| 热注法合成CuInSe2纳米晶的性能研究 |
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| 引用本文： | 夏冬林,杲皓冉,李云峰,秦可.热注法合成CuInSe2纳米晶的性能研究[J].人工晶体学报,2017,46(10):1907-1912. |
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| 作者姓名： | 夏冬林 杲皓冉 李云峰 秦可 |
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| 作者单位： | 武汉理工大学,硅酸盐建筑材料国家重点实验室,武汉430070 |
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| 基金项目： | 武汉市科技计划项目(2015010101010006)，武汉理工大学优秀硕士学位论文培养基金(2016-YS-013) |
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| 摘 要： | 以氯化亚铜(CuCl)、氯化铟(InCl3·4H2O)作为金属源,溶解在三辛基膦(TOP)中的Se粉作硒源,利用油胺(OLA)作为配体、十八烯作为溶剂,采用热注入法合成出了CuInSe2纳米晶(NCs),研究了反应温度对产物的影响.采用X射线衍射仪(XRD)、透射电子显微镜(TEM)、能谱仪(EDS)和紫外-可见分光光度计(UV-Vis)等测试手段对CuInSe2纳米晶的晶体结构、形貌、化学组分和光学性能进行了表征.实验结果表明:通过调控反应温度合成了具有不同形貌的黄铜矿结构的CuInSe2纳米晶,纳米晶的形貌由三角形或四边形向球形演化,其晶粒平均尺寸为3.71~13.65 nm,其光学带隙Eg在1.75~1.50 eV之间变化.所得到的产物在有机溶剂甲苯中分散性良好,这样的"墨水"溶液在后期制备薄膜太阳能电池更有利.
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| 关 键 词： | CuInSe2纳米晶 热注入法 太阳能电池 |
Characterization of CuInSe2 Nanocrystals Prepared by Hot-injection Method |
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| XIA Dong-lin,GAO Hao-ran,LI Yun-feng,QIN Ke.Characterization of CuInSe2 Nanocrystals Prepared by Hot-injection Method[J].Journal of Synthetic Crystals,2017,46(10):1907-1912. |
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| Authors: | XIA Dong-lin GAO Hao-ran LI Yun-feng QIN Ke |
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| Abstract: | CuInSe2 nanocrystals ( NCs) were synthesized by hot injection method using cuprous chloride (CuCl), indium chloride(InCl3· 4H2O), and selenium powder (Se) dissolving in a trioctylphosphine ( TOP) solution as raw materials and Oleylamine ( OLA ) and octadecylene ( ODE ) as ligand and solvent .Crystal structure , component and optical properties of as-synthesized CuInSe 2 NCs samples were characterized by X-ray diffractometer ( XRD ) , transmission electron microscopy ( TEM ) , energy dispersive spectroscopy ( EDS ) , Ultraviolet-visible spectrophotometer ( UV-vis ) . The influence of different reaction temperatures on the crystal structure , morphology , chemical composition and optical properties of CuInSe 2 was investigated . The results show that the CuInSe 2 NCs possess different morphology with chalcopyrite structure , the morphology of NCs evolve from triangle or quadrangle to sphere.The average grain size is in the range of 3.71-13.65 nm.The band gap of the NCs prepared at different reaction temperatures vary between 1.75 eV and 1.50 eV.Stable"ink"can be formed when the CuInSe 2 nanocrystals are dispersed in the organic solvent such as toluene , and such "ink"might have a practical application in CuInSe 2-based solar cells . |
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| Keywords: | CuInSe 2 nanocrystal hot-injection method solar cell |
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