Effect of CdBr2 on defect state regulation and photoelectric properties of CsPbBr3 perovskite grain boundary

Journal of Lanzhou University of Technology ›› 2021, Vol. 47 ›› Issue (5): 24-29.

• Materials Science and Engineering • Previous Articles Next Articles

Effect of CdBr₂ on defect state regulation and photoelectric properties of CsPbBr₃ perovskite grain boundary

LIU Wen-wu^1,2, LIU Yu-cheng^1,2, CUI Chong-yang^1,2, NIU Sheng-tao^1,2 RAN Fen^1,2, QUE Yu-lun^3,4

1. State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou Univ. of Tech., Lanzhou 730050, China;
2. College of Materials Science and Engineering, Lanzhou Univ. of Tech.,Lanzhou 730050, China;
3. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, China;
4. Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, China

Received:2021-03-17 Online:2021-10-28 Published:2021-11-18

Abstract

Abstract: The effects of different concentrations of isopropanol solution of CdBr₂ on the photoelectric properties of CsPbBr₃perovskite solar cells were studied by passivating CsPbBr₃perovskite films with CdBr₂. The results show that the introduction of CdBr₂ to the surface of CsPbBr₃perovskite, can decreases the density of defects at the surface, suppresses nonradiative recombination and promotes the extraction and diffusion of photogenerated electrons and holes. Therefore, the interface recombination loss is reduced. The photoelectric conversion efficiency of all inorganic CsPbBr₃perovskite solar cell devices were increased from 6.58% to 8.19%, and the V_ocwas increased from 1.368 V to 1.531 V.

Key words: all inorganic perovskite solar cell, CsPbBr₃, defect passivation, PbBr₂

CLC Number:

TB34

LIU Wen-wu, LIU Yu-cheng, CUI Chong-yang, NIU Sheng-tao RAN Fen, QUE Yu-lun. Effect of CdBr₂ on defect state regulation and photoelectric properties of CsPbBr₃ perovskite grain boundary[J]. Journal of Lanzhou University of Technology, 2021, 47(5): 24-29.

References

[1] CHEN T,TONG G,XU E,et al.Accelerating hole extraction by inserting 2D Ti₃C₂-MXene interlayer to all inorganic perovskite solar cells with longterm stability [J].Journal of Materials Chemistry A,2019,7:20597-20603.
[2] KE W,FANG G,LIU Q,et al.Low-temperature solution-processed tin oxide as an alternative electron transporting layer for efficient perovskite solar cells [J].Journal of the American Chemical Society,2015,137(21):6730-6733.
[3] ZUO C,DING L.An 80.11% FF record achieved for perovskite solar cells by using the NH₄Cl additive [J].Nanoscale,2014,6(17):9935-9938.
[4] SHIN S S,YEOME J,YANG W S,et al.Colloidally prepared La-doped BaSnO₃ electrodes for efficient,photostable perovskite solar cells [J].Science,2017,356(6334):167-171.
[5] JIANG Q,ZHAO Y,ZHANG X,et al.Surface passivation of perovskite film for efficient solar cells [J].Nature Photonices,2019,13(7):460-466.
[6] ZUO C,DING L.Bulk heterojunctions push the photoresponse of perovskite solar cells to 970 nm [J].Journal of Materials Chemistry A,2015,3(17):9063-9066.
[7] BUSH A K,PALMSTROM A F,YU Z J,et al.23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability [J].Nature Energy,2017,2(4):1-7.
[8] WU W Q,RUDD P N,NI Z,et al.Reducing surface halide deficiency for efficient and stable Iodide-based perovskite solar cells [J].Journal of the American Chemical Society,2020,142:3989-3996.
[9] ASCHAUER U,PFENNINGER R,SELBACHS M,et al.Strain-controlled oxygen vacancy formation and ordering in CaMnO₃[J].Physical Review B,2018,88,54111.
[10] SAIDAMINOV M I,KIM J,JAIN A,et al.Suppression of atomic vacancies via incorporation of isovalent small ions to increase the stability of halide perovskite solar cells in ambient air [J].Nature Energy,2018,3:648-654.
[11] DING J,ZHAO Y,DUAN J,et al.Alloy-controlled work function for enhanced charge extraction in all-Inorganic CsPbBr₃ perovskite solar cells [J].ChemSusChem,2018,11(9):1432-1437.
[12] ZHU W,ZHANG Z,CHAI W,et al.Benign pinholes in CsPbIBr₂ absorber film enable efficient carbon-based,all-Inorganic perovskite solar cells [J].ACS Applied Energy Materials,2019,2:5254-5262.
[13] ZHAO W,YAO Z,YU F,et al.Alkali metal doping for improved CH₃NH₃PbI₃ perovskite solar cells [J].Advanced Science,2018,5,1700131.
[14] DUAN X,LI X,TAN L,et al.Controlling crystal growth via an autonomously longitudinal scaffold for planar perovskite solar cells [J].Advanced Materials,2020,32:2000617.

Effect of CdBr₂ on defect state regulation and photoelectric properties of CsPbBr₃ perovskite grain boundary

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