Radial PN junction, wire array solar cells

B. M. Kayes, M. A. Filler, M. D. Henry, J. R. Maiolo, M. D. Kelzenberg, M. C. Putnam, J. M. Spurgeon, K. E. Plass, A. Scherer, N. S. Lewis, H. A. Atwater

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

14 Citations (Scopus)


Radial pn junctions are of interest in photovoltaics because of their potential to reduce the materials costs associated with cell fabrication. However, devices fabricated to date based on Au-catalyzed vapor-liquid-solid growth have suffered from low open-circuit voltages (to our knowledge the highest reports are 260 mV in the solid state and 389 mV in solid-liquid junctions). Herein we report on the potential of low-cost catalysts such as Cu and Ni to fabricate Si wire arrays with potentially higher minority-carrier lifetimes than is possible with a Au catalyst, as well as on the use of reactive ion etching to fabricate high-purity analogs to vapor-liquid-solid grown arrays.

Original languageEnglish
Title of host publication33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
Publication statusPublished - 2008
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA, United States
Duration: May 11 2008May 16 2008

Publication series

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


Other33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
CountryUnited States
CitySan Diego, CA

ASJC Scopus subject areas

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

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