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Title: Determination of crystal grain orientations by optical microscopy at textured surfaces

Abstract

In this contribution, a new method to determine the crystal orientation with the example of chemical treated silicon wafers by means of optical microscopy has been demonstrated. The introduced procedure represents an easy method to obtain all relevant parameters to describe the crystal structure of the investigated material, i.e., the crystal grain orientation and the grain boundary character. The chemical treatment is a standard mono-texture for solar cells, well known in the solar industry. In general, this concept can also be applied to other crystalline materials, i.e., GaAs, SiC, etc., the only thing that needs to be adjusted is the texturing method to reveal specific crystal planes and the calculation model. In conclusion, an application of this method is shown with the example of the defect classification of recombination active defects in mc-Si solar cell. The introduced method demonstrates a simple and quick opportunity to improve the crystallization process and the quality of electronic devices by means of an optical microscope and a chemical treatment of the material.

Authors:
; ;  [1]
  1. Team Mikrostrukturdiagnostik und Analytik, Fraunhofer-Center für Silizium-Photovoltaik CSP, Walter-Hülse-Straße 1 Halle (Saale), Sachsen-Anhalt D-06120 (Germany)
Publication Date:
OSTI Identifier:
22258752
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 114; Journal Issue: 19; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY; CRYSTAL STRUCTURE; CRYSTALLIZATION; CRYSTALS; ELECTRONIC EQUIPMENT; GALLIUM ARSENIDES; GRAIN BOUNDARIES; GRAIN ORIENTATION; OPTICAL MICROSCOPES; OPTICAL MICROSCOPY; SILICON; SILICON CARBIDES; SOLAR CELLS; SOLAR INDUSTRY

Citation Formats

Lausch, D., Gläser, M., and Hagendorf, C. Determination of crystal grain orientations by optical microscopy at textured surfaces. United States: N. p., 2013. Web. doi:10.1063/1.4832782.
Lausch, D., Gläser, M., & Hagendorf, C. Determination of crystal grain orientations by optical microscopy at textured surfaces. United States. https://doi.org/10.1063/1.4832782
Lausch, D., Gläser, M., and Hagendorf, C. 2013. "Determination of crystal grain orientations by optical microscopy at textured surfaces". United States. https://doi.org/10.1063/1.4832782.
@article{osti_22258752,
title = {Determination of crystal grain orientations by optical microscopy at textured surfaces},
author = {Lausch, D. and Gläser, M. and Hagendorf, C.},
abstractNote = {In this contribution, a new method to determine the crystal orientation with the example of chemical treated silicon wafers by means of optical microscopy has been demonstrated. The introduced procedure represents an easy method to obtain all relevant parameters to describe the crystal structure of the investigated material, i.e., the crystal grain orientation and the grain boundary character. The chemical treatment is a standard mono-texture for solar cells, well known in the solar industry. In general, this concept can also be applied to other crystalline materials, i.e., GaAs, SiC, etc., the only thing that needs to be adjusted is the texturing method to reveal specific crystal planes and the calculation model. In conclusion, an application of this method is shown with the example of the defect classification of recombination active defects in mc-Si solar cell. The introduced method demonstrates a simple and quick opportunity to improve the crystallization process and the quality of electronic devices by means of an optical microscope and a chemical treatment of the material.},
doi = {10.1063/1.4832782},
url = {https://www.osti.gov/biblio/22258752}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 19,
volume = 114,
place = {United States},
year = {Thu Nov 21 00:00:00 EST 2013},
month = {Thu Nov 21 00:00:00 EST 2013}
}