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一类含硅亚苯结构的新有机硅预聚体 总被引:6,自引:0,他引:6
一类含硅亚苯结构的新有机硅预聚体车波王安锋周彩华傅辛福林思聪(南京大学高分子科学与工程系生物材料分子工程和控制释放分子工程室南京210093)关键词有机硅预聚体,对 硅亚苯硅氧烷,热稳定性,合成与表征,开环共聚从分子工程的角度看,以聚有机... 相似文献
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An n—n type heterojunction enabling highly efficientcarrier separation in inorganic solar cells
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Carrier separation in a solar cell usually relies on the p—n junction. Here we show that an n—n type inorganic semiconductor heterojunction is also able to separate the exciton for efficient solar cell applications. The n—n type heterojunction was formed by hydrothermal deposition of Sb2(S,Se)3 and thermal evaporation of Sb2Se3. We found that the n—n junction is able to enhance the carrier separation by the formation of an electric field, reduce the interfacial recombination and generate optimized band alignment. The device based on this n—n junction shows 2.89% net efficiency improvement to 7.75% when compared with the device consisted of semiconductor absorber—metal contact. The study in the n—n type solar cell is expected to bring about more versatile materials utility, new interfacial engineering strategy and fundamental findings in the photovoltaic energy conversion process. 相似文献
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