能源化学(英文版)

能源化学(英文) ›› 2019, Vol. 28 ›› Issue (7): 12-19.DOI: 10.1016/j.jechem.2018.10.001

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Anti-solvent engineering for efficient semitransparent CH3NH3PbBr3 perovskite solar cells for greenhouse applications

Waqas Siddique Subhania,b, Kai Wanga, Minyong Dua, Xiuli Wanga, Ningyi Yuand, Jianning Dingd, Shengzhong(Frank)Liua,c   

  1. a Dalian National Laboratory for Clean Energy;iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b University of the Chinese Academy of Sciences, Beijing 100039, China;
    c Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China;
    d Jiangsu Key Laboratory for Photovoltaic Engineering and Science, Changzhou University, Changzhou 213164, Jiangsu, China
  • 收稿日期:2018-08-07 修回日期:2018-09-21 出版日期:2019-07-15 发布日期:2019-07-15
  • 通讯作者: Kai Wang, Shengzhong(Frank)Liu
  • 基金资助:
    This work was supported by the National Key Research Program of China (2016YFA0202403), National Nature Science Foundation of China (61674098), the 111 Project (B1404), and Chinese National 1000-Talent-Plan program (Grant No. 111001034).

Anti-solvent engineering for efficient semitransparent CH3NH3PbBr3 perovskite solar cells for greenhouse applications

Waqas Siddique Subhania,b, Kai Wanga, Minyong Dua, Xiuli Wanga, Ningyi Yuand, Jianning Dingd, Shengzhong(Frank)Liua,c   

  1. a Dalian National Laboratory for Clean Energy;iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b University of the Chinese Academy of Sciences, Beijing 100039, China;
    c Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China;
    d Jiangsu Key Laboratory for Photovoltaic Engineering and Science, Changzhou University, Changzhou 213164, Jiangsu, China
  • Received:2018-08-07 Revised:2018-09-21 Online:2019-07-15 Published:2019-07-15
  • Contact: Kai Wang, Shengzhong(Frank)Liu
  • Supported by:
    This work was supported by the National Key Research Program of China (2016YFA0202403), National Nature Science Foundation of China (61674098), the 111 Project (B1404), and Chinese National 1000-Talent-Plan program (Grant No. 111001034).

摘要： With ideal combination of benefits that selectively converts high photon energy spectrum into electricity while transmitting low energy photons for photosynthesis, the CH3NH3PbBr3 perovskite solar cell (BPSC) is a promising candidate for efficient greenhouse based building integrated photovoltaic (BIPV) applications. However, the efficiency of BPSCs is still much lower than their theoretical efficiency. In general, interface band alignment is regarded as the vital factor of the BPSCs whereas only few reports on enhancing perovskite film quality. In this work, highly efficient BPSCs were fabricated by improving the crystallization process of CH3NH3PbBr3 with the assistance of anti-solvents. A new anti-solvent of diphenyl ether (DPE) was developed for its strong interaction with the solvents in the perovskite precursor solution. By using the anti-solvent of DPE, trap-state density of the CH3NH3PbBr3 film is reduced and the electron lifetime is enhanced along with the large-grain crystals compared with the samples from conventional anti-solvent of chlorobenzene. Upon preliminary optimization, the efficiencies of typical and semitransparent BPSCs are improved to as high as 9.54% and 7.51%, respectively. Optical absorption measurement demonstrates that the cell without metal electrode shows 80% transparency in the wavelength range of 550-1000 nm that is perfect for greenhouse vegetation. Considering that the cell absorbs light in the blue spectrum before 550 nm, it offers very high solar cell efficiency with only 17.8% of total photons, while over 60% of total photons can transmit through for photosynthesis if a transparent electrode can be obtained such as indium doped SnO2.

关键词: CH3NH3PbBr3, Semitransparent perovskite solar cell, Anti-solvent, Greenhouse

Abstract: With ideal combination of benefits that selectively converts high photon energy spectrum into electricity while transmitting low energy photons for photosynthesis, the CH3NH3PbBr3 perovskite solar cell (BPSC) is a promising candidate for efficient greenhouse based building integrated photovoltaic (BIPV) applications. However, the efficiency of BPSCs is still much lower than their theoretical efficiency. In general, interface band alignment is regarded as the vital factor of the BPSCs whereas only few reports on enhancing perovskite film quality. In this work, highly efficient BPSCs were fabricated by improving the crystallization process of CH3NH3PbBr3 with the assistance of anti-solvents. A new anti-solvent of diphenyl ether (DPE) was developed for its strong interaction with the solvents in the perovskite precursor solution. By using the anti-solvent of DPE, trap-state density of the CH3NH3PbBr3 film is reduced and the electron lifetime is enhanced along with the large-grain crystals compared with the samples from conventional anti-solvent of chlorobenzene. Upon preliminary optimization, the efficiencies of typical and semitransparent BPSCs are improved to as high as 9.54% and 7.51%, respectively. Optical absorption measurement demonstrates that the cell without metal electrode shows 80% transparency in the wavelength range of 550-1000 nm that is perfect for greenhouse vegetation. Considering that the cell absorbs light in the blue spectrum before 550 nm, it offers very high solar cell efficiency with only 17.8% of total photons, while over 60% of total photons can transmit through for photosynthesis if a transparent electrode can be obtained such as indium doped SnO2.

Key words: CH3NH3PbBr3, Semitransparent perovskite solar cell, Anti-solvent, Greenhouse