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Browsing by Author "Chan, Yueh-Lin"

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    Evaluation of Luminescent Downshifting Effect of Perovskite Quantum Dots on Semiconductor Solar Cells
    (2018-01-01)
    Chen, Chun-Hong
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    Yu, Chung-Ping
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    Huang, Yu-Ming
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    Chan, Yueh-Lin
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    Huang, Chung-Ping
    The luminescent down-shifting effect of the perovskite quantum dots on single junction GaAs solar cells are examined and discussed. The perovskite quantum dots can provide an effective way to convert ultra-violet photons in solar spectrum to visible ones which can be transformed into electron-hole pairs more efficiently. Three different designs are tried: direct-dispense, ITO nano-whisker up and ITO nano-whisker down. In this experiment, we use perovskite quantum dots(QDs) with the concentration of 1mg/ml and emit photons of the wavelength 530nm (CsPbBr3), and the various volume of perovskite QDs were deposited on the solar cell to observe the possible luminescent down-shifting phenomenon.
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    Microwave Spectral Characteristics of the Three-Section Distributed Feedback Lasers
    (2018-01-01)
    Chen, Chun-Hong
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    Hsiao, Fu-Chun
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    Dong, Yao-Zhong
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    Chan, Yueh-Lin
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    Chen, Yi-Hsun
    The three-section DFB lasers are used for RF signal generation. With an extra section, it can lime the RF peak frequency farther than the two-section one, and can also simultaneously generate two single-mode RF signals.