Change search
ReferencesLink to record
Permanent link

Direct link
Thin-film ZnO/CdS/CuIn1-xGaxSe2 solar cells: Anomalous physical properties of the CuIn1-xGaxSe2 absorber
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Material Physics.ORCID iD: 0000-0002-9050-5445
2006 (English)In: Brazilian journal of physics, ISSN 0103-9733, Vol. 36, no 3B, 948-951 p.Article in journal (Refereed) Published
Abstract [en]

Thin-film ZnO/CdS/CuIn1-xGaxSe2 solar cells are manufactured with similar to 20% solar-cell conversion efficiency. The CuIn1-xGaxSe2 (CIGS) absorber exhibits rather different physical properties compared with conventional semiconductors (e.g. Si, GaAs and ZnSe). For instance, (i) the valence-band maximum in CIGS consists of cation-d-anion-p hybridized states. (ii) Cation vacancies have low formation energies and high mobility at room temperature. (iii) The most stable surface of CuIn1-xGaxSe2 is the reconstructed, and otherwise polar, (112) surface. (iv) Solar cells with absorbers containing grain-boundaries outperform cells with crystalline absorbers. In this work, the fundamental physical properties of CIGS, like the electronic structure, the defect formation energies, as well as surface properties are discussed from a theoretical perspective.

Place, publisher, year, edition, pages
2006. Vol. 36, no 3B, 948-951 p.
Keyword [en]
solar cells, photovoltaic, absorbers, CuInSe2, surface, interface, defects, grain-boundary
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-16178ISI: 000242535600039ScopusID: 2-s2.0-33845387144OAI: diva2:334220
QC 20100525 QC 20110927. Conference: 12th Latin American Congress of Surface Science and Its Applications (CLACSA-12). Rio de Janeiro, BRAZIL. DEC 05-09, 2005.Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-09-27Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Persson, Clas
By organisation
Applied Material Physics
In the same journal
Brazilian journal of physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 46 hits
ReferencesLink to record
Permanent link

Direct link