Characteristics of photodetectors with TiO2 nanorod arrays

Author

Shih, Wei-Shun ; Ji, Liang-Wen ; Shiu, Huei-Wen ; Young, Sheng-Joue ; Water, Walter ; Liu, Chien-Hung ; Meen, Teen-Hang ; Tsai, Jenn-Kai ; Chen, Wen-Ray ; Prior, Stephen D.

Author_Institution

Inst. of Electro-Opt. & Mater. Sci., Nat. Formosa Univ., Yunlin, Taiwan

fYear

2011

fDate

21-24 June 2011

Firstpage

1

Lastpage

2

Abstract

TiO₂ is one of most widely studied and important materials for science application. A photodetectors (PDs) with TiO₂ nanorod arrays (TNAs) has been fabricated and characterized in this work. We report that the UV response of such a PDs has been enhanced about 4 orders of magnitude. This giant enhancement in photoresponsivity can be attributed to TNAs, because TNAs provide a directed path for electrical transport and increase optical absorption. The results indicate that TNAs are useful and attractive in the application of UV detectors.

Keywords

light absorption; nanorods; photodetectors; titanium compounds; ultraviolet detectors; TiO₂; UV detectors; UV response; electrical transport; giant enhancement; nanorod arrays; optical absorption; photodetectors; photoresponsivity; Electrodes; Films; Glass; Nanobioscience; Photodetectors; Substrates; Surface morphology; TiO2 nanorod arrays; photodetectors and responsivities;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoelectronics Conference (INEC), 2011 IEEE 4th International

Conference_Location

Tao-Yuan

ISSN

2159-3523

Print_ISBN

978-1-4577-0379-9

Electronic_ISBN

2159-3523

Type

conf

DOI

10.1109/INEC.2011.5991659

Filename

5991659