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Author: nhan nguyen
Displaying records 71 to 72.
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71. A Unique Photoemission Method to Measure Semiconductor Heterojunction Band Offsets
Qin Zhang, Rui Li, Rusen Yan, Thomas Kosel, Grace Xing, Alan Seabaugh, Kun Xu, Oleg A Kirillov, David J Gundlach, Curt A Richter, Nhan V Nguyen
We report a unique way to measure the energy band offset of a heterojunction by exploiting the light absorption profile in the heterojunction under visible-ultraviolet internal photoemission. This method was used to successfully determine the band a ...
72. Direct Measurement of Intrinsic Dirac Point and Fermi level at Graphene/Oxide interface and Its Band
Alignment by Cavity Enhanced Internal Photoemission
Kun Xu, Caifu Zeng, Qin Zhang, Rusen Yan, Peide Ye, Kang Wang, Alan C. Seabaugh, Huili G. Xing, John S Suehle, Curt A Richter, David J Gundlach, Nhan V Nguyen
We report the first direct measurement of the Dirac point, the Fermi level, and the work function of
graphene by performing internal photoemission measurements on a graphene/SiO2/Si structure with a
unique optical-cavity enhanced test structure. ...