无机材料学报 ›› 2022, Vol. 37 ›› Issue (2): 204-208.DOI: 10.15541/jim20210167

所属专题: 【能源环境】太阳能电池

• 研究论文 • 上一篇    下一篇

半透明太阳能电池的热力学极限效率研究

吉永记, 刘东, 李强   

  1. 南京理工大学 能源与动力工程学院, 南京210094
  • 收稿日期:2021-03-16 修回日期:2021-06-09 出版日期:2022-02-20 网络出版日期:2021-06-30
  • 作者简介:吉永记(1996-), 男, 硕士研究生. E-mail: 118108010866@njust.edu.cn
  • 基金资助:
    国家自然科学基金(51976090, 51888103); 江苏省自然科学基金(BK20200072); 中央高校基本科研业务费专项资金(30919011403)

Thermodynamic Efficiency Limits of Semitransparent Solar Cells

JI Yongji, LIU Dong, LI Qiang   

  1. School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2021-03-16 Revised:2021-06-09 Published:2022-02-20 Online:2021-06-30
  • Contact: LIU Dong, professor. E-mail: liudong15@njust.edu.cn; LI Qiang, professor. E-mail: liqiang@njust.edu.cn
  • About author:JI Yongji(1996-), male, Master candidate. E-mail: 118108010866@njust.edu.cn
  • Supported by:
    National Natural Science Foundation of China (51976090, 51888103); Natural Science Foundation of Jiangsu Province (BK20200072); Fundamental Research Funds for the Central Universities (30919011403)

摘要: 半透明太阳能电池可充分利用现代建筑的太阳照射面积, 具有广阔的应用前景, 其热力学极限效率是重要的基础问题。本工作将已有研究中用于建筑窗户的无色半透明太阳能电池拓展至可安装于建筑幕墙表面的彩色半透明太阳能电池, 基于细致平衡原理计算其热力学极限效率, 以便更全面地描绘半透明太阳能电池在建筑一体化应用的前景。结果表明, 用于窗户的无色半透明太阳能电池的极限效率为18.1%, 而安装于蓝色建筑幕墙表面的半透明太阳能电池的极限效率高达28.3%, 提升了10个百分点。本研究的彩色半透明太阳能电池扩大了可利用的太阳照射面积, 有望弥补太阳能能量密度低的问题。研究结果可以指导选择合适的半导体材料和设计新材料。

关键词: 半透明太阳能电池, 极限效率, 建筑光伏一体化, 选择性吸收材料

Abstract: Semitransparent photovoltaics (STPV) is a promising solar energy harvesting technology because it can be integrated to harness huge sun-facing areas of modern buildings for electricity generation. Its thermodynamic efficiency limits are of fundamental interest. This work extended the analyses from neutral STPV for building windows to those installed on the surface of colored building envelops according to the principle of detailed balance. Results show that the efficiency limit of STPV for blue building envelops is as high as 28.3%, which represents a 10% absolute enhancement compared to the neutral STPV for building windows (18.1%). These results demonstrate that STPV can be integrated into both windows and envelops of modern buildings, which has the potential to offset the low density of solar energy. This work provides guidelines on the selection and the development of active materials for STPV.

Key words: semitransparent solar cell, efficiency limit, building-integrated photovoltaic, selective-absorption material

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