Optimization of front TCO layer of silicon heterojunction solar cells for tandem applications

Mehdi Leilaeioun, Zhengshan Yu, Zachary Holman

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

5 Scopus citations

Abstract

The front transparent conductive oxide (TCO) layers of silicon heterojunction solar cells need to be optimized electrically and optically to minimize losses due to sheet resistance and free carrier absorption. This optimization has already investigated for the wavelength range of 300-1100 nm, but not for the projected wavelength range of 700-1100 nm for a silicon cell that is applied in a tandem structure as the bottom cell. Here, we demonstrate a routine for determining the total loss associated with the front TCO layer and employ it to determine which carrier density, mobility, and finger pitch combinations minimize loss. For a representative ITO film with a mobility of approximately 20 cm2/Vs and a carrier density of approximately 2.5×1020 cm-3, the total loss over the wavelength range of 700-1100 nm is minimized by using a linger spacing of 3 mm and ITO thickness of 100-110 nm.

Original languageEnglish (US)
Title of host publication2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages681-684
Number of pages4
Volume2016-November
ISBN (Electronic)9781509027248
DOIs
StatePublished - Nov 18 2016
Event43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States
Duration: Jun 5 2016Jun 10 2016

Other

Other43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
CountryUnited States
CityPortland
Period6/5/166/10/16

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Optimization of front TCO layer of silicon heterojunction solar cells for tandem applications'. Together they form a unique fingerprint.

  • Cite this

    Leilaeioun, M., Yu, Z., & Holman, Z. (2016). Optimization of front TCO layer of silicon heterojunction solar cells for tandem applications. In 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016 (Vol. 2016-November, pp. 681-684). [7749687] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2016.7749687