Effect of sodium addition on Cu2SnS3 thin-film solar cells fabricated on alkali-free glass substrates

被引：14
作者：
Sasagawa, Shohei [1 ]
Nishida, Genki [1 ]
Takeuchi, Akiko [1 ]
Katagiri, Hironori [1 ]
Araki, Hideaki [1 ]
机构：
[1] Nagaoka Coll, Natl Inst Technol, Nagaoka, Niigata 9408532, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 08期
基金：
日本学术振兴会;
关键词：
OPTICAL-PROPERTIES; NA;
D O I：
10.7567/JJAP.57.08RC11
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Cu2SnS3 (CTS) p-type semiconductors are expected to be applied as a light absorption material for low-cost thin-film solar cells due to their advantageous physical properties. The influence of sodium addition to CTS thin films was investigated by comparing Na-free CTS and Na-doped CTS fabricated on alkali-free glass substrates. Grain growth for Na-free CTS, which has a Cu/Sn composition ratio of approximately 2.0, did not occur below 570 degrees C. In contrast, the addition of sodium to the CTS increased the grain sizes with an increase in the annealing temperature. Even with Na-free and Na-doped CTS, the grain sizes increased with a decrease in the Cu/Sn composition ratio. These results show that an excess of Sn combined with the presence of sodium accelerate the grain growth of CTS. Photovoltaic cells using the Na-doped CTS with a Cu/Sn ratio of 1.81 exhibited an open-circuit voltage of 242 mV, a short-circuit current density of 26.5 mA/cm(2), a fill factor of 0.523, and a conversion efficiency of 3.35%. The cells using CTS without sodium did not exhibit good photovoltaic characteristics due to the small grain sizes. (C) 2018 The Japan Society of Applied Physics
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页数：5
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共 30 条
[1]   Preparation and characterization of Cu2SnS3 ternary semiconductor nanostructures via the spray pyrolysis technique for photovoltaic applications [J].
Adelifard, Mehdi ;
Mohagheghi, Mohamad Mehdi Bagheri ;
Eshghi, Hosein .
PHYSICA SCRIPTA, 2012, 85 (03)
[2]   Exciton luminescence from Cu2SnS3 bulk crystals [J].
Aihara, Naoya ;
Matsumoto, Yusuke ;
Tanaka, Kunihiko .
APPLIED PHYSICS LETTERS, 2016, 108 (09)
[3]   Sulfurization temperature dependences of photovoltaic properties in Cu2SnS3-based thin-film solar cells [J].
Aihara, Naoya ;
Kanai, Ayaka ;
Kimura, Kazuki ;
Yamada, Manami ;
Toyonaga, Kotoba ;
Araki, Hideaki ;
Takeuchi, Akiko ;
Katagiri, Hironori .
JAPANESE JOURNAL OF APPLIED PHYSICS, 2014, 53 (05)
[4]   Fabrication of Cu2SnS3 thin films by sulfurization of evaporated Cu-Sn precursors for solar cells [J].
Aihara, Naoya ;
Araki, Hideaki ;
Takeuchi, Akiko ;
Jimbo, Kazuo ;
Katagiri, Hironori .
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 10, NO 7-8, 2013, 10 (7-8) :1086-1092
[5]   Thin film solar cells based on the ternary compound Cu2SnS3 [J].
Berg, Dominik M. ;
Djemour, Rabie ;
Guetay, Levent ;
Zoppi, Guillaume ;
Siebentritt, Susanne ;
Dale, Phillip J. .
THIN SOLID FILMS, 2012, 520 (19) :6291-6294
[6]   Raman analysis of monoclinic Cu2SnS3 thin films [J].
Berg, Dominik M. ;
Djemour, Rabie ;
Guetay, Levent ;
Siebentritt, Susanne ;
Dale, Phillip J. ;
Fontane, Xavier ;
Izquierdo-Roca, Victor ;
Perez-Rodriguez, Alejandro .
APPLIED PHYSICS LETTERS, 2012, 100 (19)
[7]   Growth of Cu2SnS3 thin films by solid reaction under sulphur atmosphere [J].
Bouaziz, M. ;
Ouerfelli, J. ;
Srivastava, S. K. ;
Bernede, J. C. ;
Amlouk, M. .
VACUUM, 2011, 85 (08) :783-786
[8]   Structural and optical properties of Cu2SnS3 sprayed thin films [J].
Bouaziz, M. ;
Amlouk, M. ;
Belgacem, S. .
THIN SOLID FILMS, 2009, 517 (07) :2527-2530
[9]   The influence of Na on low temperature growth of CIGS thin film solar cells on polyimide substrates [J].
Caballero, R. ;
Kaufmann, C. A. ;
Eisenbarth, T. ;
Cancela, M. ;
Hesse, R. ;
Unold, T. ;
Eicke, A. ;
Klenk, R. ;
Schock, H. W. .
THIN SOLID FILMS, 2009, 517 (07) :2187-2190
[10]   Influence of Na in Cu2SnS3 film on its physical properties and photovoltaic performances [J].
Chantana, Jakapan ;
Uegaki, Hikaru ;
Minemoto, Takashi .
THIN SOLID FILMS, 2017, 636 :431-437
123