Pure room temperature phosphorescence emission of an organic host-guest doped system with a quantum efficiency of 64%

Xiaoqing Liu; Wenbo Dai; Junjie Qian; Yunxiang Lei; Miaochang Liu; Zhengxu Cai; Xiaobo Huang; Huayue Wu; Yuping Dong

doi:10.1039/d1tc00403d

Pure room temperature phosphorescence emission of an organic host-guest doped system with a quantum efficiency of 64%

Xiaoqing Liu, Wenbo Dai, Junjie Qian, Yunxiang Lei^*, Miaochang Liu, Zhengxu Cai, Xiaobo Huang, Huayue Wu, Yuping Dong

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

A new doped system with pure phosphorescent emission is constructed using four 1-(4-(diphenylamino)phenyl)-2-phenylethan-1-one derivatives containing halogen atoms as the guests and benzophenone as the host. That is, the doped system has only phosphorescence emission while almost no fluorescence emission and the phosphorescence quantum efficiency reaches up to 64%. Moreover, the ISC efficiency of excitons can be adjusted by changing the excitation wavelength, so the doped materials can selectively emit green phosphorescence or cyan fluorescence.

Original language	English
Pages (from-to)	3391-3395
Number of pages	5
Journal	Journal of Materials Chemistry C
Volume	9
Issue number	10
DOIs	https://doi.org/10.1039/d1tc00403d
Publication status	Published - 14 Mar 2021

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title = "Pure room temperature phosphorescence emission of an organic host-guest doped system with a quantum efficiency of 64%",

abstract = "A new doped system with pure phosphorescent emission is constructed using four 1-(4-(diphenylamino)phenyl)-2-phenylethan-1-one derivatives containing halogen atoms as the guests and benzophenone as the host. That is, the doped system has only phosphorescence emission while almost no fluorescence emission and the phosphorescence quantum efficiency reaches up to 64%. Moreover, the ISC efficiency of excitons can be adjusted by changing the excitation wavelength, so the doped materials can selectively emit green phosphorescence or cyan fluorescence.",

author = "Xiaoqing Liu and Wenbo Dai and Junjie Qian and Yunxiang Lei and Miaochang Liu and Zhengxu Cai and Xiaobo Huang and Huayue Wu and Yuping Dong",

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doi = "10.1039/d1tc00403d",

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T1 - Pure room temperature phosphorescence emission of an organic host-guest doped system with a quantum efficiency of 64%

AU - Liu, Xiaoqing

AU - Dai, Wenbo

AU - Qian, Junjie

AU - Lei, Yunxiang

AU - Liu, Miaochang

AU - Cai, Zhengxu

AU - Huang, Xiaobo

AU - Wu, Huayue

AU - Dong, Yuping

PY - 2021/3/14

Y1 - 2021/3/14

N2 - A new doped system with pure phosphorescent emission is constructed using four 1-(4-(diphenylamino)phenyl)-2-phenylethan-1-one derivatives containing halogen atoms as the guests and benzophenone as the host. That is, the doped system has only phosphorescence emission while almost no fluorescence emission and the phosphorescence quantum efficiency reaches up to 64%. Moreover, the ISC efficiency of excitons can be adjusted by changing the excitation wavelength, so the doped materials can selectively emit green phosphorescence or cyan fluorescence.

AB - A new doped system with pure phosphorescent emission is constructed using four 1-(4-(diphenylamino)phenyl)-2-phenylethan-1-one derivatives containing halogen atoms as the guests and benzophenone as the host. That is, the doped system has only phosphorescence emission while almost no fluorescence emission and the phosphorescence quantum efficiency reaches up to 64%. Moreover, the ISC efficiency of excitons can be adjusted by changing the excitation wavelength, so the doped materials can selectively emit green phosphorescence or cyan fluorescence.

UR - http://www.scopus.com/inward/record.url?scp=85102920234&partnerID=8YFLogxK

U2 - 10.1039/d1tc00403d

DO - 10.1039/d1tc00403d

M3 - Article

AN - SCOPUS:85102920234

SN - 2050-7526

VL - 9

SP - 3391

EP - 3395

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 10

ER -

Pure room temperature phosphorescence emission of an organic host-guest doped system with a quantum efficiency of 64%

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