48 citations · 175 across the 10 of their papers we have counts for
10 papers
Strain effects on Phase-Filling Singularities in Highly Doped n-Type Ge
Zhigang Song, Wei-Jun Fan, C. S. Tan +4
Recently, Chi Xu et al. predicted the phase-filling singularities (PFS) in the optical dielectric function (ODF) of the highly doped -type Ge and confirmed in experiment the PFS…
The theoretical direct-band-gap optical gain of Germanium nanowires
Wen Xiong, Jian-Wei Wang, Wei-Jun Fan +2
We calculate the electronic structures of Germanium nanowires by taking the effective-mass theory. The electron and hole states at the G-valley are studied via the eight-band k.p t…
Band structure of strained GeSn alloy: a full-zone 30-band model
Zhigang Song, Weijun Fan, Chuan Seng Tan +4
We extend the previous 30-band model effectively employed for relaxed GeSn alloy to the case of strained GeSn alloy. The strain-relevant p…
Band structure of GeSnalloy: a full-zone 30-band model
Zhigang Song, Weijun Fan, Chuanseng Tan +4
A full-zone 30-band model is developed as an efficient and reliable tool to compute electronic band structure in GeSn alloy. The model was first used to…
Anomalous Spectral Characteristics of Ultrathin sub-nm Colloidal CdSe Nanoplatelets
Sumanta Bose, Savas Delikanli, Aydan Yeltik +6
We demonstrate high quantum yield broad photoluminescence emission of ultrathin sub-nanometer CdSe nanoplatelets (two-monolayer). They also exhibit polarization-characterized later…
Effect of Size and Shape on Electronic and Optical Properties of CdSe Quantum Dots
Yincheng Liu, Sumanta Bose, Weijun Fan
In this paper, we used the 8-band kp model with valence force field considerations to investigate the effect of size and shape on electronic and optical properties of cadmiu…
Temperature-dependent Optoelectronic Properties of Quasi-2D Colloidal Cadmium Selenide Nanoplatelets
Sumanta Bose, Sushant Shendre, Zhigang Song +5
Colloidal Cadmium Selenide (CdSe) nanoplatelets (NPLs) are a recently developed class of efficient luminescent nanomaterial suitable for optoelectronic device applications. A chang…
Optoelectronics of Inverted Type-I CdS/CdSe Core/Crown Quantum Ring
Sumanta Bose, Weijun Fan, Dao Hua Zhang
Inverted type-I heterostructure core/crown quantum rings (QRs) are quantum-efficient luminophores, whose spectral characteristics are highly tunable. Here, we study the optoelectro…
Electronic bandstructure and optical gain of lattice matched III-V dilute nitride bismide quantum wells for 1.55 m optical communication systems
W. J. Fan, Sumanta Bose, D. H Zhang
Dilute nitride bismide GaNBiAs is a potential semiconductor alloy for near- and mid-infrared applications, particularly in 1.55 m optical communication systems. Incorporating di…
Resonant impurities states-driven topological transition in quantum well
Zhi-Gang Song, Wei-Jun Fan, Yan-Yang Zhang +1
We demonstrate theoretically that a new system quantum well can realize the topological transition based on the 16-band kp model. Utilizing the strain introduced by the doped impur…