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Impurities in solar-grade silicon

Date

Authors

MacDonald, Daniel

Tan, Jason

Publisher

SPIE - The International Society for Optical Engineering

Abstract

Unintentional impurities can play a significant role in reducing the efficiency of crystalline silicon solar cells. With the advent of low-cost solar-grade silicon feedstocks, this is likely to remain the case well into the future. The purpose of this paper is to review the most important impurities in directionally-solidified ingot-grown multicrystalline silicon, their chemical states, where they come from, and the most commonly used techniques to detect them.

Keywords

Keywords: Crystal growth; Crystal impurities; Ingots; Directionally-solidified; Multicrystalline silicon; Silicon solar cells Metallic impurities; Photovoltaics; Silicon

URI

http://hdl.handle.net/1885/54494

Collections

Open Access Research

Source

Proc. SPIE 6800, Device and Process Technologies for Microelectronics, MEMS, Photonics, and Nanotechnology IV

Type

Conference paper

DOI

10.1117/12.753494

Restricted until

2037-12-31

Downloads

File

Description

01_MacDonald_Impurities_in_solar-grade_2008.pdf (50.78 KB)

02_MacDonald_Impurities_in_solar-grade_2008.pdf (316.61 KB)

03_MacDonald_Impurities_in_solar-grade_2008.pdf (8.09 KB)