ScholarWorks: Observation of orientation-dependent photovoltaic behaviors in aligned organic nanowires

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Organic Electronics Lab

Research Interests

Nano Molecular Electronics, Flexible Electronics, Organic Electronic Materials
Fabrication of Organic and Polymer Nanomaterials and Their Applications in Nanodevices
Nanoelectronics Based on Graphene and Carbon Nanotubes
Nano-/Micro-Patterning, Self-Assembly
Charge Transport Phenomenon

Observation of orientation-dependent photovoltaic behaviors in aligned organic nanowires

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Title: Observation of orientation-dependent photovoltaic behaviors in aligned organic nanowires

Author: Oh, Joon Hak; Helena Wong, Lydia; Yu, Hojeong; Park, Young Jun; Kim, Jong Min; Bao, Zhenan

Keywords: filtration; nanofabrication; nanowires; organic semiconductors; power conversion; solar cells

Abstract: We fabricated organic nanowire (NW) solar cells based on aligned NWs of n-channel organic semiconductor, N,N′-bis(2-phenylethyl)-perylene-3,4:9, 10-tetracarboxylic diimide via a filtration-and-transfer alignment method. It is well known that most efficient charge transport typically takes place along the long axis of organic NWs. However, there is no systematic study on the correlation between the orientation of NWs in the active layer and the power conversion efficiency (PCE) of solar cells. Our results demonstrate the effects of alignment direction of NWs on the PCE of organic solar cells with single-crystalline NWs.