Coordinated electrical characterization system for photovoltaic devices

Jian V. Li, Jerry Tynan, Hao Chih Yuan, Qi Wang, David S. Albin, Xiaonan Li, Dean H. Levi

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

Abstract

We report the development of a coordinated electrical characterization station integrating the data collection and analysis of a wide variety of DC, AC, and transient measurements. The DC current-voltage measurements consider the overall carrier-transport characteristics and cell performance. The AC measurements (e.g., capacitance-voltage, admittance spectroscopy, drive-level capacitance profiling) provide information regarding the spatial distribution and exchange of charge carriers with traps. The transient measurements (e.g., open-circuit voltage decay) investigate the lifetime and recombination of non-equilibrium carriers in a cell. We demonstrate that a coordinated characterization including the DC, AC, and transient measurements may generate new insight and unique understanding of the photovoltaic device. Using the equivalent-circuit parameters determined from the coordinated characterization set, we simulated the decay behavior of the open-circuit voltage in a crystalline silicon solar cell and found good agreement with experiment. The coordinated electrical characterization of CdTe thin-film solar cells not only avoided a misinterpretation of the admittance spectroscopy data, but also provided information to estimate the electrically active thickness, photoconductivity, and mobility of the CdTe absorber.

Original languageEnglish
Title of host publicationProgram - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Pages1749-1752
Number of pages4
DOIs
Publication statusPublished - 2010 Dec 20
Event35th IEEE Photovoltaic Specialists Conference, PVSC 2010 - Honolulu, HI, United States
Duration: 2010 Jun 202010 Jun 25

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Other

Other35th IEEE Photovoltaic Specialists Conference, PVSC 2010
CountryUnited States
CityHonolulu, HI
Period10-06-2010-06-25

All Science Journal Classification (ASJC) codes

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

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