The influence of high-temperature annealing of electrochemically deposited Cu-Zn-Sn layers on the composition and structure of kesterite films — absorbing layers of solar cells


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Abstract

Cu1−δZn2−xSnxS4 (CZTS) films were prepared by sequential electrochemical deposition on different supports (Ta, Ti, Mo, and glass—Mo). The samples obtained using preliminary annealing in inert nitrogen atmosphere contained a secondary intermetallic phase Cu6Sn5 that did not disappear upon subsequent annealing in reactive sulfur atmosphere at 550 °C for 30 min. The CZTS films prepared without preliminary annealing in inert nitrogen atmosphere contained a minimum amount of secondary phases after the sulfurization step. The samples prepared were characterized by a photovoltaically suitable band gap of 1.5 eV and p-type conductivity.

About the authors

V. V. Rakitin

Institute of Problems of Chemical Physics, Russian Academy of Sciences

Email: gfnovikov@gmail.com
Russian Federation, 1 prosp. Akad. Semenova, Chernogolovka, Moscow Region, 142432

M. V. Gapanovich

Institute of Problems of Chemical Physics, Russian Academy of Sciences

Email: gfnovikov@gmail.com
Russian Federation, 1 prosp. Akad. Semenova, Chernogolovka, Moscow Region, 142432

A. M. Kolesnikova

Institute of Problems of Chemical Physics, Russian Academy of Sciences

Email: gfnovikov@gmail.com
Russian Federation, 1 prosp. Akad. Semenova, Chernogolovka, Moscow Region, 142432

D. M. Sedlovets

Iinstitute of Problems of Microelectronics Technology and High-Purity Materials, Russian Academy of Sciences

Email: gfnovikov@gmail.com
Russian Federation, 6 ul. Akad. Ossipyana, Chernogolovka, Moscow Region, 142432

S. A. Bashkirov

State Scientific and Production Association Scientific-Practical Materials Research Centre, National Academy of Sciences of Belarus

Email: gfnovikov@gmail.com
Belarus, 19 ul. P. Brovki, Minsk, 220072

V. S. Hekkel

State Scientific and Production Association Scientific-Practical Materials Research Centre, National Academy of Sciences of Belarus

Email: gfnovikov@gmail.com
Belarus, 19 ul. P. Brovki, Minsk, 220072

Y. V. Osakovich

State Scientific and Production Association Scientific-Practical Materials Research Centre, National Academy of Sciences of Belarus

Email: gfnovikov@gmail.com
Belarus, 19 ul. P. Brovki, Minsk, 220072

V. F. Gremenok

State Scientific and Production Association Scientific-Practical Materials Research Centre, National Academy of Sciences of Belarus

Email: gfnovikov@gmail.com
Belarus, 19 ul. P. Brovki, Minsk, 220072

G. F. Novikov

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University

Author for correspondence.
Email: gfnovikov@gmail.com
Russian Federation, 1 prosp. Akad. Semenova, Chernogolovka, Moscow Region, 142432; 1 Leninskie Gory, Moscow, 119991

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