Highly efficient organic ultraviolet photodetectors based on a Cu(I) complex

resumo

We demonstrate high response visible-blind organic ultraviolet photodetector (UV-PD) using 4,4',4 ''-tris[3-methyl-pheny(phenyl)amino]triphenylamine (m-MTDATA) and a novel Cu(I) complex, [Cu(1,2-bis(diphenylphosphino)benzene)(bathocuproine)]BF(4) (CuBB) to act as the electron donor and acceptor, respectively. CuBB behaves high electron mobility and the optimized PD offers a photocurrent up to 173 mu A/cm(2) at -10V, corresponding to a response of 251 mA/W under an illumination of 365 nm UV light. We attribute the high response to the high electron transport ability of CuBB, the suppression of radiative decay of m-MTDATA and efficient charge transfer from m-MTDATA to CuBB. (C) 2010 Elsevier B.V. All rights reserved.

palavras-chave

LIGHT-EMITTING-DIODES; DOUBLE-HETEROSTRUCTURE; PHOTOVOLTAIC CELLS; ELECTROLUMINESCENCE

categoria

Materials Science; Physics; Polymer Science

autores

Xu, ZL; Xu, CH; Wang, QW; Jiang, WL; Liu, CB; Liu, LH; Liu, M; Li, WL; Che, GB; Shi, FN

nossos autores

Grupos

agradecimentos

This work is supported by the National Natural Science Foundation (No. 60978059), the Key Project of Chinese Ministry of Education (No. 210053) and the Natural Science Foundation of Jilin Province (No. 20090527) of China.

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