Effect of magnesium incorporation on solution-processed kesterite solar cells
Entity
UAM. Departamento de Física AplicadaPublisher
Frontiers MediaDate
2018-01-26Citation
10.3389/fchem.2018.00005
Frontiers in Chemistry 6 (2018): article 5
ISSN
2296-2646 (online)DOI
10.3389/fchem.2018.00005Funded by
This work was supported by the Framework 7th program under the project KESTCELLS (FP7-PEOPLE-2012-ITN-316488), Spanish Ministry of Education, Culture and Sport within the José Castillejo program (CAS 15/00070) and MINECO projectWINCOST (ENE2016-80788-C5-2-R). RC acknowledges financial support from Spanish MINECO within the Ramón y Cajal program (RYC-2011-08521)Project
info:eu-repo/grantAgreement/EC/FP7/316488; Gobierno de España. ENE2016-80788-C5-2-REditor's Version
http://doi.org/10.3389/fchem.2018.00005Subjects
Kesterite; Mg; Solution processing; Structural defects; Thin film solar cells; FísicaRights
© 2018 Caballero, Haass, Andres, Arques, Oliva, Izquierdo-Roca and RomanyukAbstract
The introduction of the alkaline-earth element Magnesium (Mg) into Cu 2 ZnSn(S,Se) 4 (CTZSSe) is explored in view of potential photovoltaic applications. Cu 2 Zn 1-x Mg x Sn(S,Se) 4 absorber layers with variable Mg content x = 0...1 are deposited using the solution approach with dimethyl sulfoxide solvent followed by annealing in selenium atmosphere. For heavy Mg alloying with x = 0.55...1 the phase separation into Cu 2 SnSe 3 , MgSe 2 , MgSe and SnSe 2 occurs in agreement with literature predictions. A lower Mg content of x = 0.04 results in the kesterite phase as confirmed by XRD and Raman spectroscopy. A photoluminescence maximum is red-shifted by 0.02 eV as compared to the band-gap and a carrier concentration N CV of 1 × 10 16 cm -3 is measured for a Mg-containing kesterite solar cell device. Raman spectroscopy indicates that structural defects can be reduced in Mg-containing absorbers as compared to the Mg-free reference samples, however the best device efficiency of 7.2% for a Mg-containing cell measured in this study is lower than those frequently reported for the conventional Na doping
Files in this item
Google Scholar:Caballero, Raquel
-
Haass, Stefan G.
-
Andres, Christian
-
Arques, Laia
-
Oliva, Florian
-
Izquierdo-Roca, Victor
-
Romanyuk, Yaroslav E.
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.
-
The importance of back contact modification in Cu2ZnSnSe4 solar cells: The role of a thin MoO2 layer
López-Marino, S.; Espíndola-Rodríguez, M.; Sánchez, Y.; Alcobé, X.; Oliva, Florian; Xie, H.; Neuschitzer, M.; Giraldo, S.; Placidi, M.; Caballero, Raquel; Izquierdo-Roca, V.; Pérez-Rodríguez, A.; Saucedo, E.
2016-08-01