Reference : Post-deposition treatment of Cu2ZnSnSe4 with alkalis

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/10993/31812

Title :	Post-deposition treatment of Cu2ZnSnSe4 with alkalis
Language :	English
Author, co-author :	Rey, Germain [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Babbe, Finn [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Weiss, Thomas [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Elanzeery, Hossam [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Melchiorre, Michele [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Valle, Nathalie []
	Brahime, El Adib []
	Siebentritt, Susanne [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Publication date :	14-Nov-2016
Journal title :	Thin Solid Films
Publisher :	Elsevier
Volume :	633
Pages :	162-165
Peer reviewed :	Yes
Audience :	International
Keywords :	[en] Kesterite ; Copper zinc tin selenide ; Sodium ; Potassium ; Post-deposition treatment
Abstract :	[en] Low temperature post-deposition treatment of Cu2ZnSnSe4 with NaF and KF significantly improved the solar cell efficiency (from 6.4% to 7.8% and 7.7% on average, respectively) due to enhanced fill factor (from 0.58 to 0.61 and 0.62), open-circuit voltage (Voc) (from 314 mV to 337 mV and 325 mV) and short-circuit current density (from 35.3 mA⋅cm −2 to 38.3 mA⋅cm −2 and 38.6 mA⋅cm −2). Voc improvement was higher for solar cells with NaF treatment due to an increase in radiative efficiency at room temperature and shallower defect activation energy as determined by photoluminescence (PL) and temperature dependent admittance spectroscopy, respectively. In the case of KF treatment, red-shift of the PL, higher band tail density of state and donor activation energy deeper in the band gap were limiting further improvement of the Voc compared to NaF treatment.
Research centres :	University of Luxembourg Physics and Materials Science Research Unit
Funders :	Fonds National de la Recherche Luxembourg (FNR) under project KITS2 (C11/MS/1202439 – KITS2) and CURI-K (C14/MS/8267152/CURI-K)
Target :	Researchers
Permalink :	http://hdl.handle.net/10993/31812
DOI :	10.1016/j.tsf.2016.11.021
Other URL :	http://www.sciencedirect.com/science/article/pii/S0040609016307350
FnR project :	FnR ; FNR1202439 > Susanne Siebentritt > KITS2 > Kesterite In Thin Film Solar Cells - 2 > 01/07/2012 > 30/06/2015 > 2011

	File(s) associated to this reference
	Fulltext file(s): File Commentary Version Size Access Open access Rey et al. - 2016 - ARTICLE IN PRESS Post-deposition treatment of Cu 2 ZnSnSe 4 with alkalis ଝ.pdf Publisher postprint 1.04 MB View/Open

All documents in ORBi^lu are protected by a user license.

 

University of Luxembourg Library |  Feedback |  Legal notices Site Map