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Nano Research

Article Title

Photophysical and electrical properties of organic waveguide nanorods of perylene-3,4,9,10-tetracarboxylic dianhydride

Keywords

organic semiconductor, single crystalline nanorod, optical waveguide, photoluminescence, electrical conductivity

Abstract

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).

Graphical Abstract

Publisher

Tsinghua University Press

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