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Oriented and Uniform Distribution of Dion-Jacobson Phase Perovskites Controlled by Quantum Well Barrier Thickness
Zheng, YT; Niu, TT; Qiu, J; Chao, LF; Li, BX; Yang, YG; Li, Q; Lin, CQ; Gao, XY; Zhang, CF; Xia, YD; Chen, YH; Huang, W
2019
Source PublicationSOLAR RRL
ISSN2367-198X
Volume3Issue:9Pages:-
Subtype期刊论文
AbstractDion-Jacobson (DJ) phase halide perovskites have attracted extensive attention in photovoltaic devices due to their significantly enhanced stability when compared with conventional 3D analogs. However, fundamental questions concerning the quantum well (QW) barrier thicknesses, which are critical to design efficient DJ phase perovskite photovoltaics, remain unknown. Herein, it is unambiguously demonstrated that QW barrier thickness, depending on bulky organic ammonium spacers with different chain lengths, such as 1.3-propanediamine (PDA), 1.4-butanediamine (BDA), 1.5-pentamethylenediamine (PeDA), and 1.6-hexamethylenediamine (HDA), allows the control of orientation and QW distribution. The DJ phase perovskites based on PDA and BDA have suitable QW barrier thicknesses, which exhibit excellent orientation and more uniform QW distribution, allowing a smooth bandgap transition that leads to longer carrier diffusion length, higher charge mobility, and lower defect density. Conversely, PeDA and HDA, with thicker QW barriers, result in lower orientation and multiple DJ perovskite phases. DJ phase perovskite photovoltaic devices based on PDA and BDA show significantly improved power conversion efficiencies (PCEs) of 14.16% and 16.38% compared with PCEs of 12.95% and 10.55% for PeDA and HDA analogs, respectively.
KeywordSOLAR-CELLS HALIDE PEROVSKITES ELECTRON LENGTHS
DOI10.1002/solr.201900090
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32152
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Nanjing Tech Univ NanjingTech, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, IAM, Key Lab Flexible Elect KLOFE, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China;
2.Hunan First Normal Univ, Lab Coll Phys, Dept Educ Sci, Changsha 410205, Hunan, Peoples R China;
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China;
4.Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China;
5.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China;
6.NPU, SIFE, 127 West Youyi Rd, Xian 710072, Shaanxi, Peoples R China;
7.Nanjing Univ Posts & Telecommun, IAM, KLOEID, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zheng, YT,Niu, TT,Qiu, J,et al. Oriented and Uniform Distribution of Dion-Jacobson Phase Perovskites Controlled by Quantum Well Barrier Thickness[J]. SOLAR RRL,2019,3(9):-.
APA Zheng, YT.,Niu, TT.,Qiu, J.,Chao, LF.,Li, BX.,...&Huang, W.(2019).Oriented and Uniform Distribution of Dion-Jacobson Phase Perovskites Controlled by Quantum Well Barrier Thickness.SOLAR RRL,3(9),-.
MLA Zheng, YT,et al."Oriented and Uniform Distribution of Dion-Jacobson Phase Perovskites Controlled by Quantum Well Barrier Thickness".SOLAR RRL 3.9(2019):-.
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