The Luminescence of a CuI Film Scintillator Controlled by a Distributed Bragg Reflector
TONG Fei1 , ZHU Zhi-Chao1 , LIU Bo1** , YI Ya-Sha2 , GU Mu1 , CHEN Hong1
1 Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai 200092,2 City University of New York, SI/GC, New York, New York 10016, USA
Abstract :We investigate the emission properties of CuI film scintillators and the effect of distributed Bragg reflectors. The free-exciton emission and the donor-acceptor pair emission from the CuI thin film with the peak wavelengths of 410 nm and 420 nm are observed. However, for the two emission bands, the distributed Bragg reflector reflection results in different enhancements, which is interpreted by the varying transmittance with wavelength. Angle-dependence of emission profile is decided by the transmittance and DBR reflection, which may be useful in scintillation detection applications.
收稿日期: 2012-11-20
出版日期: 2013-03-02
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