12.4% efficient freestanding 30μm ultra-thin silicon solar cell using a-Si/c-Si heterostructure

Bhumika Chhabra; Robert L. Opila; Christiana Honsberg

doi:10.1109/PVSC.2010.5614352

12.4% efficient freestanding 30μm ultra-thin silicon solar cell using a-Si/c-Si heterostructure

Bhumika Chhabra, Robert L. Opila, Christiana Honsberg

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

With 18 μs bulk lifetime and surface recombination velocity ∼ 84 cm/sec, we demonstrate an improved understanding of surface passivation properties and loss mechanisms in free-standing 30 μm ultra-thin silicon devices. It is demonstrated that even low quality silicon substrates can be used for fabrication of thin silicon solar cells without strict requirements of high bulk minority carrier lifetimes as required in thick solar cells. The use of a-Si/c-Si structure on very thin wafers allows low surface recombination velocities, low temperature processing and reduced structural and electronic interface defects, thus making them ideal for very thin, wafer-based solar cells.

Original language	English (US)
Title of host publication	Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Pages	1325-1329
Number of pages	5
DOIs	https://doi.org/10.1109/PVSC.2010.5614352
State	Published - 2010
Event	35th IEEE Photovoltaic Specialists Conference, PVSC 2010 - Honolulu, HI, United States Duration: Jun 20 2010 → Jun 25 2010

Publication series

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

Other

Other	35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Country/Territory	United States
City	Honolulu, HI
Period	6/20/10 → 6/25/10

ASJC Scopus subject areas

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

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10.1109/PVSC.2010.5614352

Cite this

12.4% efficient freestanding 30μm ultra-thin silicon solar cell using a-Si/c-Si heterostructure. / Chhabra, Bhumika; Opila, Robert L.; Honsberg, Christiana.
Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010. 2010. p. 1325-1329 5614352 (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chhabra, B, Opila, RL & Honsberg, C 2010, 12.4% efficient freestanding 30μm ultra-thin silicon solar cell using a-Si/c-Si heterostructure. in Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010., 5614352, Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1325-1329, 35th IEEE Photovoltaic Specialists Conference, PVSC 2010, Honolulu, HI, United States, 6/20/10. https://doi.org/10.1109/PVSC.2010.5614352

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12.4% efficient freestanding 30μm ultra-thin silicon solar cell using a-Si/c-Si heterostructure

Abstract

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