SnO₂ Nanorods for Light Sensor and UV Detector

Authors: Zhang, Hulin; Hu, Chenguo; Xu, Jing; Wan, Buyong; Zhang, Kaiyou; Li, Xiaoyan

Source: Sensor Letters, Volume 9, Number 5, October 2011 , pp. 1643-1648(6)

Publisher: American Scientific Publishers

Buy & download fulltext article:

Price: $113.00 plus tax (Refund Policy)

Abstract:

A photoelectric device has been fabricated using stannic oxide (SnO₂ nanorods which are obtained by the hydrothermal method with diameter of 300 nm and length of 1.5 μm. The UV-visible absorption spectrum demonstrates a band gap of 3.6 eV. The photoelectric effects of the device have been systematically characterized in the irradiation of the simulated sunlight and UV light, respectively. The highly sensitive responses of the device to light shifts and its excellent stability of sustained photocurrent in exposure to light demonstrates its great potential applications as optical sensors/switches with a response time in ∼ms range. In addition, the linear plot of photocurrent versus the incident light intensity (simulated sunlight and UV) indicates that the nanorod device can be used as a sensitive and stable UV photometer. The performance of the device is analyzed in terms of the normalized photoconductive gain and is compared with the ZnO film photodetector.

Keywords: STANNIC OXIDE; SEMICONDUCTOR; LIGHT SENSOR

Document Type: Research article

DOI: http://dx.doi.org/10.1166/sl.2011.1720

Publication date: 2011-10-01

More about this publication?

The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
Editorial Board
Information for Authors
Subscribe to this Title
Terms & Conditions
ingentaconnect is not responsible for the content or availability of external websites