Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/18814
Title: Surface Cleaning and Passivation Using (NH4)(2)S Treatment for Cu(In,Ga)Se-2 Solar Cells: A Safe Alternative to KCN
Authors: Buffiere, Marie
El Mel, Abdel-Aziz
Lenaers, Nick
BRAMMERTZ, Guy 
Zaghi, Armin E.
MEURIS, Marc 
POORTMANS, Jef 
Issue Date: 2015
Publisher: WILEY-V C H VERLAG GMBH
Source: ADVANCED ENERGY MATERIALS, 5 (6)
Abstract: With the aim of developing a safe alternative to the KCN etchant for the removal of CuxSe secondary phases at the surface of Cu(In,Ga)Se-2 (CIGSe) absorber, a method based on ammonium sulfide (AS) chemical treatment is proposed. Although lower etching rates are observed compared with the KCN reference solution, the AS solution is found to selectively etch CuxSe phases. In addition, it allows modifying the surface chemical state of the CIGSe absorber by incorporation of sulfur. As a consequence, the minority carrier lifetime located close to the surface of the absorber is found to be improved. Furthermore, it is demonstrated that optimizing the AS treatment time induces a remarkable enhancement in the electrical performances of the CIGSe-based solar cells.
Notes: [Buffiere, Marie; Lenaers, Nick; Zaghi, Armin E.; Poortmans, Jef] Imec Partner Solliance, B-3001 Leuven, Belgium. [Buffiere, Marie; Poortmans, Jef] Katholieke Univ Leuven, Dept Elect Engn ESAT, B-3001 Heverlee, Belgium. [El Mel, Abdel-Aziz] Univ Nantes, CNRS, Inst Mat Jean Rouxel, F-44322 Nantes 3, France. [Lenaers, Nick; Zaghi, Armin E.] Katholieke Univ Leuven, Dept Met & Mat Engn MTM, B-3001 Heverlee, Belgium. [Brammertz, Guy; Meuris, Marc] IMOMEC Partner Solliance, Imec Div, B-3590 Diepenbeek, Belgium. [Brammertz, Guy; Meuris, Marc] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium.
Keywords: alternative selective etchants; chemical etching; thin films; secondary phases; solar cells;alternative selective etchants; chemical etching; thin films; secondary phases; solar cells
Document URI: http://hdl.handle.net/1942/18814
ISSN: 1614-6832
e-ISSN: 1614-6840
DOI: 10.1002/aenm.201401689
ISI #: 000351613200010
Category: A1
Type: Journal Contribution
Validations: ecoom 2016
Appears in Collections:Research publications

Show full item record

SCOPUSTM   
Citations

21
checked on Sep 2, 2020

WEB OF SCIENCETM
Citations

25
checked on May 21, 2022

Page view(s)

50
checked on May 19, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.