Electron Emission Due to Exciton Breakup from Negative Electron Affinity Diamond.
作者： C. Bandis , B. B. Pate
DOI: 10.1103/PHYSREVLETT.74.777
关键词: Exciton 、 Molecular physics 、 Nanotechnology 、 Excitation 、 Diamond 、 Band gap 、 Thermalisation 、 Materials science 、 Breakup 、 Electron
摘要: We identify exciton breakup at the surface as dominant source of photoelectron emission from negative electron affinity diamond (111): H for near band gap excitation up to 0.5 eV above threshold. Dependence characteristics upon energy suggests thermalization carriers via a Fan phonon-cascade mechanism.
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dissem.in参考文章(13)
F. J. Himpsel, J. A. Knapp, J. A. VanVechten, D. E. Eastman, Quantum photoyield of diamond(111)—A stable negative-affinity emitter Physical Review B. ,vol. 20, pp. 624- 627 ,(1979) , 10.1103/PHYSREVB.20.624
B. B. Pate, P.M. Stefan, C. Binns, P. J. Jupiter, M. L. Shek, I. Lindau, W. E. Spicer, Formation of surface states on the (111) surface of diamond Journal of Vacuum Science and Technology. ,vol. 19, pp. 349- 354 ,(1981) , 10.1116/1.571062
J Van der Weide, RJ Nemanich, Schottky barrier height and negative electron affinity of titanium on (111) diamond Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. ,vol. 10, pp. 1940- 1943 ,(1992) , 10.1116/1.586162
Intrinsic Edge Absorption in Diamond Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 277, pp. 312- 329 ,(1964) , 10.1098/RSPA.1964.0025
W. E. Spicer, Photoemissive, Photoconductive, and Optical Absorption Studies of Alkali-Antimony Compounds Physical Review. ,vol. 112, pp. 114- 122 ,(1958) , 10.1103/PHYSREV.112.114
W. E. Spicer, Negative affinity 3–5 photocathodes: Their physics and technology Applied Physics. ,vol. 12, pp. 115- 130 ,(1977) , 10.1007/BF00896137
P. J. Dean, E. C. Lightowlers, D. R. Wight, Intrinsic and Extrinsic Recombination Radiation from Natural and Synthetic Aluminum-Doped Diamond Physical Review. ,vol. 140, pp. A352- A368 ,(1965) , 10.1103/PHYSREV.140.A352
V.J Mazurczyk, H.Y Fan, Effects of optical phonons in the impurity photoconductivity of ZnTe Physics Letters A. ,vol. 26, pp. 220- 221 ,(1968) , 10.1016/0375-9601(68)90611-7
H. Y. Fan, Spectral oscillations of photoconductivity Radiation Effects and Defects in Solids. ,vol. 4, pp. 7- 11 ,(1970) , 10.1080/00337577008234957
J. L. Warren, J. L. Yarnell, G. Dolling, R. A. Cowley, Lattice Dynamics of Diamond Physical Review. ,vol. 158, pp. 805- 808 ,(1967) , 10.1103/PHYSREV.158.805