activity
20042020
most citedLocal polar fluctuations in lead halide perovskite crystals

699 citations · 1.7k across the 12 of their papers we have counts for

collaborators

12 papers

cond-mat.mtrl-sci2020

Multiple-excitation study of the double-resonance Raman bands in rhombohedral graphite

Sergio L. L. M. Ramos, Marcos A. Pimenta, Ana Champi

The double-resonance (DR) Raman process is a signature of all sp2 carbon material and provide fundamental information of the electronic structure and phonon dispersion in graphene,…

cond-mat.mes-hall2019★ 51 cited

Nonlinear dark-field imaging of 1D defects in monolayer dichalcogenides

Bruno R. Carvalho, Yuanxi Wang, Kazunori Fujisawa +10

Extended defects with one dimensionality smaller than that of the host, such as 2D grain boundaries in 3D materials or 1D grain boundaries in 2D materials, can be particularly dama…

cond-mat.mes-hall2017★ 186 cited

Achieving Large, Tunable Strain in Monolayer Transition-Metal Dichalcogenides

Abdollah, M. Dadgar, Declan Scullion +7

We describe a facile technique based on polymer encapsulation to apply several percent controllable strains to monolayer and few-layer Transition Metal Dichalcogenides (TMDs). We u…

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★ 97 cited

Edge phonons in black phosphorus

H. B. Ribeiro, C. E. P. Villegas, D. A. Bahamon +6

Exfoliated black phosphorus has recently emerged as a new two-dimensional crystal that, due to its peculiar and anisotropic crystalline and electronic band structures, may have pot…

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…