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Journal of Spectroscopy
Volume 2013, Article ID 803907, 5 pages
http://dx.doi.org/10.1155/2013/803907
Research Article

The Spectrum of Quantum Dots Film for UV CCD

1Shanghai Key Laboratory of Modern Optical System, School of Optical-Electrical and Computer Engineering, Shanghai Publishing and Printing College, University of Shanghai for Science and Technology, Shanghai 200093, China
2Shanghai Publishing and Printing College, Shanghai 200093, China

Received 10 April 2013; Accepted 3 June 2013

Academic Editor: M. Carmen Yebra-Biurrun

Copyright © 2013 Lin Jiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A new kind of UV-responsive film with quantum dots (QDs) fabricated by a spin-coating method is proposed in this paper. In a previous study, the monolayer QDs film is deposited onto fused silica slides by the spin-coating way, which has some luminous problem. The introduction of composite QDs coating which adds PEDOT:PSS and poly-TPD films to the monolayer QDs film is found to have excellent performance. The reason can be that PEDOT:PSS and poly-TPD weaken the scattering and enhance the emitting of quantum dot fluorescence. The intensity of photoluminescence (PL) for composite QDs coating is dozens of times stronger than that for monolayer QDs film. Experiment results show that this composite coating has excellent fluorescent properties and emits a blue purple glow together a wide excitation spectrum field from 190 nm to 300 nm. The spectrum of the composite coating matches accurately with the detected zone of CCD, which achieves an outstanding UV-responsive coating for conventional silicon-based image sensors.