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12 papers · 1 filter
Infinite Orders and Non--finite Property of -Dimensional Lattice Walks
Daniel K. Du, Qing-Hu Hou, Rong-Hua Wang
Recently, Bostan and his coauthors investigated lattice walks restricted to the non-negative octant . For the non-trivial models with at most six steps, they…
A comparing study on optoelectronic properties of phototransistors based on MEH-PPV and PbS QD hybrids with bulk- and layer-heterojunction
Xiaoxian Song, Yating Zhang, Ran Wang +9
As the responsivity (R) of a thin film photo detector is proportional to the product of the photo-induced carrier density (n) and mobility (u) (Z. Sun, Z. Liu, J. Li, G.-a. Tai, S.…
Sun's log-concavity conjecture on the Catalan-Larcombe-French sequence
James J. Y. Zhao
Let denote the Catalan-Larcombe-French sequence, which naturally came up from the series expansion of the complete elliptic integral of the first kind. In this…
Which is conducive to high responsivity in a hybrid graphene-quantum dot transistor: Bulk- or layer- heterojunction
Yating Zhang, Xiaoxian Song, Ran Wang +4
Heterojunction, a photoelectric conversion center, plays a critical role in photo detection. A compare study is performed on field effect phototransistors (FEpT) with two typical h…
The precise time-dependent solution of the Fokker-Planck equation with anomalous diffusion
Ran Guo, Jiulin Du
We study the time behavior of the Fokker-Planck equation in Zwanzig rule (the backward-Ito rule) based on the Langevin equation of Brownian motion with an anomalous diffusion in a…
Spin Polarization Inversion at Benzene-Absorbed Fe4N Surface
Qian Zhang, Wenbo Mi, Xiaocha Wang +1
We report a first-principle study on electronic structure and simulation of the spin-polarized scanning tunneling microscopy graphic of a benzene/Fe4N interface. Fe4N is a compound…