An exciplex-type thermally activated delayed fluorescence material with wide up-conversion fluorescence excitation window

被引：1

作者：

Du, Huitian ^{[1
]}

Yu, Yuan ^{[1
]}

Zhou, Qian ^{[1
]}

Liu, Chenghao ^{[1
]}

Li, Jing ^{[2
]}

Han, Shenghao ^{[1
]}

Pang, Zhiyong ^{[1
]}

机构：

[1] Shandong Univ, Sch Microelect, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[2] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China

来源：

OPTICAL MATERIALS | 2022年 / 134卷

基金：

中国国家自然科学基金;

关键词：

Exciplex; Thermally activated delayed fluorescence; Two-photon excitation fluorescence; Up-conversion; OPTICAL-PROPERTIES;

D O I：

10.1016/j.optmat.2022.113106

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Exciplexes play an important role in the field of light-emitting materials due to the effective enhancement on fluorescence efficiency through thermally activated delayed fluorescence (TADF) mechanism. This mechanism is also expected to contribute to nonlinear optical applications. Here, we report an exciplex-type TADF material with significant two-photon excited fluorescence (TPEF) properties. It consists of Di-[4-(N,N-di-p-tolyl-amino)-phenyl]cyclohexane (TAPC) as the donor and 1,3,5-Tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) as the acceptor. The TAPC:TPBi film emits blue fluorescence (peaked at similar to 470 nm) under near-infrared excitation. A very wide long-wavelength excitation window of at least 200 nm (660 nm-860 nm) was observed. The reported exciplex material may have the potential to play an important role in the field of one-and two-photon excited fluorescence.

引用

页数：5

共 26 条

[1] INTERACTIONS OF PICOSECOND LASER PULSES WITH ORGANIC-MOLECULES .1. 2-PHOTON FLUORESCENCE QUENCHING AND SINGLET STATES EXCITATION IN RHODAMINE DYES [J].

BRADLEY, DJ ;

NEW, GHC ;

PETTY, MS ;

HUTCHINS.MH ;

MORROW, T ;

KOETSER, H .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1972, 328 (1572) :97-+

[2] Solution-processed white OLEDs with power efficiency over 90 lm W-1 by triplet exciton management with a high triplet energy level interfacial exciplex host and a high reverse intersystem crossing rate blue TADF emitter [J].

Chen, Liang ;

Chang, Yufei ;

Shi, Song ;

Wang, Shumeng ;

Wang, Lixiang .

MATERIALS HORIZONS, 2022, 9 (04) :1299-1308

[3] Efficient organic light-emitting device from exciplex emission between 4,4′ 4"-tris[3-methylphenyl(phenyl)amino] triphenylamine and 2,2′,2"-(1,3,5-benzenetriyl)tris[1-phenyl-1H-benzimidazole] [J].

Chen, SF ;

Wu, ZJ ;

Zhao, Y ;

Li, CN ;

Hou, JY ;

Liu, SY .

ORGANIC ELECTRONICS, 2005, 6 (03) :111-117

[4] Immensely enhanced color-adjustable upconversion fluorescence in electron donoracceptor exciplex chromophores doped with fluorescent emitters [J].

Chen, Zhen ;

Zhou, Qian ;

Du, Huitian ;

Yu, Yuan ;

Zhang, Chuang ;

Han, Shenghao ;

Pang, Zhiyong .

PHOTONICS RESEARCH, 2021, 9 (05) :865-872

[5] Enhanced two-photon-excited fluorescence from electron donor-acceptor exciplex [J].

Chen, Zhen ;

Dai, Chenghu ;

Zhou, Qian ;

Du, Huitian ;

Fan, Jihui ;

Han, Shenghao ;

Zhang, Chuang ;

Pang, Zhiyong .

DYES AND PIGMENTS, 2021, 188

[6] Photophysics of thermally activated delayed fluorescence molecules [J].

Dias, Fernando B. ;

Penfold, Thomas J. ;

Monkman, Andrew P. .

METHODS AND APPLICATIONS IN FLUORESCENCE, 2017, 5 (01)

[7] Efficient Two-Photon Excited Fluorescence from Charge-Transfer Cocrystals Based on Centrosymmetric Molecules [J].

Doi, Chenghu ;

Wei, Zhixion ;

Chen, Zhen ;

Liu, Xiaoyan ;

Fan, Jihui ;

Zhao, Junfang ;

Zhang, Chuang ;

Pang, Zhiyong ;

Han, Shenghao .

ADVANCED OPTICAL MATERIALS, 2019, 7 (22)

[8] Observation of up-conversion fluorescence from exciplex of m-MTDATA: TPBi blend [J].

Du, Huitian ;

Zhou, Qian ;

Yu, Yuan ;

Liu, Chenghao ;

Zhang, Xijian ;

Pang, Zhiyong ;

Han, Shenghao .

JOURNAL OF LUMINESCENCE, 2022, 243

[9] Organic light-emitting diodes employing efficient reverse intersystem crossing for triplet-to-singlet state conversion [J].

Goushi, Kenichi ;

Yoshida, Kou ;

Sato, Keigo ;

Adachi, Chihaya .

NATURE PHOTONICS, 2012, 6 (04) :253-258

[10] Recent advances in optical properties and applications of colloidal quantum dots under two-photon excitation [J].

Gui, Rijun ;

Hui, Jin ;

Wang, Zonghua ;

Tan, Lianjiang .

COORDINATION CHEMISTRY REVIEWS, 2017, 338 :141-185

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