【摘 要】
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Porous semiconductors is an attractive material in many areas, including optoelectronics, sensors, and thermoelectric devices.Many bottom-up syntheses based on self-assembly processes have been report
【机 构】
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Department of Mechanical and Nuclear Engineering,The Pennsylvania State University,University Park,P
【出 处】
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International Conference on Nanoscience & Technology,China 2
论文部分内容阅读
Porous semiconductors is an attractive material in many areas, including optoelectronics, sensors, and thermoelectric devices.Many bottom-up syntheses based on self-assembly processes have been reported for mesoporous materials such as metal oxide, using various types of external templates for pore generation.In this presentation, I will present a bottom-up synthesis of mesoporous crystalline Si and other semiconductors by a new pore formation mechanism.The pores are generated by self-forming templates.The resulting porous silicon materials show a mesostructure composed of nano-sized interconnected Si primary particles and mesopores, both with tunable sizes, and the surface area as high as 580 m2 g-1.The advantages of the material, such as its nano-sized crystalline primary particles and high surface areas, enable increased photocatalytic hydrogen evolution rate and extended working life.
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