Near-ultraviolet photodetector based on hybrid polymer/zinc oxide nanorods by low-temperature solution processes | Zendy

YunYue Lin | Zendy; ChunWei Chen | Zendy; WeiChe Yen | Zendy; WeiFang Su | Zendy; ChenHao Ku | Zendy; JihJen Wu | Zendy

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Near-ultraviolet photodetector based on hybrid polymer/zinc oxide nanorods by low-temperature solution processes

Author(s) -

YunYue Lin,

ChunWei Chen,

WeiChe Yen,

WeiFang Su,

ChenHao Ku,

JihJen Wu

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2940594

Subject(s) - nanorod , polyfluorene , photodetector , responsivity , materials science , ultraviolet , optoelectronics , heterojunction , diode , polymer , specific detectivity , light emitting diode , quantum efficiency , nanotechnology , conjugated system , composite material

In this article, we have proposed a nanostructured near-ultraviolet photodetector (<400nm) based on the ZnO nanorod/polyfluorene hybrid by solution processes at low temperature. The current-voltage characteristic of the hybrid device demonstrates the typical pn-heterojunction diode behavior, consisting of p-type polymer and n-type ZnO nanorods, respectively. The relative quantum efficiencies of the hybrid device exhibit a nearly three order difference while illuminated under UV and visible light, respectively. The responsivity for the device can reach to 0.18A∕W at 300nm by applying a bias of −2V, which provides a route to fabricate a low-cost near-UV photodetector.

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