Higher stabilized performance was achieved with lower copper content in the back contact. Transient effects in module Voc and Isc were observed, suggesting partial annealing thereof when stored under low-light levels. Performance changes are analyzed, aided by monitoring thecurrent-voltage characteristics in situ during exposure.

Original language	American English
Number of pages	7
State	Published - 2003
Event	National Center for Photovoltaics (NCPV) and Solar Program Review Meeting - Denver, Colorado Duration: 24 Mar 2003 → 26 Mar 2003

Conference

Conference	National Center for Photovoltaics (NCPV) and Solar Program Review Meeting
City	Denver, Colorado
Period	24/03/03 → 26/03/03

NREL Publication Number

NREL/CP-520-33543

Keywords

cadmium telluride (CdTe) photovoltaic solar cells modules
CdTe
copper migration
PV module
stress testing

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

https://www.nrel.gov/docs/fy03osti/33543.pdf

Cite this

@conference{51b9ff95cf4146f499b338cd28c64850,

title = "Stabilization of High Efficiency CdTe Photovoltaic Modules in Controlled Indoor Light Soaking",

abstract = "The performance and stabilization of large-area, high-efficiency 9%, CdTe photovoltaic (PV) modules maintained under controlled light-soaking nominally at 800 Watts/m2 irradiance and 65?C module temperature are investigated. Degradation of module performance occurs predominantly in the first few hundred hours of exposure under these conditions; these symptoms included losses in fill factor (FF),open-circuit voltage (Voc), and short-circuit current (Isc), which amount to between 7% and 15% total loss in performance. Higher stabilized performance was achieved with lower copper content in the back contact. Transient effects in module Voc and Isc were observed, suggesting partial annealing thereof when stored under low-light levels. Performance changes are analyzed, aided by monitoring thecurrent-voltage characteristics in situ during exposure.",

keywords = "cadmium telluride (CdTe) photovoltaic solar cells modules, CdTe, copper migration, PV module, stress testing",

author = "NREL",

year = "2003",

language = "American English",

note = "National Center for Photovoltaics (NCPV) and Solar Program Review Meeting ; Conference date: 24-03-2003 Through 26-03-2003",

}

TY - CONF

T1 - Stabilization of High Efficiency CdTe Photovoltaic Modules in Controlled Indoor Light Soaking

AU - NREL, null

PY - 2003

Y1 - 2003

N2 - The performance and stabilization of large-area, high-efficiency 9%, CdTe photovoltaic (PV) modules maintained under controlled light-soaking nominally at 800 Watts/m2 irradiance and 65?C module temperature are investigated. Degradation of module performance occurs predominantly in the first few hundred hours of exposure under these conditions; these symptoms included losses in fill factor (FF),open-circuit voltage (Voc), and short-circuit current (Isc), which amount to between 7% and 15% total loss in performance. Higher stabilized performance was achieved with lower copper content in the back contact. Transient effects in module Voc and Isc were observed, suggesting partial annealing thereof when stored under low-light levels. Performance changes are analyzed, aided by monitoring thecurrent-voltage characteristics in situ during exposure.

AB - The performance and stabilization of large-area, high-efficiency 9%, CdTe photovoltaic (PV) modules maintained under controlled light-soaking nominally at 800 Watts/m2 irradiance and 65?C module temperature are investigated. Degradation of module performance occurs predominantly in the first few hundred hours of exposure under these conditions; these symptoms included losses in fill factor (FF),open-circuit voltage (Voc), and short-circuit current (Isc), which amount to between 7% and 15% total loss in performance. Higher stabilized performance was achieved with lower copper content in the back contact. Transient effects in module Voc and Isc were observed, suggesting partial annealing thereof when stored under low-light levels. Performance changes are analyzed, aided by monitoring thecurrent-voltage characteristics in situ during exposure.

KW - cadmium telluride (CdTe) photovoltaic solar cells modules

KW - CdTe

KW - copper migration

KW - PV module

KW - stress testing

M3 - Paper

T2 - National Center for Photovoltaics (NCPV) and Solar Program Review Meeting

Y2 - 24 March 2003 through 26 March 2003

ER -

Stabilization of High Efficiency CdTe Photovoltaic Modules in Controlled Indoor Light Soaking

Abstract

Conference

NREL Publication Number

Keywords

UN SDGs

Access to Document

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Cite this