Berlin 2015 – scientific programme

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AKE: Arbeitskreis Energie

AKE 1: Photovoltaics

AKE 1.2: Talk

Monday, March 16, 2015, 10:00–10:15, A 151

Computational studies of material properties in CuInSe₂ photovoltaic solar cell material — Laura Oikkonen¹, Maria Ganchenkova², •Ari Paavo Seitsonen^3,4, and Risto Nieminen^1,5 — ¹COMP Centre of Excellence, Department of Applied Physics, Aalto University, Espoo, Finland — ²Department of Materials Science, National Research Nuclear University, Moscow, Russia — ³Institut für Chemie, University of Zürich, Switzerland — ⁴Département de Chimie, École Normale Supérieure, Paris, France — ⁵Dean’s Office, Aalto University, Finland

CuInGaSe₂ (CIGS) is considered as a highly efficient material in thin film solar cells. In recent years we have performed several studies of the properties of the CuInSe₂ (CIS) material, ranging from point defects [1], importance of Se-related defects [2], mass transport in CIS [3], incorporation of Na into CIS [4], and clustering and diffusion of defects [5]. We discuss the relation of our results with the experimental findings and the overall material properties of CIGS.

[1] LE Oikkonen, MG Ganchenkova, AP Seitsonen and RM Nieminen, Journal of Physics: Condensed Matter 23 (2011) 422202

[2] ibid, Physical Review B 86 (2012) 165115

[3] ibid, Journal of Applied Physics 113 (2013) 133510

[4] ibid, Journal of Applied Physics 114 (2013) 083503

[5] ibid, Journal of Physics: Condensed Matter 26 (2014) 345501