Z
Zhifu Liu
Researcher at Northwestern University
Publications - 103
Citations - 4213
Zhifu Liu is an academic researcher from Northwestern University. The author has contributed to research in topics: Semiconductor & Band gap. The author has an hindex of 27, co-authored 103 publications receiving 3226 citations. Previous affiliations of Zhifu Liu include Texas A&M University & Northwest University (United States).
Papers
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Journal ArticleDOI
Crystal Growth of the Perovskite Semiconductor CsPbBr3: A New Material for High-Energy Radiation Detection
Constantinos C. Stoumpos,Christos D. Malliakas,John A. Peters,Zhifu Liu,Maria Sebastian,Jino Im,Thomas C. Chasapis,Arief Wibowo,Duck Young Chung,Arthur J Freeman,Bruce W. Wessels,Mercouri G. Kanatzidis +11 more
TL;DR: The perovskite compound CsPbBr3 as mentioned in this paper is a direct band gap semiconductor which meets most of the requirements for successful detection of X and γ-ray radiation, such as high attenuation, high resistivity, and significant photoconductivity response, with detector resolution comparable to that of commercial, state-of-the-art materials.
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High spectral resolution of gamma-rays at room temperature by perovskite CsPbBr3 single crystals
Yihui He,Liviu Matei,Hee Joon Jung,Kyle M. McCall,Michelle Chen,Constantinos C. Stoumpos,Zhifu Liu,John A. Peters,John A. Peters,Duck Young Chung,Bruce W. Wessels,Michael R. Wasielewski,Vinayak P. Dravid,Arnold Burger,Mercouri G. Kanatzidis +14 more
TL;DR: An improved melt growth method for cesium lead bromide and a special detector design with asymmetrical metal electrode configuration that leads to a high performance at room temperature are reported.
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Ultralarge Hyperpolarizability Twisted π-Electron System Electro-Optic Chromophores: Synthesis, Solid-State and Solution-Phase Structural Characteristics, Electronic Structures, Linear and Nonlinear Optical Properties, and Computational Studies
Hu Kang,Antonio Facchetti,Hua Jiang,Elena Cariati,Stefania Righetto,Renato Ugo,Cristiano Zuccaccia,Alceo Macchioni,Charlotte L. Stern,Zhifu Liu,Seng-Tiong Ho,Eric C. Brown,Mark A. Ratner,Tobin J. Marks +13 more
TL;DR: High-level computations based on state-averaged complete active space self-consistent field (SA-CASSCF) methods provide a new rationale for these exceptional hyperpolarizabilities and demonstrate significant solvation effects on hyperp polarizabilities, in good agreement with experiment.
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Excitonic emissions and above-band-gap luminescence in the single-crystal perovskite semiconductors CsPbB r 3 and CsPbC l 3
Maria Sebastian,John A. Peters,Constantinos C. Stoumpos,Jino Im,Svetlana S. Kostina,Zhifu Liu,Merkouri G Kanatzidis,Arthur J Freeman,Bruce W. Wessels +8 more
TL;DR: In this article, an above-band-gap excitonic photoluminescence (PL) band is seen in both CPs and CPs with perovskite structures.
Journal ArticleDOI
Electromagnetic wave absorbing properties of amorphous carbon nanotubes.
Tingkai Zhao,Cuilin Hou,Hongyan Zhang,Ruoxing Zhu,Shengfei She,Jungao Wang,Tiehu Li,Zhifu Liu,Bingqing Wei +8 more
TL;DR: The experimental results indicated that the electromagnetic wave absorbing properties of ACNTs are superior to multi-walled CNTs, and greatly improved by doping 6 wt% lanthanum nitrate.