3 years ago

Morphology Controlled n-Type TiO2 and Stoichiometry Adjusted p-Type Cu2ZnSnS4 Thin Films for Photovoltaic Applications

Morphology Controlled n-Type TiO2 and Stoichiometry Adjusted p-Type Cu2ZnSnS4 Thin Films for Photovoltaic Applications
M. N. Satyanarayana, S. Varadharajaperumal, Gopalkrishna Hegde, R. Ganesan, Chinnaiyah Sripan
The photovoltaic devices were developed using the window layer of rutile TiO2 nanoarchitecture arrays, i.e., one-dimensional (1D) nanorods and three-dimensional (3D) combined/hierarchical structures (nanorods with microspheres). One-dimensional nanorods and 3D combined structures of TiO2 window layers were synthesized by a hydrothermal method with different solvents without any assistance of surfactants and templates. This paper presents the fabrication and characterization of stoichiometry adjusted Cu2Zn1.5Sn1.2S4.4 thin film (FTO/TiO2/CdS/CZTS/Au) photovoltaic (PV) devices. It is observed that a TiO2 3D structured PV device shows better efficiency (1.45%) than the nanorods alone structure (0.55%).

Publisher URL: http://dx.doi.org/10.1021/acs.cgd.7b00632

DOI: 10.1021/acs.cgd.7b00632

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