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Title: Spatially-Resolved Studies of Grain-Boundary Effects in Polycrystalline Solar Cells Using Micro-Photoluminescence and Near-Field Microscopy

Abstract

Photoluminescence and photocurrent spectroscopies combined with diffraction-limited and sub- diffraction-limited spatial resolution are achieved via micro-photoluminescence (m-PL) and near-field microscopy (NSOM). These methods are used to examine the photo-response of individual grain boundaries in thin-film, polycrystalline solar cells at room and cryogenic temperatures. A systematic m-PL study of the effect of CdCl2-treatment on recombination in CdTe/CdS solar cell structures of varying thickness directly reveals the grain-boundary and surface passivation action of this important post-growth processing step. We achieve 50nm (l/10) spatial resolution in near-field Optical Beam Induced Current imaging (n-OBIC) of polycrystalline silicon solar cells using NSOM, at varying stages of silicon nitride grain-boundary passivation, and measure lateral variations in photo-response of CdTe/CdS solar cells with subwavelength spatial resolution.

Authors:
; ; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
860698
Report Number(s):
NREL/CP-590-37037
TRN: US200524%%249
DOE Contract Number:  
AC36-99-GO10337
Resource Type:
Conference
Resource Relation:
Related Information: Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; CRYOGENICS; GRAIN BOUNDARIES; MICROSCOPY; PASSIVATION; PHOTOCURRENTS; PHOTOLUMINESCENCE; PROCESSING; RECOMBINATION; SILICON NITRIDES; SILICON SOLAR CELLS; SOLAR CELLS; SPATIAL RESOLUTION; THICKNESS; SOLAR ENERGY; PV; SPATIALLY RESOLUTION; PHOTOCURRENT SPECTROSCOPIC; DIFFRACTION-LIMITED; SUB- DIFFRACTION-LIMITED; VIA MICRO-PHOTOLUMINESCENCE (M-PL); NEAR-FIELD MICROSCOPY (NSOM); GRAIN BOUNDARY; POLYCRYSTALLINE SILICON; Basic Sciences; Solar Energy - Photovoltaics; Solid State Spectroscopy

Citation Formats

Smith, S, Dhere, R, Gessert, T, Stradins, P, and Mascarenhas, A. Spatially-Resolved Studies of Grain-Boundary Effects in Polycrystalline Solar Cells Using Micro-Photoluminescence and Near-Field Microscopy. United States: N. p., 2005. Web.
Smith, S, Dhere, R, Gessert, T, Stradins, P, & Mascarenhas, A. Spatially-Resolved Studies of Grain-Boundary Effects in Polycrystalline Solar Cells Using Micro-Photoluminescence and Near-Field Microscopy. United States.
Smith, S, Dhere, R, Gessert, T, Stradins, P, and Mascarenhas, A. Sat . "Spatially-Resolved Studies of Grain-Boundary Effects in Polycrystalline Solar Cells Using Micro-Photoluminescence and Near-Field Microscopy". United States. https://www.osti.gov/servlets/purl/860698.
@article{osti_860698,
title = {Spatially-Resolved Studies of Grain-Boundary Effects in Polycrystalline Solar Cells Using Micro-Photoluminescence and Near-Field Microscopy},
author = {Smith, S and Dhere, R and Gessert, T and Stradins, P and Mascarenhas, A},
abstractNote = {Photoluminescence and photocurrent spectroscopies combined with diffraction-limited and sub- diffraction-limited spatial resolution are achieved via micro-photoluminescence (m-PL) and near-field microscopy (NSOM). These methods are used to examine the photo-response of individual grain boundaries in thin-film, polycrystalline solar cells at room and cryogenic temperatures. A systematic m-PL study of the effect of CdCl2-treatment on recombination in CdTe/CdS solar cell structures of varying thickness directly reveals the grain-boundary and surface passivation action of this important post-growth processing step. We achieve 50nm (l/10) spatial resolution in near-field Optical Beam Induced Current imaging (n-OBIC) of polycrystalline silicon solar cells using NSOM, at varying stages of silicon nitride grain-boundary passivation, and measure lateral variations in photo-response of CdTe/CdS solar cells with subwavelength spatial resolution.},
doi = {},
url = {https://www.osti.gov/biblio/860698}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {1}
}

Conference:
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