一步法制备高效TiO_(2)/PbS异质结量子点太阳电池  

PREPARATION OF HIGH EFFICIENCY TIO_(2)/PBS QUANTUM DOT HETEROJUNCTION SOLAR CELLS BY SINGLE-STEP METHOD

作　　者：邢美波 丁宪喆 景栋梁 李子睿 王瑞祥 Xing Meibo;Ding Xianzhe;Jing Dongliang;Li Zirui;Wang Ruixiang(Beijing Engineering Research Centre of Sustainable Energy and Buildings,School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学环境与能源工程学院,北京市建筑能源高效综合利用工程技术中心,北京100044

出　　处：《太阳能学报》2022年第12期19-24,共6页Acta Energiae Solaris Sinica

基　　金：北京市优秀人才培养资助青年骨干个人项目(2018000020124G053);北京建筑大学金字塔人才培养工程建大英才项目(JDYC20200316)。

摘　　要：采用一步涂层法制备TiO_(2)/PbS异质结且带有不同浓度PbS量子点光吸收层的太阳电池器件。测试结果表明,用浓度为200 mg/mL的PbS量子点制备的太阳电池在AM1.5模拟光照下获得的能量转换效率(PCE)为9.08%,其开路电压(V_(OC))为0.570 V、短路电流(J_(SC))为29.6 mA/cm^(2)、填充因子(FF)为0.539。研究证实了一步法的可行性与可靠性。与传统的层层旋涂法相比,一步涂层法具有操作过程简单、材料消耗少、制备薄膜质量好等优点,可用于大批量制备高效率量子点太阳电池。To fabricate high efficiency quantum dot solar cells,the absorbing p-type PbS quantum dots was prepared on n-type TiO_(2)by simplified single-step spin coating method.In order to confirm the effectiveness of the single-step method and obtain high efficiency devices,QDSCs with two different concentrations of PbS QDs are prepared and their performance is investigated.It is demonstrated that the device with lower QD loading achieved higher power conversion efficiency(PCE)of 9.08%,with open-circuit voltage(V_(OC))of 0.570V,short-circuit current density(J_(SC))of 29.6 mA/cm^(2),fill factor(FF)of 0.539,under simulated AM1.5 solar illuminations.The experiment results verify feasibility and reliability of the single-step method.Compared with traditional layer-by-layer(LBL)method,the single-step method demonstates merits of simpler process,less material consumption,and higher surface quality.Consequently,it is potential to apply single-step for quantum dot solar cell mass production.

关 键 词：太阳电池 半导体量子点 太阳电池效率 一步法 量子点浓度 

分 类 号：TK914[动力工程及工程热物理]