| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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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 |
1Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai 200092,
2City University of New York, SI/GC, New York, New York 10016, USA
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TONG Fei, ZHU Zhi-Chao, LIU Bo et al 2013 Chin. Phys. Lett. 30 027803 |
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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.
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Received: 20 November 2012
Published: 02 March 2013
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