Metastable Changes to the Temperature Coefficients of Thin-Film Photovoltaic Modules

Michael Deceglie; Timothy Silverman; William Marion; Sarah Kurtz

doi:10.1109/PVSC.2014.6924926

Metastable Changes to the Temperature Coefficients of Thin-Film Photovoltaic Modules

Michael Deceglie, Timothy Silverman, William Marion, Sarah Kurtz

Materials Science

Research output: Contribution to conference › Paper › peer-review

14 Scopus Citations

Abstract

Transient changes in the performance of thin-film modules with light exposure are a well-known and widely reported phenomenon. These changes are often the result of reversible metastabilities rather than irreversible changes. Here we consider how these metastable changes affect the temperature dependence of photovoltaic performance. We find that in CIGS modules exhibiting a metastable increase in performance with light exposure, the light exposure also induces an increase in the magnitude of the temperature coefficient. It is important to understand such changes when characterizing temperature coefficients and when analyzing the outdoor performance of newly installed modules.

Original language	American English
Pages	337-340
Number of pages	4
DOIs	https://doi.org/10.1109/PVSC.2014.6924926 https://doi.org/10.1109/PVSC.2014.6924926
State	Published - 15 Oct 2014
Event	40th IEEE Photovoltaic Specialist Conference, PVSC 2014 - Denver, United States Duration: 8 Jun 2014 → 13 Jun 2014

Conference

Conference	40th IEEE Photovoltaic Specialist Conference, PVSC 2014
Country/Territory	United States
City	Denver
Period	8/06/14 → 13/06/14

Bibliographical note

See NREL/CP-5J00-61264 for preprint

NREL Publication Number

NREL/CP-5J00-63538

Keywords

CIGS
light-soak
metastability
photovoltaic
temperature coefficient
transient

UN SDGs

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

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title = "Metastable Changes to the Temperature Coefficients of Thin-Film Photovoltaic Modules",

abstract = "Transient changes in the performance of thin-film modules with light exposure are a well-known and widely reported phenomenon. These changes are often the result of reversible metastabilities rather than irreversible changes. Here we consider how these metastable changes affect the temperature dependence of photovoltaic performance. We find that in CIGS modules exhibiting a metastable increase in performance with light exposure, the light exposure also induces an increase in the magnitude of the temperature coefficient. It is important to understand such changes when characterizing temperature coefficients and when analyzing the outdoor performance of newly installed modules.",

keywords = "CIGS, light-soak, metastability, photovoltaic, temperature coefficient, transient",

author = "Michael Deceglie and Timothy Silverman and William Marion and Sarah Kurtz",

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AU - Deceglie, Michael

AU - Silverman, Timothy

AU - Marion, William

AU - Kurtz, Sarah

N1 - See NREL/CP-5J00-61264 for preprint

PY - 2014/10/15

Y1 - 2014/10/15

N2 - Transient changes in the performance of thin-film modules with light exposure are a well-known and widely reported phenomenon. These changes are often the result of reversible metastabilities rather than irreversible changes. Here we consider how these metastable changes affect the temperature dependence of photovoltaic performance. We find that in CIGS modules exhibiting a metastable increase in performance with light exposure, the light exposure also induces an increase in the magnitude of the temperature coefficient. It is important to understand such changes when characterizing temperature coefficients and when analyzing the outdoor performance of newly installed modules.

AB - Transient changes in the performance of thin-film modules with light exposure are a well-known and widely reported phenomenon. These changes are often the result of reversible metastabilities rather than irreversible changes. Here we consider how these metastable changes affect the temperature dependence of photovoltaic performance. We find that in CIGS modules exhibiting a metastable increase in performance with light exposure, the light exposure also induces an increase in the magnitude of the temperature coefficient. It is important to understand such changes when characterizing temperature coefficients and when analyzing the outdoor performance of newly installed modules.

KW - CIGS

KW - light-soak

KW - metastability

KW - photovoltaic

KW - temperature coefficient

KW - transient

UR - http://www.scopus.com/inward/record.url?scp=84912127064&partnerID=8YFLogxK

U2 - 10.1109/PVSC.2014.6924926

DO - 10.1109/PVSC.2014.6924926

M3 - Paper

AN - SCOPUS:84912127064

SP - 337

EP - 340

T2 - 40th IEEE Photovoltaic Specialist Conference, PVSC 2014

Y2 - 8 June 2014 through 13 June 2014

ER -

Metastable Changes to the Temperature Coefficients of Thin-Film Photovoltaic Modules

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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