【作者】 孟海凤； 熊利民； 张俊超； 赫英威； 张碧丰； 叶冯俊；

【Author】 Haifeng Meng;Limin Xiong;Junchao Zhang;Yingwei He;Bifeng Zhang;Fengjun Ye;Department of Optics,National Institute of Metrology;

【机构】 中国计量科学研究院；

【摘要】 针对材料组成、光谱响应及规格多样化的新型太阳能电池,例如有机聚合物、钙钛矿、量子点太阳能电池等,开展了其光电转换效率准确测量研究。根据太阳能电池标准测试条件(STC)的定义,效率测量需满足三个条件:AM1.5G光谱,1000W/cm~2辐照度和25℃。本文将从标准量值溯源、光谱失配度及有效辐照度等方面,阐述影响新型太阳能电池效率测量准确度的主要因素。以PTB7-Th/PC71BM有机太阳电池为例,使用不同类型标准太阳电池将导致测量结果相对偏差高达9.3%,见Fig.1。由于目前尚无统一的新型太阳电池测量相关标准,各实验室之间量值来源、测量装置、测量程序和方法等均存在差异,导致一些报道的效率结果偏差大,数据可靠性和可比性不佳。本文将在国内首次提出规范化的准确测量新型太阳电池效率计量技术方法,并给出不确定度分析实例。更多还原

【Abstract】 Aim at new type solar cells, with a variety of material composition, spectral response and specifications, such as organic polymers, perovskite, quantum dot solar cells, etc., we have done researches on the accurate measurement of their photoelectric conversion efficiency. According to the definition of the solar cell’s standardtest conditions(STC), efficiency measurement needs to meet three conditions: the AM1.5G spectrum, the irradiance of 1000W/cm~2 and 25℃. Based on the standard value’s traceability, spectrum mismatch and effective irradiance intensity, etc., this article would illustrate the main factors that influence new solar cells’ efficiency measurement accuracy. PTB7-Th/PC71 BM organic solar cell, for example, by using different kinds of reference solar cells, the relative deviation of efficiency can reach 9.3%(Fig. 1). For the first time, this article will propose a standardized method for new type solar cells’ accurate efficiency measurement, and give an example of uncertainty analysis.更多还原