-
溶液法制备钙钛矿多晶薄膜过程中，不仅使用有毒溶剂配置前驱液，而且热处理仍是诱导钙钛矿晶粒生长的主要途径，这项工艺会增加能耗，还阻碍柔性电池的发展。为消除有毒溶剂的使用和高温处理，本文通过低温溶液加工CsPbBr3纳晶薄膜获得相应的多晶薄膜，应用到太阳电池中。首先热注入法制备CsPbBr3纳米晶(简称纳晶NC)墨汁前驱液，并采用旋涂法制备其纳晶薄膜。大气环境下，CsPbBr3纳晶薄膜经Pb(SCN)2与NH4Br乙酸甲酯饱和溶液处理制备CsPbBr3多晶薄膜，将其作为吸收层制备钙钛矿太阳电池，有效的提高了电池的性能，电池效率达到8.43%。研究表明：Pb(SCN)2与NH4Br乙酸甲酯(MA)饱和溶液不仅可以使得纳晶继续结晶生长，同时还可以有效地钝化钙钛矿薄膜中的缺陷。采用该方法制备CsPbBr3多晶薄膜过程中，既无高温处理，也无高沸点毒性溶剂的使用，同时适用于刚性和柔性电池的制备。Toxic solvents will be used in the process of preparing perovskite polycrystalline films by solution method, and heat treatment is still the main way to induce perovskite grain growth, which will not only increase energy consumption, but also hinder the development of flexible solar cells. In order to eliminate the use of toxic solvents and high temperature process, the corresponding polycrystalline films were obtained by processing CsPbBr3 nanocrystal films by low temperature solution, and applied to solar cells. Firstly, CsPbBr3 nanocrystalline (nanocrystalline NC) ink precursor was prepared by hot injection method, and nanocrystalline film was prepared by spinning coating method. In atmospheric environment, CsPbBr3 nanocrystalline films were prepared by saturated solution of Pb(SCN)2 and NH4Br methyl acetate. The perovskite solar cell was prepared by using it as an absorbing layer, and the performance of the cell was effectively improved, and the efficiency of the cell reached 8.43%. The results show that the saturated solution of Pb(SCN)2 and NH4Br methyl acetate (MA) can not only make nanocrystalline crystallization continue, but also effectively passivate the defects in the perovskite films. In the process of preparing CsPbBr3 polycrystalline films, there is neither high temperature treatment nor the use of high boiling point toxic solvent, and it is suitable for the preparation of rigid and flexible solar cells.
The inorganic halide perovskite nanocrystals were developed and applied as “inks” to fabricate fully air-processed, electrically stable solar cells. Although the prepared film consists of mosaic nanocrystals capped with large amount of organic ligands and surface traps, the method provides a new pathway for single-step, large-scale fabrication of inorganic perovskite devices. Moreover, the flexible control of the material composition provides a platform to uncover the optimal conditions for optoelectronics and photonics.-
Keywords:
- CsPbBr3 /
- nanocrystalline /
- polycrystalline /
- perovskite solar cells
-
[1] Bai W H, Xuan T T, Zhao H Y, Dong H R, Xie R J 2023 Adv. Mater. 35 2302283
[2] Zhang J X, Zhang G Z, Su P Y, Huang R, Lin J G, Wang W R, Pan Z X, Rao H S 2023 Angew. Chem. Int. Ed. 62 e202303486
[3] Xu T F, Xiang W C, Yang J J, J. Kubicki D, Tress W G, Chen T, Fang Z M, Liu Y L, Liu S Z 2023 Adv. Mater. 35 2303346
[4] Zhang X S, Wang Q, Jin Z W, Zhang J R, Liu S Z 2017 Nanoscale 9 6278
[5] Chen Y, Li F Q 2024 Acta Energiae Solaris Sinica,45 123 (in Chinese) [陈莹，李富强 2024 太阳能学报 45 123]
[6] Wang Y H, Zheng W, Ji H, Shen D P, Zhang Y H, Han Y K, Gao J W, Qiang L, Liu H, Han L, Zhang Y 2021 Adv. Mater. Interfaces 8 2100279
[7] Zhou Q W, Duan J L, Du J, Guo Q Y, Zhang Q Y, Yang X Y, Duan Y Y, Tang Q W 2021 Adv. Sci. 8 2101418
[8] Feng S N, Qin Q L, Han X P, Zhang C F, Wang X Y, Yu T, Xiao M 2022 Adv. Mater. 34 2106278
