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In this paper, a series of microcrystalline silicon (μc-Si:H) solar cells were fabricated on different back reflectors by very high frequency plasma enhanced chemical vapor deposition (VHF-PECVD). The results indicated that the performance of μc-Si:H solar cells strongly depended on their back reflector structures. First of all, the various Al:ZnO films with different optical and electrical properties...
Recently, the most popular research in the field of emotion recognition on human-computer interaction is to recognize human's feeling using various physiological signals. In the psycho-physiological research, it is known that there is strong correlation between human emotion state and physiological reaction. In this study, seven kinds of emotion (happiness, sadness, anger, fear, disgust, surprise,...
We present the systematic study of the growth mechanism of ZnO nanorods grown on Al2O3 substrates with ZnO homo-buffer, n-GaN and p-GaN interlayers. Vertically aligned ZnO nanorods with diameter of 50 nm and lengths of range of 0.1 - 2 mum were synthesized at the substrate temperature of 350 - 500degC by catalyst-free metal-organic chemical vapor deposition. A thin ZnO film was observed underneath...
The possibility of using polymer or organic films for photovoltaic or electret devices has been investigated by many investigators(1–5). In general, the open-circuit photovoltage in photovoltaic devices is much smaller than the potential difference across the energy gap of the materials if the mechanism responsible for the photovoltaic effects is due either to Schottky barrier, or to p-n junction...
It is well known that foreign elements incorporated into a material will change both its structure and composition, which may lead to novel properties. In organic polymers, molecular doping by chemical means to form charge transfer complexes has been extensively studied in the past ten years[1]. To improve the photoelectric properties, a plasma polymerization technique has been developed for the incorporation...
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