Photophysical and electrical properties of organic waveguide nanorods of perylene-3,4,9,10-tetracarboxylic dianhydride
organic semiconductor, single crystalline nanorod, optical waveguide, photoluminescence, electrical conductivity
The single crystalline nanostructure of organic semiconductors provides a verypromising class of materials for applications in modern optoelectronic devices.However, morphology control and optoelectronic property modulation of highquality single crystalline samples remain a challenge. Here, we report themorphology-controlled growth of single crystalline nanorod arrays of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA). We demonstrate that, unlike PTCDAfilm, PTCDA nanorods exhibits optical waveguide features, enhanced absorption,and Frenkel excitation emission in the visible region. Additionally, we measuredthe electrical properties of PTCDA nanorods, including the conductivity alongthe growth direction of the nanorod, which is roughly 0.61 S·m–1 (much higherthan that of pure crystalline PTCDA films).
Tsinghua University Press
Yuyan Han,Wei Ning,Liang Cao,Xiaotao Xu,Tian Li,Fapei Zhang,Li Pi,Faqiang Xu,Mingliang Tian, Photophysical and electrical properties of organic waveguide nanorods of perylene-3,4,9,10-tetracarboxylic dianhydride. NanoRes.2016, 9(7): 1948–1955