134 citations · 468 across the 12 of their papers we have counts for
13 papers
Impact of crystallinity on the circular and linear dichroism signals in chiral perovskite
Reshna Shrestha, Wanyi Nie
Chiral perovskites owing to their broken mirror symmetry exhibit selective absorption of circularly polarized light manifesting a strong circular dichroism (CD). CD spectroscopy ha…
Unconventional Spintronics from Chiral Perovskites
Yuntian Liu, Reshna Shrestha, Konstantin Denisov +4
Spintronic devices typically employ heterostructures with ferromagnets which break time-reversal symmetry and have non-vanishing magnetization. With the growing class of materials…
Data Mining and Computational Screening of Rashba-Dresselhaus Splitting and Optoelectronic Properties in Two-Dimensional Perovskite Materials
Robert Stanton, Wanyi Nie, Sergei Tretiak +1
Recent developments highlighting the promise of two-dimensional perovskites have vastly increased the compositional search space in the perovskite family. This presents a great opp…
Chirality transfer from chiral perovskite to molecular dopants via charge transfer states
Guan-Lin Chen, Hsinhan Tsai, Aaron Forde +8
Chiral perovskites are emerging semiconducting materials with broken symmetry that can selectively absorb and emit circularly polarized light. However, most of the chiral perovskit…
Intersubband Transitions in Lead Halide Perovskite-Based Quantum Wells for Mid-Infrared Detectors
Xinxin Li, Wanyi Nie, Xuedan Ma
Due to their excellent optical and electrical properties as well as versatile growth and fabrication processes, lead halide perovskites have been widely considered as promising can…
Billion-pixel X-ray camera (BiPC-X)
Zhehui Wang, Kaitlin Anagnost, Cris W. Barnes +11
The continuing improvement in quantum efficiency (above 90% for single visible photons), reduction in noise (below 1 electron per pixel), and shrink in pixel pitch (less than 1 mic…
Comparative studies of optoelectrical properties of prominent PV materials: Halide Perovskite, CdTe, and GaAs
Fan Zhang, Jose F. Castaneda, Shangshang Chen +13
We compare three representative high performance PV materials: halide perovskite MAPbI3, CdTe, and GaAs, in terms of photoluminescence (PL) efficiency, PL lineshape, carrier diffus…
The role of lattice mismatch on the emergence of surface states in 2D hybrid perovskite quantum wells
M. Kepenekian, B. Traore, J. -C. Blancon +9
Surface states are ubiquitous to semiconductors and significantly impact the physical properties and consequently the performance of optoelectronic devices. Moreover, surface effec…
Unusual thickness dependence of exciton characteristics in 2D perovskite quantum wells
J. -C. Blancon, A. V. Stier, H. Tsai +12
Understanding the nature and energy distribution of optical resonances is of central importance in low-dimensional materials and its knowledge is critical for designing eff…
A Physics-based Analytical Model for Perovskite Solar Cells
Xingshu Sun, Reza Asadpour, Wanyi Nie +2
Perovskites are promising next-generation absorber materials for low-cost and high-efficiency solar cells. Although perovskite cells are configured similar to the classical solar c…
Magneto-electroluminescence of organic heterostructures: Analytical theory and spectrally resolved measurements
Feilong Liu, Megan R. Kelley, Scott A. Crooker +4
The effect of a magnetic field on the electroluminescence of organic light emitting devices originates from the hyperfine interaction between the electron/hole polarons and the hyd…
Spectrally-resolved hyperfine interactions between polaron and nuclear spins in organic light emitting diodes: Magneto-EL studies
S. A. Crooker, F. Liu, M. R. Kelley +7
We use spectrally-resolved magneto-electroluminescence (EL) measurements to study the energy dependence of hyperfine interactions between polaron and nuclear spins in organic LEDs.…
Reduced graphene oxide thin films as ultrabarriers for organic electronics
Hisato Yamaguchi, Jimmy Granstrom, Wanyi Nie +8
Encapsulation of electronic devices based on organic materials that are prone to degradation even under normal atmospheric conditions with hermetic barriers is crucial for increasi…