DICP OpenIR
Synthesis of all-inorganic CsPb2Br5 perovskite and determination of its luminescence mechanism
Li, Jing1; Zhang, Huijie1; Wang, Song2; Long, Debing1; Li, Mingkai1; Guo, Yizhong1; Zhong, Zhicheng1; Wu, Kaifeng3; Wang, Duofa1; Zhang, Tianjin1
Source PublicationRSC ADVANCES
2017
ISSN2046-2069
DOI10.1039/c7ra10693a
Volume7Issue:85Pages:54002-54007
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordLIGHT-EMITTING-DIODES ; SOLAR-CELLS ; HALIDE PEROVSKITES ; STABILITY ; EFFICIENT ; NANOCRYSTALS ; TRANSPORT ; EMISSION ; BROMIDE ; CSPBX3
AbstractAll-inorganic cesium lead halide perovskite materials, such as CsPbBr3 and CsPb2Br5, have drawn immense attention recently due to their potential applications in optoelectronics. However, unlike the extensively-studied CsPbBr3, many of the fundamental properties of CsPb2Br5 remain unclear, such as its electronic structure and photoluminescence (PL) mechanism. In this work, we developed a novel environmentally friendly chemical method to synthesize CsPb2Br5, where only water and ethanol were used as solvents. The optical property and electronic structure of CsPb2Br5 were then examined both experimentally and theoretically. For the first time we found that the band-edge emission of CsPb2Br5 was not in the visible range as reported in the literature but rather located in the ultraviolet range. By monitoring the PL property during phase conversion between CsPb2Br5 and CsPbBr3, we propose that previously-reported visible emission might be due to the involvement of CsPbBr3 during sample preparation. Overall, this study presents a novel green method for the preparation of CsPb2Br5 and clarifies the optical properties and electronic structure of CsPb2Br5.
Language英语
WOS IDWOS:000416831000041
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168383
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang, Duofa; Zhang, Tianjin
Affiliation1.Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Minist Educ,Dept Mat Sci & Engn, Key Lab Green Preparat & Applicat Mat,Hubei Prov, Wuhan 430062, Hubei, Peoples R China
2.Hubei Univ Arts & Sci, Hubei Key Lab Low Dimens Optoelect Mat & Devices, Xiangyang 441053, Hubei, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Li, Jing,Zhang, Huijie,Wang, Song,et al. Synthesis of all-inorganic CsPb2Br5 perovskite and determination of its luminescence mechanism[J]. RSC ADVANCES,2017,7(85):54002-54007.
APA Li, Jing.,Zhang, Huijie.,Wang, Song.,Long, Debing.,Li, Mingkai.,...&Zhang, Tianjin.(2017).Synthesis of all-inorganic CsPb2Br5 perovskite and determination of its luminescence mechanism.RSC ADVANCES,7(85),54002-54007.
MLA Li, Jing,et al."Synthesis of all-inorganic CsPb2Br5 perovskite and determination of its luminescence mechanism".RSC ADVANCES 7.85(2017):54002-54007.
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