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Optoelectronics Letters · 2020 ·Vol. 16 ·期 6 ·401-404 · IF 0

Synthesis and opto-electrical properties of Cu2NiSnS4 nanoparticles using a facile solid-phase process at low temperature

Li Shi-na,Ma Rui-xin,Niu Jian-wen

Cu 2 NiSnS 4 nanoparticles were prepared for the first time using a facile solid-phase process at a temperature of 180°C. The crystalline structure, morphology and optical properties of the Cu 2 NiSnS 4 nanoparticles were characterized by means of X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM) and ultraviolet-visible (UV-vis) spectrophotometer. The band gap and conversion efficiency of Cu 2 NiSnS 4 nanoparticles were studied at various temperature. The results showed that the Cu 2 NiSnS 4 nanoparticles exhibited an optimum band gap of 1.58 eV and a conversion efficiency of 0.64% at 180 °C, indicating that it maybe be useful in low-cost thin film solar cells.

CAS / MDL: 7758-89-6

研究领域: 材料科学 · 能源技术

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NEW JOURNAL OF CHEMISTRY · 2016 ·Vol. 41 ·期 2 ·685-691 · IF 3.277

Fabrication of Cu2MSnS4 (M = Co2+, Ni2+) nanocrystal thin films and their application in photodetectors

Kaisi Liu,Bin Yao,Yongfeng Li,Zhanhui Ding,Zhenyu Xiao,Yuhong Jiang,Gang Wang,Daocheng Pan

Cu2CoSnS4 (CCTS) and Cu2NiSnS4 (CNTS) can be regarded as Cu2ZnSnS4 compounds with the Zn2+ replaced by Co2+ and Ni2+, and are alternative absorber materials in thin film solar cells. Here, we fabricated high-quality CCTS and CNTS nanocrystal thin films by employing the ion substitution strategy. We systematically studied the crystal structures, surface morphologies and compositions of the as-prepared and selenized thin films via X-ray diffractometry (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The selenized CCTS and CNTS films showed an obvious phase separation process for the oxidizing reaction of Co2+ and Ni2+ with high-temperature selenium steam, and then formed Cu2Sn(S,Se)3, Co(S,Se)2 and Ni(S,Se)2 compounds. We successfully fabricated photodetector devices using CCTS and CNTS nanocrystal films, and achieved a strong and reversible photoresponse performance.

研究领域: 材料科学 · 半导体物理 · 薄膜器件 · 光电探测

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Synthesis and opto-electrical properties of Cu2NiSnS4 nanoparticles using a facile solid-phase process at low temperature

Fabrication of Cu2MSnS4 (M = Co2+, Ni2+) nanocrystal thin films and their application in photodetectors