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Novel Photodetectors Based on Double-Walled Carbon Nanotube Film/TiO2 Nanotube Array Heterodimensional Contacts
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2011
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EngineeringNovel PhotodetectorsA/w 的高 PhotoresponsePhoto-electrochemical CellPhotoelectrochemistry碳 NanotubePhotoelectric SensorCarbon-based MaterialPhotodetectorsPhotocatalysisMaterials ScienceElectrical EngineeringPhotochemistryNanotechnologyPhotoelectric MeasurementNanomaterialsApplied PhysicsThin FilmsOptoelectronics
基于双 walled 碳 nanotube (DWCNT ) ,电影和 TiO2 nanotube 与 hetrodimensional 穿的光电探测器的一种新类型非欧姆的接触被制作了。由于维数差别效果, DWCNT film/TiO2 nanotube 数组光电探测器相对一台 Au film/TiO2 nanotube 数组设备展出高得多的 photocurrent-to-dark 电流比率和 photoresponse,甚至在小偏爱电压。photocurrent-to-dark 电流比率到达了四个数量级, 2467 A/W 的高 photoresponse 在 340 nm 在照耀之上被发现。而且,感光性的区域能被扩大到可见范围。photocurrent-to-dark 电流比率在 532 nm 在照耀之上到达了约三个数量级,在光子精力比 TiO2 的乐队差距低得多的地方。