发光学报, 2017, 38 (4): 442, 网络出版: 2017-05-03
ZnO∶(Al, Sm)阻挡层薄膜的制备及其光电性能
Preparation and Photoelectric Property of ZnO∶(Al, Sm) Block Films
摘要
采用溶胶凝胶法制备ZnO∶Al,Sm阻挡层薄膜, 并用X射线衍射仪(XRD)、能谱仪(EDS)、红外光谱(FTIR)、荧光光谱(PL)、紫外可见光谱(UV-Vis)和扫描电子显微镜(SEM)等对阻挡层薄膜进行了表征, 探讨了Al、Sm掺杂量对阻挡层薄膜性能的影响。结果表明: 当Al的掺杂摩尔分数为1%、Sm的掺杂摩尔分数为3%时, 所制备的阻挡层荧光强度最高, 可将部分紫外光下转换为588 nm的可见光, 拓宽了光谱响应范围; 基于ZnO∶1%Al,3%Sm阻挡层的海胆棘壳色素敏化的纳米TiO2太阳能电池的开路电压为0.73 V, 短路电流密度为0.68 mA/cm2, 转换效率达0.33%, 效率比基于ZnO阻挡层的电池提高了约136%。
Abstract
Al and/or Sm doped ZnO block films were prepared by sol-gel method, and characterized by XRD, EDS, FTIR, PL, UV-Vis and SEM to investigate the effects of Al and Sm doping content on the performance. When the doping mole fraction of Al is 1%, and that of Sm is 3%, the photoluminescence intensity of the block film is the highest. The film can down-convert part of ultraviolet light to visible light of 588 nm, which widens the spectra response range. By using ZnO∶Al,Sm down-conversion film and TiO2 (P25) porous absorbing layer, after sensitized by the pigment ethanol solution of spines of sea urchin, the short-circuit current density and open-circuit voltage of the dye sensitized solar cell (DSSC) are 0.68 mA/cm2 and 0.73 V, respectively. And the DSSC achieves the power conversion efficiency of 0.33%, which is increased by 136% compared to the DSSC based on ZnO block layer.
郭伟华, 郝洪顺, 靳闪闪, 张作顺, 刘妍君, 李国辉, 侯红漫, 张公亮. ZnO∶(Al, Sm)阻挡层薄膜的制备及其光电性能[J]. 发光学报, 2017, 38(4): 442. GUO Wei-hua, HAO Hong-shun, JIN Shan-shan, ZHANG Zuo-shun, LIU Yan-jun, LI Guo-hui, HOU Hong-man, ZHANG Gong-liang. Preparation and Photoelectric Property of ZnO∶(Al, Sm) Block Films[J]. Chinese Journal of Luminescence, 2017, 38(4): 442.