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- Publications
- Influence
Magnetic field effects in hybrid perovskite devices
- Chuang Zhang, D. Sun, +4 authors Z. Vardeny
- Materials Science, Physics
- 4 March 2015
Perovskite photovoltaics are the fastest-advancing solar technology but the mechanisms responsible for their performance are not clear. The observation of magnetic field effects in hybrid perovskites… Expand
Giant Rashba splitting in 2D organic-inorganic halide perovskites measured by transient spectroscopies
- Y. Zhai, Sangita Baniya, +5 authors Z. Vardeny
- Materials Science, Medicine
- Science Advances
- 1 July 2017
Transient and CW spectroscopies unravel giant Rashba splitting in 2D hybrid perovskite multilayers. Two-dimensional (2D) layered hybrid organic-inorganic halide perovskite semiconductors form natural… Expand
Gated electronic currents modulation and designs of logic gates with single molecular field effect transistors
The electronic transport properties of a gated single 1,3-benzenedithiol molecular device are studied by using nonequilibrium Green's function in combination with density functional theory, which is… Expand
Magnetic Domain Wall Formation in Ferromagnetic Wires With a Nanoconstriction
The magnetization distribution and the formation of magnetic domain wall (DW) in ferromagnetic metal wires with a nanoscale constriction have been investigated in details using the micromagnetic… Expand
Assessment of levelized cost of electricity for a 10-MW solar chimney power plant in Yinchuan China
- Penghua Guo, Y. Zhai, Xinhai Xu, Jingyin Li
- Engineering
- 15 November 2017
Abstract Solar chimney power plant (SCPP) is a promising renewable energy technology that needs policy support and market cultivation at the early stage of its development. An accurate prediction of… Expand
Exciton versus free carrier photogeneration in organometal trihalide perovskites probed by broadband ultrafast polarization memory dynamics.
- C. Sheng, Chuang Zhang, +5 authors Z. Vardeny
- Materials Science, Medicine
- Physical review letters
- 18 March 2015
We studied the ultrafast transient response of photoexcitations in two hybrid organic-inorganic perovskite films used for high efficiency photovoltaic cells, namely, CH(3)NH(3)PbI(3) and… Expand
Crafting Core/Graded Shell-Shell Quantum Dots with Suppressed Re-absorption and Tunable Stokes Shift as High Optical Gain Materials.
- Jaehan Jung, Chun Hao Lin, +6 authors Zhiqun Lin
- Materials Science, Medicine
- Angewandte Chemie
- 11 April 2016
The key to utilizing quantum dots (QDs) as lasing media is to effectively reduce non-radiative processes, such as Auger recombination and surface trapping. A robust strategy to craft a set of… Expand
Spin-optoelectronic devices based on hybrid organic-inorganic trihalide perovskites
- J. Wang, Chuang Zhang, +11 authors Z. Vardeny
- Materials Science, Medicine
- Nature Communications
- 10 January 2019
Recently the hybrid organic-inorganic trihalide perovskites have shown remarkable performance as active layers in photovoltaic and other optoelectronic devices. However, their spin characteristic… Expand
Impact of Layer Thickness on the Charge Carrier and Spin Coherence Lifetime in Two-Dimensional Layered Perovskite Single Crystals
- Xihan Chen, H. Lu, +6 authors M. C. Beard
- Materials Science
- 28 August 2018
We report the charge carrier recombination rate and spin coherence lifetimes in single crystals of two-dimensional (2D) Ruddlesden–Popper perovskites PEA2PbI4·(MAPbI3)n−1 (PEA, phenethylammonium; MA,… Expand
Singlet fission of hot excitons in π-conjugated polymers
- Y. Zhai, C. Sheng, Z. Vardeny
- Materials Science, Medicine
- Philosophical Transactions of the Royal Society A…
- 28 June 2015
We used steady-state photoinduced absorption (PA), excitation dependence (EXPA(ω)) spectrum of the triplet exciton PA band, and its magneto-PA (MPA(B)) response to investigate singlet fission (SF) of… Expand