Photocurrent in the Polyfluorene Copolymer/PTCDI Heterojunction Enhanced by Reabsorption of Fluorescence Emission

Dmitriy A. Lypenko; Alexey E. Aleksandrov; Artem V. Dmitriev; Anton A. Yakimanskiy; Ilya E. Kolesnikov; Tatiana G. Chulkova; Alexander V. Yakimansky; Alexey R. Tameev

doi:10.1007/s10118-024-3231-4

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Photocurrent in the Polyfluorene Copolymer/PTCDI Heterojunction Enhanced by Reabsorption of Fluorescence Emission

RESEARCH ARTICLE | Updated：2024-12-03

- Photocurrent in the Polyfluorene Copolymer/PTCDI Heterojunction Enhanced by Reabsorption of Fluorescence Emission
- Photocurrent in the Polyfluorene Copolymer/PTCDI Heterojunction Enhanced by Reabsorption of Fluorescence Emission
- 高分子科学（英文版） 2024年42卷第12期页码：1941-1947
- Affiliations：
  
  a.Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, 31/bld.4 Leninskiy Prospect, Moscow 119071, Russia
  b.Institute of Macromolecular Compounds of the Russian Academy of Sciences, 31 Bolshoi pr. VO, Saint Petersburg 199004, Russia
  c.Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
- Author bio：
  
  tameev@elchem.ac.ru
- Funds：
  
  The part of the research concerning the synthesis of FFCN and PFCN, UV-Vis absorption and luminescence spectra, CVA and photoconductivity was supported by the Russian Science Foundation (No. 23-43-00060). The part of the work involving the study of charge carrier mobility (performed at Frumkin Institute) was financially supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of the state assignment for scientific activity (No. 122011300052-1). The authors acknowledge the Centre for Optical and Laser Materials Research (SPbSU) and Saint Petersburg State University for measuring the quantum yield of luminescence of polymer films within the framework of research (No. АААА-А19-119082790069-6). PTCDI was synthesized by the group headed by Prof. S. N. Osipov at the Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences.;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-024-3231-4.
- DOI：10.1007/s10118-024-3231-4
  中图分类号：
- 纸质出版日期：2024-12-01，
  
  网络出版日期：2024-10-29，
  
  收稿日期：2024-06-08，
  
  修回日期：2024-08-28，
  
  录用日期：2024-09-05
- Accepted：
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Lypenko, D. A.; Aleksandrov, A. E.; Dmitriev, A. V.; Yakimanskiy, A. A.; Kolesnikov, I. E.; Chulkova, T. G.; Yakimansky, A. V.; Tameev, A. R. Photocurrent in the polyfluorene copolymer/PTCDI heterojunction enhanced by reabsorption of fluorescence emission. Chinese J. Polym. Sci. 2024, 42, 1941–1947

DMITRIY A. LYPENKO, ALEXEY E. ALEKSANDROV, ARTEM V. DMITRIEV, et al. Photocurrent in the Polyfluorene Copolymer/PTCDI Heterojunction Enhanced by Reabsorption of Fluorescence Emission. [J]. Chinese journal of polymer science, 2024, 42(12): 1941-1947.
Lypenko, D. A.; Aleksandrov, A. E.; Dmitriev, A. V.; Yakimanskiy, A. A.; Kolesnikov, I. E.; Chulkova, T. G.; Yakimansky, A. V.; Tameev, A. R. Photocurrent in the polyfluorene copolymer/PTCDI heterojunction enhanced by reabsorption of fluorescence emission. Chinese J. Polym. Sci. 2024, 42, 1941–1947 DOI： 10.1007/s10118-024-3231-4.

DMITRIY A. LYPENKO, ALEXEY E. ALEKSANDROV, ARTEM V. DMITRIEV, et al. Photocurrent in the Polyfluorene Copolymer/PTCDI Heterojunction Enhanced by Reabsorption of Fluorescence Emission. [J]. Chinese journal of polymer science, 2024, 42(12): 1941-1947. DOI： 10.1007/s10118-024-3231-4.

摘要

Energy diagram of the studied devices and transport of photogenerated charge carriers. HTL and ETL are hole and electron transport layers

respectively; PL is photoluminescence; CPF is copolyfluorene with dicyanostilbene (FFCN) or dicyanophenatrene (PFCN). CPF and PTCDI were used as photoactive materials. The structure of the PFCN copolymer (top).

Abstract

Copolyfluorenes are of great interest due to their ability to form thin films with tunable optical and electrical properties. In this paper

copolymers of polyfluorene with electron withdrawing dicyanostilbene and dicyanophenanthrene moieties were synthesized; their thin films were characterized by electron spectroscopy

cyclic voltammetry

electrical

and photoelectrical measurements. The mobility of charge carriers in the copolymers was measured for the first time

with the acceptor components providing balanced electron and hole mobilities of the order of 10

−6

·V

−1

·s

−1

. Photodetectors based on the copolymer/PTCDI heterojunction exhibited the photoresponse band extended into the green region due to the absorption of PTCDI and an increased photocurrent in the UV-blue absorption band of the copolymer

which is related to the absorption of photoluminescent emission of the copolymers in PTCDI. The presented approach to improving the performance of a polymer-based photodetector is promising in organic optoelectronics.

关键词

Keywords

Polyfluorene copolymerPerylenedicarboximide derivativeCharge carrier mobilityFluorescencePhotoconductivity

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