Title:
PREPARATION METHOD FOR SODIUM AND COPPER CO-DOPED CESIUM-LEAD-BROMINE PEROVSKITE QUANTUM DOTS, PRODUCT THEREOF AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/197435
Kind Code:
A1
Abstract:
The present invention relates to the technical field of perovskite quantum dot modification research, and in particular, to a preparation method for sodium and copper co-doped cesium-lead-bromine perovskite quantum dots, a product thereof and an application thereof. Disclosed is a preparation method for sodium and copper co-doped cesium-lead-bromine (CsPbBr3) perovskite quantum dots, which are prepared by reaction of lead bromide (PbBr2), oleic acid (OA), oleylamine (OAm), a sodium ion precursor and a copper ion precursor in octadecene (ODE). Copper ions (Cu2+) and sodium ions (Na+) are co-doped with A and B double-lattice substituted cesium-lead-bromine (CsPbBr3) perovskite fluorescent quantum dots. The finally prepared product is effectively improved in terms of photoluminescence quantum yield, thermal stability and the like, can be used as an active layer to package an electroluminescent diode, and realizes transition from green light to blue light by means of electroluminescence based on recombination of doping ions and excitons.
Inventors:
ZHOU XIANJU (CN)
SHAO ZHONGXIANG (CN)
ZHANG JIE (CN)
CHANG QIANYANG (CN)
LI LI (CN)
XIANG GUOTAO (CN)
JIANG SHA (CN)
LI JINGFANG (CN)
XIE GUANGXIN (CN)
SHAO ZHONGXIANG (CN)
ZHANG JIE (CN)
CHANG QIANYANG (CN)
LI LI (CN)
XIANG GUOTAO (CN)
JIANG SHA (CN)
LI JINGFANG (CN)
XIE GUANGXIN (CN)
Application Number:
PCT/CN2022/098630
Publication Date:
October 19, 2023
Filing Date:
June 14, 2022
Export Citation:
Assignee:
UNIV CHONGQING POSTS & TELECOM (CN)
International Classes:
C09K11/66; B82Y20/00; B82Y30/00; B82Y40/00; H01L33/50
Foreign References:
| CN114605996A | 2022-06-10 | |||
| CN106010518A | 2016-10-12 | |||
| CN109796976A | 2019-05-24 | |||
| CN114591739A | 2022-06-07 | |||
| CN111410957A | 2020-07-14 | |||
| CN113072938A | 2021-07-06 |
Other References:
BI CHENGHAO, WANG SHIXUN, LI QIANG, KERSHAW STEPHEN V., TIAN JIANJUN, ROGACH ANDREY L.: "Thermally Stable Copper(II)-Doped Cesium Lead Halide Perovskite Quantum Dots with Strong Blue Emission", JOURNAL OF PHYSICAL CHEMISTRY LETTERS, AMERICAN CHEMICAL SOCIETY, US, vol. 10, no. 5, 7 March 2019 (2019-03-07), US , pages 943 - 952, XP093098761, ISSN: 1948-7185, DOI: 10.1021/acs.jpclett.9b00290
LI SEN, SHI ZHIFENG, ZHANG FEI, WANG LINTAO, MA ZHUANGZHUANG, YANG DONGWEN, YAO ZHIQIANG, WU DI, XU TING-TING, TIAN YONGTAO, ZHANG: "Sodium Doping-Enhanced Emission Efficiency and Stability of CsPbBr 3 Nanocrystals for White Light-Emitting Devices", CHEMISTRY OF MATERIALS, AMERICAN CHEMICAL SOCIETY, US, vol. 31, no. 11, 11 June 2019 (2019-06-11), US , pages 3917 - 3928, XP093098766, ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.8b05362
SHI WENBIN, ZHAO YUBIN, XIE CONG, YANG PING: "Na-doping CsPbBr3 quantum dots prepared via ion exchange for bright and stable blue-to-red photoluminescence", JOURNAL OF LUMINESCENCE, ELSEVIER BV NORTH-HOLLAND, NL, vol. 233, 1 May 2021 (2021-05-01), NL , pages 117886, XP093098768, ISSN: 0022-2313, DOI: 10.1016/j.jlumin.2021.117886
HUANG YI, TANG PENGFEI, ZHANG WENXIA, YAN WENSHENG, LIU BIN, TANG XIAOSHENG, WANG ZHEN, PENG YUE, CHEN WEIWEI: "Sodium doping for enhanced performance by highly efficient CsPbBr 3 quantum dot-based electroluminescent light-emitting diodes", JOURNAL OF MATERIALS CHEMISTRY C, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 10, no. 10, 10 March 2022 (2022-03-10), GB , pages 3729 - 3737, XP093098772, ISSN: 2050-7526, DOI: 10.1039/D1TC05997A
LI SEN, SHI ZHIFENG, ZHANG FEI, WANG LINTAO, MA ZHUANGZHUANG, YANG DONGWEN, YAO ZHIQIANG, WU DI, XU TING-TING, TIAN YONGTAO, ZHANG: "Sodium Doping-Enhanced Emission Efficiency and Stability of CsPbBr 3 Nanocrystals for White Light-Emitting Devices", CHEMISTRY OF MATERIALS, AMERICAN CHEMICAL SOCIETY, US, vol. 31, no. 11, 11 June 2019 (2019-06-11), US , pages 3917 - 3928, XP093098766, ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.8b05362
SHI WENBIN, ZHAO YUBIN, XIE CONG, YANG PING: "Na-doping CsPbBr3 quantum dots prepared via ion exchange for bright and stable blue-to-red photoluminescence", JOURNAL OF LUMINESCENCE, ELSEVIER BV NORTH-HOLLAND, NL, vol. 233, 1 May 2021 (2021-05-01), NL , pages 117886, XP093098768, ISSN: 0022-2313, DOI: 10.1016/j.jlumin.2021.117886
HUANG YI, TANG PENGFEI, ZHANG WENXIA, YAN WENSHENG, LIU BIN, TANG XIAOSHENG, WANG ZHEN, PENG YUE, CHEN WEIWEI: "Sodium doping for enhanced performance by highly efficient CsPbBr 3 quantum dot-based electroluminescent light-emitting diodes", JOURNAL OF MATERIALS CHEMISTRY C, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 10, no. 10, 10 March 2022 (2022-03-10), GB , pages 3729 - 3737, XP093098772, ISSN: 2050-7526, DOI: 10.1039/D1TC05997A
Attorney, Agent or Firm:
TIDYTEND INTELLECTUAL PROPERTY LAW FIRM (CN)
Download PDF: