Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 4, Pages 2604-2610Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am405100g
Keywords
CuInS2; microspheres; photovoltaic property; graphene assisted; counter electrodes; power conversion efficiency
Funding
- State Key Program for Basic Research of China [2013CB632705]
- National Natural Science Foundation of China [61290301, 11174002]
- Anhui University
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Spongelike CuInS2 3D microspheres were synthesized through a solvothermal method employing CuCl, InCl3, and thiourea as Cu, In, and S sources, respectively, and PVP as surfactant. The as-prepared products have regular spherical shapes with diameters of 0.8-3.7 mu m, the spheres consisted of small nanosheets, which are composed of small nanoparticles. As an important solar cell material, its photovoltaic property was also tested and the results showed a solar energy conversion efficiency of 3.31%. With the help of reduced graphene, its conversion efficiency could be further increased to 6.18%. Compared with conventional Pt material used in counter electrodes of solar cells, this new material has an advantages of low-cost, facile synthesis and high efficiency with graphene assistance.
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