58 citations · 252 across the 10 of their papers we have counts for
10 papers
Kinetic Processes and surfactant design of Group I elements on CZTS (1-1-2-) surface
Kejie Bao, Haolin Liu, Kinfai Tse +3
Cu2ZnSnS4 (CZTS) is a promising thin-film solar-cell material consisted of earth abundant and nontoxic elements. Yet, there exists a fundamental bottle neck that hinders the perfor…
Extremely large magnetoresistance and the complete determination of the Fermi surface topology in the semimetal ScSb
Y. J. Hu, E. I. Paredes Aulestia, K. F. Tse +5
We report the magnetoresistance of ScSb, which is a semimetal with a simple rocksalt-type structure. We found that the magnetoresistance reaches 28000 % at 2 K and 14 T in ou…
Towards understanding the special stability of and
Sze-Chun Tsang, Jingzhao Zhang, Kinfai Tse +1
Reversible hydrogen incorporation was recently attested [N. Lu, , Nature , 124 (2017)] in , the brownmillerite phase (BM…
Hydrogen Surfactant Assisted Coherent Growth of GaN on ZnO Substrate
Jingzhao Zhang, Yiou Zhang, Kinfai Tse +1
Heterostructures of wurtzite based devices have attracted great research interests since the tremendous success of GaN in light emitting diodes (LED) industry. Among the possible h…
Defect Properties of Na and K in Cu2ZnSnS4 from Hybrid Functional Calculation
Kinfai Tse, Manhoi Wong, Yiou Zhang +3
In-growth or post-deposition treatment of (CZTS) absorber layer had led to improved photovoltaic efficiency, however, the underlying physical mechanism of such im…
Step Stone Effect: A sp anti-bonding Mediated Long-Range Ferromagnetism in Cr-doped Carrier-Free Bi2Te3
Chunkai Chan, Xiaodong Zhang, Yiou Zhang +4
Despite the recent success in the realization of the quantum anomalous Hall effect, the underlying physical mechanism of the long range Ferromagnetism is still unclear. Based on ou…
Surface energy calculations from Zinc blende (111)/(-1-1-1) to Wurtzite (0001)/(000-1):a study of ZnO and GaN
Jingzhao Zhang, Yiou Zhang, Kinfai Tse +3
The accurate absolute surface energies of (0001)/(000-1) surfaces of wurtzite structures are crucial in determining the thin film growth mode of important energy materials. However…
Induced effects by the substitution of Zn in Cu2ZnSnX4 (X = S and Se)
Guohua Zhong, Kinfai Tse, Yiou Zhang +7
Based on the density functional theory with hybrid functional approach, we have studied the structural and thermodynamic stabilities of Cu2MSnX4 (M = Zn, Mg, and Ca; X = S and Se)…
A novel strategy to control defects and secondary phases of CZTS by surfactant Potassium
Yiou Zhang, Kinfai Tse, Xudong Xiao +1
Cu2ZnSnS4 (CZTS) is a promising photovoltaic absorber material with earth abundant and nontoxic elements. However, the detrimental native defects and secondary phases of CSTS will…
Pseudo-Hydrogen Passivation_A Novel Way to Calculate Absolute Surface Energy of Zinc Blende (111) Surface
Yiou Zhang, Jingzhao Zhang, Kinfai Tse +3
Determining accurate absolute surface energies for polar surfaces of semiconductors has been a great challenge in decades. Here, we propose pseudo-hydrogen passivation to calculate…