activity
20142022
most citedLocal polar fluctuations in lead halide perovskite crystals

699 citations · 1.3k across the 7 of their papers we have counts for

collaborators

7 papers

physics.optics2022★ 102 cited

Indefinite and Bidirectional Near Infrared Nanocrystal Photoswitching

Changhwan Lee, Emma Z. Xu, Kevin W. C. Kwock +14

Materials whose luminescence can be switched by optical stimulation drive technologies ranging from superresolution imaging1-4, nanophotonics5, and optical data storage6-8, to targ…

cond-mat.mtrl-sci2018★ 15 cited

Size-dependent lattice dynamics of atomically precise cadmium selenide quantum dots

Chenyang Shi, Alexander N. Beecher, Yan Li +5

Material properties depend sensitively on the atomic arrangements and atomic bonding, but these are notoriously difficult to measure in nanosized atomic clusters due to the small s…

cond-mat.mtrl-sci2018

Liquid-like Free Carrier Solvation and Band Edge Luminescence in Lead-Halide Perovskites

Yinsheng Guo, Omer Yaffe, Trevor D. Hull +3

We report a strongly temperature dependent luminescence Stokes shift in the electronic spectra of both hybrid and inorganic lead-bromide perovskite single crystals. This behavior s…

cond-mat.mtrl-sci2017★ 119 cited

Interplay between organic cations and inorganic framework and incommensurability in hybrid lead-halide perovskite CH3NH3PbBr3

Yinsheng Guo, Omer Yaffe, Daniel W. Paley +6

Organic-inorganic coupling in the hybrid lead-halide perovskite is a central issue in rationalizing the outstanding photovoltaic performance of these emerging materials. Here we co…

cond-mat.mtrl-sci2016★ 310 cited

Direct Observation of Dynamic Symmetry Breaking above Room Temperature in Methylammonium Lead Iodide Perovskite

Alexander N. Beecher, Octavi E. Semonin, Jonathan M. Skelton +7

Lead halide perovskites such as methylammonium lead triiodide (MAPI) have outstanding optical and electronic properties for photovoltaic applications, yet a full understanding of h…

cond-mat.mtrl-sci2016★ 699 cited

Local polar fluctuations in lead halide perovskite crystals

Omer Yaffe, Yinsheng Guo, Liang Z. Tan +11

Hybrid lead-halide perovskites have emerged as an excellent class of photovoltaic materials. Recent reports suggest that the organic molecular cation is responsible for local polar…

physics.optics2014★ 23 cited

Time-resolved energy transfer from single chloride terminated nanocrystals to graphene

O. A. Ajayi, N. C. Anderson, M. Cotlet +7

We examine the time-resolved resonance energy transfer of excitons from single n-butyl amine-bound, chloride-terminated nanocrystals to two-dimensional graphene through time-correl…