Effect of weak diodes on the performance of CdTe thin-film modules

Galymzhan T. Koishiyev, James R. Sites

Research output: Chapter in Book/Report/Conference proceedingConference contribution

  • 8 Citations

Abstract

A 2-D numerical circuit model is used to study the effect of weak-diodes on the efficiency of a CdTe thin-film module. Numerical calculations of module-efficiency loss due to weak-diodes of different levels of voltage loss and fractional module area are shown. It is shown that absolute module-efficiency loss Δη (%) varies in systematic fashion with these weak-diode parameters. It was also shown that for given values of fractional area and severity of weak-diodes Δη is a strong function of the distribution pattern. A reliable parameter P to characterize the distribution of weak-diodes is introduced, and its effect on Δη, as well as individual-parameter (FF, VOC) losses, is presented. The partial isolation effect of weak-diodes due to higher transparent-conductive-oxide (TCO) sheet resistance is demonstrated.

LanguageEnglish
Title of host publicationConference Record of the IEEE Photovoltaic Specialists Conference
Pages1978-1981
Number of pages4
DOIs
StatePublished - 2009
Externally publishedYes
Event2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States
Duration: Jun 7 2009Jun 12 2009

Other

Other2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
CountryUnited States
CityPhiladelphia, PA
Period6/7/096/12/09

Fingerprint

Diodes
Thin films
Sheet resistance
Oxides
Networks (circuits)
Electric potential

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

Cite this

Koishiyev, G. T., & Sites, J. R. (2009). Effect of weak diodes on the performance of CdTe thin-film modules. In Conference Record of the IEEE Photovoltaic Specialists Conference (pp. 1978-1981). [5411519] DOI: 10.1109/PVSC.2009.5411519

Effect of weak diodes on the performance of CdTe thin-film modules. / Koishiyev, Galymzhan T.; Sites, James R.

Conference Record of the IEEE Photovoltaic Specialists Conference. 2009. p. 1978-1981 5411519.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Koishiyev, GT & Sites, JR 2009, Effect of weak diodes on the performance of CdTe thin-film modules. in Conference Record of the IEEE Photovoltaic Specialists Conference., 5411519, pp. 1978-1981, 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States, 6/7/09. DOI: 10.1109/PVSC.2009.5411519
Koishiyev GT, Sites JR. Effect of weak diodes on the performance of CdTe thin-film modules. In Conference Record of the IEEE Photovoltaic Specialists Conference. 2009. p. 1978-1981. 5411519. Available from, DOI: 10.1109/PVSC.2009.5411519
Koishiyev, Galymzhan T. ; Sites, James R./ Effect of weak diodes on the performance of CdTe thin-film modules. Conference Record of the IEEE Photovoltaic Specialists Conference. 2009. pp. 1978-1981
@inproceedings{6547bb74ba2d45328abd4cff8955109a,
title = "Effect of weak diodes on the performance of CdTe thin-film modules",
abstract = "A 2-D numerical circuit model is used to study the effect of weak-diodes on the efficiency of a CdTe thin-film module. Numerical calculations of module-efficiency loss due to weak-diodes of different levels of voltage loss and fractional module area are shown. It is shown that absolute module-efficiency loss Δη ({\%}) varies in systematic fashion with these weak-diode parameters. It was also shown that for given values of fractional area and severity of weak-diodes Δη is a strong function of the distribution pattern. A reliable parameter P to characterize the distribution of weak-diodes is introduced, and its effect on Δη, as well as individual-parameter (FF, VOC) losses, is presented. The partial isolation effect of weak-diodes due to higher transparent-conductive-oxide (TCO) sheet resistance is demonstrated.",
author = "Koishiyev, {Galymzhan T.} and Sites, {James R.}",
year = "2009",
doi = "10.1109/PVSC.2009.5411519",
language = "English",
isbn = "9781424429509",
pages = "1978--1981",
booktitle = "Conference Record of the IEEE Photovoltaic Specialists Conference",

}

TY - GEN

T1 - Effect of weak diodes on the performance of CdTe thin-film modules

AU - Koishiyev,Galymzhan T.

AU - Sites,James R.

PY - 2009

Y1 - 2009

N2 - A 2-D numerical circuit model is used to study the effect of weak-diodes on the efficiency of a CdTe thin-film module. Numerical calculations of module-efficiency loss due to weak-diodes of different levels of voltage loss and fractional module area are shown. It is shown that absolute module-efficiency loss Δη (%) varies in systematic fashion with these weak-diode parameters. It was also shown that for given values of fractional area and severity of weak-diodes Δη is a strong function of the distribution pattern. A reliable parameter P to characterize the distribution of weak-diodes is introduced, and its effect on Δη, as well as individual-parameter (FF, VOC) losses, is presented. The partial isolation effect of weak-diodes due to higher transparent-conductive-oxide (TCO) sheet resistance is demonstrated.

AB - A 2-D numerical circuit model is used to study the effect of weak-diodes on the efficiency of a CdTe thin-film module. Numerical calculations of module-efficiency loss due to weak-diodes of different levels of voltage loss and fractional module area are shown. It is shown that absolute module-efficiency loss Δη (%) varies in systematic fashion with these weak-diode parameters. It was also shown that for given values of fractional area and severity of weak-diodes Δη is a strong function of the distribution pattern. A reliable parameter P to characterize the distribution of weak-diodes is introduced, and its effect on Δη, as well as individual-parameter (FF, VOC) losses, is presented. The partial isolation effect of weak-diodes due to higher transparent-conductive-oxide (TCO) sheet resistance is demonstrated.

UR - http://www.scopus.com/inward/record.url?scp=77951560894&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951560894&partnerID=8YFLogxK

U2 - 10.1109/PVSC.2009.5411519

DO - 10.1109/PVSC.2009.5411519

M3 - Conference contribution

SN - 9781424429509

SP - 1978

EP - 1981

BT - Conference Record of the IEEE Photovoltaic Specialists Conference

ER -