Search for dissertations about: "Qi Shi"
Found 2 swedish dissertations containing the words Qi Shi.
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1. Phase Modulation Two-Photon Microscopy of Hybrid Halide Perovskite
Abstract : Recently, intense research activities have been focused on solution-processed hybrid lead halide perovskite semiconductors which are being developed for the solar-cell, light emitting diode (LED), and lasing applications. To optimize and fabricate a competitive perovskite-based optoelectronic device, the fundamental studies of the electronic structure, photo-generated carrier dynamics as well as the photoluminescence (PL) & photocurrent (PC) response are necessary and of great significance. READ MORE
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2. Comparative studies of modern methods for caries detection and quantification
Abstract : In clinical dentistry proper treatment of caries lesions is highly dependent on diagnostic accuracy. Aim: The present dissertation aimed at the evaluation and comparisons between several modem methods for caries detection and quantification. READ MORE