A.-T. Tham, D. S. Su, W. Neumann, P. Schubert-Bischoff, C. Beilharz, K. W. Benz: Transmission Electron Microscopy Study of CuIn<SUB>3</SUB>Se<SUB>5</SUB>

Crystal Research and Technology

Cryst. Res. Technol. 35 (2000) 823 - Abstract -

A.-T. Tham, D. S. Su*, W. Neumann, P. Schubert-Bischoff**, C. Beilharz***, K. W. Benz***

Humboldt University of Berlin, Germany
*Fritz Haber Institute Berlin, Germany
**Hahn Meitner Institute Berlin GmbH, Germany
***University of Freiburg, Germany

Transmission Electron Microscopy Study of CuIn₃Se₅

The off-stoichiometric In-rich phase CuIn₃Se₅ was studied by means of electron diffraction and high resolution electron microscopy. The structural investigations provide unambigouesly a tetragonal structure of this compound which can be derived from the chalcopyrite structure of CuInSe₂. A theoretical model with an ordered occupation of vacancies is discussed for this structure. A detailed comparison between the theoretical model and the experimental archieved one's is revealed.

Keywords: TEM, CuInSe

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