Suppression of radiative decay of CdTe quantum dots in a photonic crystal with a pseudogap |
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| Authors: | Jia-Yu Zhang Xiao-Yong Wang Yong-Hong Ye Min Xiao |
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| Affiliation: | 1. Department of Physics , University of Arkansas , Fayetteville, Arkansas, 72701, USA E-mail: mxiao@mail.uark.edu;2. Center for Nanoscale Science, Pennsylvania State University , University Park, Pennsylvania, 16802, USA |
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| Abstract: | Abstract Observation-angle dependence of the spontaneous emission life-time of CdTe quantum dots (QDs) embedded in a pseudogap photonic crystal (PC) film has been demonstrated. Comparison of two PC films with different photonic band-gaps (PBGs) differentiates the PBG effect from the electronic and/or chemical interactions between CdTe QDs and the host medium. This lifetime modification of QDs by a PC with pseudogap can be very useful in applications for optoelectronic devices such as QD lasers and QD switches. |
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