Development of textured high-quality Si multicrystal ingots with same grain orientation and large grain sizes by the new dendritic casting method

Kazuo Nakajima, Kozo Fujiwara, Wugen Pan, Masatoshi Tokairin, Yoshitaro Nose, Noritaka Usami

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

2 Citations (Scopus)

Abstract

The dendrite casting method has been developed to constantly obtain high-quality Si multicrystal ingots, on the basis of our new concept to control the grain orientation and grain size. Using this method, textured high-quality Si multicrystal ingots (15cmø) have been grown on the {110} or {112} upper surface of dendrite crystals. So, the Si multicrystal ingots have same grain orientation and quite large grain sizes (≥3cm), and have the longer lifetime more than 35μs without hydrogen passivation. The conversion efficiency of solar cells prepared by the Si multicrystal with the same orientation is found to be higher than that of the solar cell with different orientations. The conversion efficiency of about 17% has been obtained without texture structure and hydrogen passivation. So, this dendritic casting method is very promising in the field of the Si multicrystal solar cells.

Original languageEnglish
Title of host publicationConference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
PublisherIEEE Computer Society
Pages964-967
Number of pages4
ISBN (Print)1424400163, 9781424400164
DOIs
Publication statusPublished - 2006 Jan 1
Event2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4 - Waikoloa, HI, United States
Duration: 2006 May 72006 May 12

Publication series

NameConference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
Volume1

Other

Other2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4
Country/TerritoryUnited States
CityWaikoloa, HI
Period06/5/706/5/12

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

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