Hot-Wire CVD N-Type Emitter on P-Type Crystalline Si Solar Cells

Qi Wang, M. R. Page, Eugene Iwaniczko, Evan Williams, Yanfa Yan, T. H. Wang, T. F. Ciszek

Research output: Contribution to conferencePaperpeer-review

3 Scopus Citations

Abstract

We have developed efficient p-type crystalline-Si-based solar cells using a fast (1 min) and low-substrate temperature (<220°C) hot-wire CVD technique to deposit n-type Si thin films to form n-p junction. We achieved 13.3% energy conversion efficiency with Voc of 0.58 V, FF of 0.773, and Jsc of 29.86 mA/cm2 under AM 1.5 for a 1-cm 2 solar cell, which is the highest repotted efficiency to date for a single-junction device using the hot-wire CVD technique. Transmission electron microscopy reveals epitixal growth of Si at the junction, Quantum efficiency measurement on this solar cell shows over 90% response in the region between 540 and 780 nm, but a relatively weak blue and near infrared response. The solar cells show no degradation after 1000 hours of standard light soaking.

Original languageAmerican English
Pages1427-1430
Number of pages4
StatePublished - 2003
EventProceddings of the 3rd World Conference on Photovoltaic Energy Conversion - Osaka, Japan
Duration: 11 May 200318 May 2003

Conference

ConferenceProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
Country/TerritoryJapan
CityOsaka
Period11/05/0318/05/03

NREL Publication Number

  • NREL/CP-520-34037

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