Effectively transparent contacts (ETCs) for solar cells

Rebecca Saive, Colton R. Bukowsky, Sisir Yalamanchili, Mathieu Boccard, Theresa Saenz, Aleca M. Borsuk, Zachary Holman, Harry A. Atwater

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

12 Scopus citations

Abstract

We have developed effectively transparent contacts (ETCs) that allow for increased current in heterojunction solar cells. Micro-meter scaled triangular cross-section grid fingers with micro-meter scaled distance redirect light efficiently to the active area of the solar cell and hence, omit losses through reflection at the front finger grid. Furthermore, the grid fingers are placed close together such that only a very thin layer of transparent conductive oxides (TCO) is necessary which avoids parasitic absorption and can decrease material costs. In this paper we experimentally show current enhancement of ∼2 mA/cm2 in silicon heterojunction solar cells using ETCs. 1 mA/cm2 is gained through less parasitic absorption and 1 mA/cm2 is gained by efficient redirection of light and therefore, absent shadowing losses.

Original languageEnglish (US)
Title of host publication2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3612-3615
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

Keywords

  • Effectively Transparent Contacts
  • Silicon Heterojunction Solar Cells
  • Three-Dimensional Printing

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Effectively transparent contacts (ETCs) for solar cells'. Together they form a unique fingerprint.

  • Cite this

    Saive, R., Bukowsky, C. R., Yalamanchili, S., Boccard, M., Saenz, T., Borsuk, A. M., Holman, Z., & Atwater, H. A. (2016). Effectively transparent contacts (ETCs) for solar cells. In 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016 (Vol. 2016-November, pp. 3612-3615). [7750346] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2016.7750346