两步加热法制备锌黄锡矿Cu2ZnSnS4纳米晶
Preparation of Kesterite Cu2ZnSnS4 Nanocrystals by Two-Step Heating
DOI: 10.12677/AMC.2018.63006, PDF,    国家自然科学基金支持
作者: 孙淑红, 青红梅, 朱 艳*：昆明理工大学，云南 昆明；胡永茂：大理大学，云南 大理
关键词: 锌黄锡矿；铜锌锡硫；两步加热；Kesterite； CZTS； Two-Step Heating
摘要: 本文以乙二醇(EG)为溶剂，采用简单的两步加热法成功在非真空条件下制备了锌黄锡矿Cu2ZnSnS4 (K-CZTS)纳米晶并采用XRD，SEM及紫外可见光谱表征了合成样品的结构、形貌及光学性质。结果表明获得的样品为边长约100~150 nm的四方结构K-CZTS。紫外–可见(UV-vis)分光光度法测量表明，所合成的CZTS的带隙能量为1.51 eV，与薄膜太阳电池的最佳直接带隙1.5 eV十分接近。
Abstract: With ethylene glycol (EG) as a solvent, a simple two-step heating method was successfully devel-oped to prepare the kesterite Cu2ZnSnS4 (K-CZTS) nanocrystals under open air condition. XRD, SEM and UV-vis spectrum were employed to characterize the as-synthesized samples. The results displayed that the as-obtained products are tetragonal K-CZTS nanocrystals with a side length of 100~150 nm. Ultraviolet-visible (UV-vis) spectrophotometry measurement shows that the band-gap energy of the as-synthesized CZTS was 1.51 eV, matching well with the optimal direct band gap of 1.5 eV.
文章引用：孙淑红, 青红梅, 胡永茂, 朱艳. 两步加热法制备锌黄锡矿Cu2ZnSnS4纳米晶[J]. 材料化学前沿, 2018, 6(3): 51-55. https://doi.org/10.12677/AMC.2018.63006

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