[9] Zhang X S, Jin Z W, Zhang J R, Bai D L, Bian H, Wang K, Wang Q, Liu S Z 2018 ACS Appl. Mater. Interfaces 10 7145
[10] Lin H, Wei Q, Ng KW, Dong J Y, Li J L, Liu W W, Yan S S, Chen S, Xing G C, Tang X S, Tang Z K, Wang S P 2021 Small 17 2101359
[11] Sun J Y, Zhao X, Si H N, Gao F F, Zhao B, Ouyang T, Li Q, Liao Q L, Zhang Y 2023 Adv. Opt. Mater. 11 2202877
[12] Yang M L, Zou L, Cheng J J, Wang J M, Jiang Y F, Hao H Y, Xing J, Liu H, Fan Z J, Dong J 2023 Acta Phys. Sin. 72 168101 (in Chinese) [羊美丽，邹丽，程佳杰，王佳明，江钰帆，郝会颖，邢杰，刘昊，樊振军，董敬敬2023 物理学报72 168101]
[13] Xie G X, Li Q L, Lu X C, Li L T 2024 ACS Photonics, https://doi.org/10.1021/acsphotonics.4c00774
[14] Mali S S, Patil J V, Shao J Y, Zhong Y W, Rondiya S R, Dzade N Y, Hong C K 2023 Nat. Energy 8 989
[15] Beal R E, Slotcavage D J, Leijtens T, Bowring A R, Belisle R A, Nguyen W H, Burkhard G F, Hoke E T 2016 J. Phys. Chem. Lett. 7 746
[16] Zhang S J, Guo R, Zeng H P, Zhao Y, Liu X Y, You S, Li M, Luo L, Lira-Cantu M, Li L, Liu F X, Zheng X, Liao G L, Li X 2022 Energy Environ. Sci. 5 244-253
[17] Li M H, Jiao B X, Peng Y C, Zhou J J, Tan L G, Ren N Y, Ye Y R, Liu Y, Yang Y, Chen Y, Ding L M, Yi C Y 2024 Adv. Mater. 2406532 https://doi.org/10.1002/adma.202406532
[18] Hailegnaw B, Demchyshyn S, Putz C, Lehner L E, Mayr F, Schiller D, Pruckner R, Cobet M, Ziss D, Krieger T M, Rastelli A, Sariciftci N S, Scharber M C, Kaltenbrunner M 2024 Nat. Energy 9 677
[19] Chin X Y, Turkay D, Steele J A, Tabean S, Eswara S, Mensi M, Fiala P, Wolff C M, Paracchino A, Artuk K, Jacobs D, Guesnay Q, Sahli F, Andreatta G, Boccard M, Jeangros Q, Ballif C 2023 Science 381 59
[20] Liang Z, Zhang Y, Xu H, Chen W, Liu B, Zhang J, Zhang H, Wang Z, Kang D H, Zeng J, Gao X, Wang Q, Hu H, Zhou H, Cai X, Tian X, Reiss P, Xu B, Kirchartz T, Xiao Z, Dai S, Park NG, Ye J, Pan X 2023 Nature 624 557
[21] Doolin A J, Charles R G, De Castro C S P, Garcia Rodriguez R, Vincent Péan E, Rahul P, Dunlop T, Charbonneau C, Watson T, Lloyd Davies M 2021 Green Chem 23 2471
[22] Zhang X S, Cao Y, Feng J S, Liu S Z 2024 Solar RRL 8 20230087
[23] Shi W B, Zhang X, Chen H S, Matras-Postolek K, Yang P 2022 J. Mater. Chem. C. 10 13117
[24] Ma J J, Qin M C, Li P W, Han L Y, Zhang Y Q, Song Y L 2022 Energy Environ. Sci. 15 413
[25] Jia D L, Chen J X, Mei X Y, Fan W T, Luo S, Yu M, Liu J H, Zhang X L 2021 Energy Environ. Sci. 14 4599
[26] Liu H, Worku M, Mondal A, Blessed Shonde T, Chaaban M, Ben-Akacha A, Lee S J, Gonzalez F, Olasupo O, Lin X S, Raaj Vellore Winfred J S, Xin Y, Lochner E, Ma B W 2023 Adv. Energy Mater. 13 2201605
[27] Zhao C, Li Y K, Ye W G, Shen X F, Wen Z C, Yuan X Y, Cao Y G, Ma C Y 2022 Adv. Opt. Mater. 10 2102200
[28] Christopher B M 2009 Science 324 1276
[29] Liao C H, Chen C H, Bing J M, Bailey C, Lin Y T, Pandit T M, Granados L, Zheng J H, Tang S, Lin B H, Yen H W, McCamey Dane R, Kennedy Brendan J, Chueh C C, Ho-Baillie Anita W Y 2022 Adv. Mater. 34 2104782
[30] Yan N, Cao Y, Jin Z W, Liu Y C, Liu S Z, Fang Z M, Feng J S 2024 Adv. Mater. 36 2403682
[31] Wang H, Zheng D X, Jiang X, Cao Y X, Du M Y, Wang K, Liu S Z, Zhang C F 2024 Acta Phys. Sin. 73 078401 (in Chinese) [王辉，郑德旭，姜箫，曹越先，杜敏永，王开，刘生忠，张春福 2024 物理学报 73 078401]
[32] Song J Z, Cui Q Z, Li J H, Xu J Y, Wang Y, Xu L M, Xue J, Dong Y H, Tian T, Sun H D, Zeng H B 2017 Adv. Opt. Mater. 5 1700157
计量
- 文章访问数: 45
- PDF下载量: 0
- 被引次数: 0
下载:
