Author/Authors :
Xu، نويسنده , , Zhanlin and Xu، نويسنده , , Chunhui and Wang، نويسنده , , Qingwei and Jiang، نويسنده , , Wenlong and Liu، نويسنده , , Chunbo and Liu، نويسنده , , Lihui and Liu، نويسنده , , Mei and Li، نويسنده , , Wenlian and Che، نويسنده , , Guangbo and Shi، نويسنده , , Fanian، نويسنده ,
Abstract :
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)]BF4 (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 μA/cm2 at −10 V, 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.
Keywords :
Ultraviolet photodetectors , High electron mobility , Cu(I) complex , Photoluminescence quenching
