In-Ga precursor islands for Cu(In,Ga)Se ₂ micro-concentrator solar cells

Autor: Hagen W. Klemm, Torta Boeck, Thomas Teubner, Martina Schmid, F. Ringleb, Alexander Fuhrich, Thomas Schmidt, K. Eylers, Berit Heidmann, Thomas Unold, Gina Peschel, Sergiu Levcenco
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Popis: We present a bottom-up approach for the fabrication of CuIn x Ga (l-x) Se 2 (CIGSe) micro-concentrator solar cells by local growth of In-Ga micro-islands. In addition to the intended islands, the indium deposition leads to a parasitic indium wetting layer, which was detected by photoelectron emission microscopy (XPEEM). This layer can be removed by a very short and gentle Ar+plasma etching step after indium deposition. The metallic precursor islands were further processed to micro-absorbers and characterized by spatially-resolved photoluminescence measurements for different selenization temperatures. The structural and optoelectronic properties of these absorbers are comparable to those commonly reported for CIGSe films.
Databáze: OpenAIRE