Application of micro/nanoscale thermal radiation to thermophotovoltaic system  

作　　者：王爱华 蔡九菊 

机构地区：[1]School of Materials and Metallurgy, Northeastern University [2]Department of Mechanical and Aerospace Engineering, Florida Institute of Technology

出　　处：《Journal of Central South University》2011年第6期2176-2184,共9页中南大学学报（英文版）

基　　金：Project(2009AA05Z215) supported by the National High Technology Research and Development Program of China

摘　　要：Thermophotovoltaic （TPV） system has been regarded as one promising means to alleviate current energy demand because it can directly generate electricity from radiation heat via photons. However, the presently available TPV systems suffer from low conversion efficiency and low throughput. A viable solution to increase their efficiency is to apply micro/nanoscale radiation principles in the design of different components to utilize the characteristics ~f thermal radiation at small distances and in microstructures. Several critical issues are reviewed, such as photovoltaic effect, quantum efficiency and efficiency of TPV system. Emphasis is given to the development of wavelength-selective emitters and filters and the aspects of micro/nanoscale heat transfer. Recent progress, along with the challenges and opportunities for future development of TPV systems are also outlined.Thermophotovoltaic (TPV) system has been regarded as one promising means to alleviate current energy demand because it can directly generate electricity from radiation heat via photons. However, the presently available TPV systems suffer from low conversion efficiency and low throughput. A viable solution to increase their efficiency is to apply micro/nanoscale radiation principles in the design of different components to utilize the characteristics of thermal radiation at small distances and in microstructures. Several critical issues are reviewed, such as photovoltaic effect, quantum efficiency and efficiency of TPV system. Emphasis is given to the development of wavelength-selective emitters and filters and the aspects of micro/nanoscale heat transfer. Recent progress, along with the challenges and opportunities for future development of TPV systems are also outlined.

关 键 词：thermophotovoltaic system micro/nanoscale radiation quantum efficiency EMITTER filter photon tunneling 

分 类 号：TM914[电气工程—电力电子与电力传动]