An ultraviolet photo-detector based on TiO2/water solid-liquid heterojunction

Applied Physics Letters - Tập 99 Số 25 - 2011
Wen‐Jen Lee1, Min‐Hsiung Hon1,2
1Department of Materials Science and Engineering, National Cheng Kung University 1 , Tainan 70101, Taiwan
2Research Center for Energy Technology and Strategy, National Cheng Kung University 2 , Tainan 70101, Taiwan

Tóm tắt

In this study, an ultraviolet photodetector (UV-PD) based on TiO2/water solid-liquid heterojunction (SLHJ) is reported. The SLHJ UV-PD exhibits a high photosensitivity, excellent spectral selectivity, linear variations in photocurrent, and fast response. In addition, it is suggested that the spectral response can be tailored and that the performance can be improved through deliberate design of the active layer, electrolyte, and substrate of the SLHJ UV–PD. Moreover, we anticipate this work to be a starting point for more sophisticated commercial photon detection using an SLHJ device.

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Applied Physics Letters

Tập 99 Số 25

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