Zobrazeno 1 - 10
of 333
pro vyhledávání: '"Benkang Chang"'
Publikováno v:
In Applied Surface Science 15 May 2013 273:111-117
Autor:
Yunsheng Qian, Benkang Chang, Shi Feng, Guiyuan Wang, Yang Mingzhu, Cheng Hongchang, Jian Liu, Kun Wang, Hong Cam Tran, Rongguo Fu
Publikováno v:
Solar Energy. 174:352-358
Thermally enhanced photoelectric emission (TEPE) is a method for solar energy conversion, and it combines the quantum approach and the thermal approach. Different from photon-enhanced thermionic emission (PETE), TEPE is based on the photoelectric emi
Autor:
Ziheng Wang, Gangcheng Jiao, Yijun Zhang, Feng Shi, Yunsheng Qian, Cheng Feng, Benkang Chang, Jian Liu
Publikováno v:
Optics Communications. 413:1-7
A theoretical emission model for Al x Ga 1 − x As/GaAs cathode with complex structure based on photon-enhanced thermionic emission is developed by utilizing one-dimensional steady-state continuity equations. The cathode structure comprises a graded
Publikováno v:
Optics Communications. 402:85-90
A transmission mode Al x Ga 1 − x As ∕ GaAs photocathode consisting of a composition-graded window layer and an exponential-doping emission layer is proposed to improve the performance of photon-enhanced thermionic emission (PETE) solar energy co
Publikováno v:
Applied Surface Science. 416:925-931
To improve the quantum efficiency of the extended blue varied-doping Ga 0.37 Al 0.63 As photocathode, different cleaning methods for oxide and carbon on the surface of the Ga 0.37 Al 0.63 As photocathode were investigated. The surface structure and a
Publikováno v:
Journal of Materials Science: Materials in Electronics. 28:7429-7436
Negative electron affinity GaAs photocathode is made from p-type doped photocathode, and the p-type GaAs photocathode is commonly doped by Be or Zn atoms. To investigate the doping differences of the two dopants, the undoped GaAs(100)β2(2 × 4) reco
Publikováno v:
Optik. 130:1151-1157
To seek the effect of activation and recesiation mechanism of AlGaAs photocathode, Cs, O co-adsorption on Al 0.5 Ga 0.5 As (001) β 2 (2 × 4) surface was performed based on first-principle density functional theory (DFT) and Cs/O activation and rece
Study of cesium and oxygen adsorption on surface of GaAlAs photocathode in ultra-high vacuum chamber
Publikováno v:
Optik. 130:806-812
The mechanism of cesium (Cs) and oxygen (O) adsorption on GaAlAs photocathode has been investigated. The models of Cs and O adsorption on GaAlAs surface are studied, and the electron affinity changing with Cs coverage on GaAlAs surface is calculated
Publikováno v:
Solar Energy Materials and Solar Cells. 159:73-79
The combination of thermionic and photoelectric emission for solar energy conversion has been studied for years. There are two concepts for this synergistic process: hot electron conversion (HEC), which supposes that the excited carriers equilibrate
Publikováno v:
In Applied Surface Science 2005 251(1):273-277