南方科技大学知识苑(SUSTech KC): Single Crystals of Mixed-Cation Copper-Based Perovskite with Trimodal Bandgap Behavior

题名	Single Crystals of Mixed-Cation Copper-Based Perovskite with Trimodal Bandgap Behavior
作者	Elattar, Amr 1,2; Li, Wenhui3,4 ; Suzuki, Hiroo 1; Kambe, Takashi 6; Nishikawa, Takeshi 1; Kyaw, Aung Ko Ko3,4,5 ; Hayashi, Yasuhiko 1
通讯作者	Elattar, Amr; Kyaw, Aung Ko Ko; Hayashi, Yasuhiko
发表日期	2022-03-01
DOI	10.1002/chem.202104316
发表期刊	CHEMISTRY-A EUROPEAN JOURNAL 影响因子和分区
ISSN	0947-6539
EISSN	1521-3765
卷号	28
摘要	Two-dimensional (2D) hybrid perovskites with novel functionalities and structural diversity are a perfect platform for emerging optoelectronic devices such as photodetectors, light-emitting diodes, and solar cells. Here, we demonstrate that excess concentration of Cesium bromide (CsBr) is key to the formation of easily exfoliated 2D Cs2Cu(Cl/Br)(4) perovskite crystal. Furthermore, by employing this trick to 2D perovskite MA(2)Cu(Cl/Br)(4) (MA=methylammonium), we achieve a phase-pure easily exfoliated 2D mixed-cation (MA/Cs)(2)Cu(Cl/Br)(4) perovskite crystal, which exhibits reduced bandgap (1.53 eV) with ferromagnetic behavior and photovoltaic property. The resultant mixed-cation structured device reveals enhanced efficiency compared to all MA and all Cs counterparts. These findings demonstrate the importance of cation-engineering in developing innovative materials with novel properties.
关键词	copper exfoliation mixed cation perovskite solar cells two dimensional
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	通讯
资助项目	National Natural Science Foundation of China[62150610496] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515010916]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000773980700001
出版者	WILEY-V C H VERLAG GMBH
EI入藏号	20221411877774
EI主题词	Bromine compounds ; Cesium compounds ; Copper ; Copper compounds ; Energy gap ; Lead compounds ; Optoelectronic devices ; Perovskite solar cells ; Positive ions ; Single crystals
EI分类号	Minerals:482.2 ; Copper:544.1 ; Solar Cells:702.3 ; Optical Devices and Systems:741.3 ; Crystalline Solids:933.1
ESI学科分类	CHEMISTRY
来源库	Web of Science
引用统计	被引频次[WOS]：0
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/328454
专题	工学院_电子与电气工程系
作者单位	1.Okayama Univ, Grad Sch Nat Sci & Technol, Kita Ku, 3-1-1 Tsushimanaka, Okayama 7008530, Japan 2.Shams Univ, Fac Sci, Dept Chem, Cairo 11566, Egypt 3.Southern Univ Sci & Technol, Guangdong Univ Key Lab Adv Quantum Dot Displays &, Shenzhen 518055, Peoples R China 4.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China 5.Shenzhen Planck Innovat Technol Co Ltd, 8 Liuhe Rd, Shenzhen 518100, Guangdong, Peoples R China 6.Okayama Univ, Dept Phys, Okayama 7008530, Japan
通讯作者单位	南方科技大学; 电子与电气工程系
推荐引用方式 GB/T 7714	Elattar, Amr,Li, Wenhui,Suzuki, Hiroo,et al. Single Crystals of Mixed-Cation Copper-Based Perovskite with Trimodal Bandgap Behavior[J]. CHEMISTRY-A EUROPEAN JOURNAL,2022,28.
APA	Elattar, Amr.,Li, Wenhui.,Suzuki, Hiroo.,Kambe, Takashi.,Nishikawa, Takeshi.,...&Hayashi, Yasuhiko.(2022).Single Crystals of Mixed-Cation Copper-Based Perovskite with Trimodal Bandgap Behavior.CHEMISTRY-A EUROPEAN JOURNAL,28.
MLA	Elattar, Amr,et al."Single Crystals of Mixed-Cation Copper-Based Perovskite with Trimodal Bandgap Behavior".CHEMISTRY-A EUROPEAN JOURNAL 28(2022).