activity
20082021
most citedOn giant piezoresistance effects in silicon nanowires and microwires

137 citations · 411 across the 23 of their papers we have counts for

collaborators

23 papers

cond-mat.mes-hall2021

Efficient valley polarization of charged excitons and resident carriers in MoS2 monolayers by optical pumping

Sangjun Park, Steve Arscott, Takashi Taniguchi +3

We investigate with polarized microphotoluminescence the optical pumping of the valley degree of freedom in charge-tunable MoS2 monolayers encapsulated with hexagonal boron nitride…

physics.app-ph2020

Piezoresistance in defect-engineered silicon

H. Li, A. Thayil, C. T. K. Lew +5

The steady-state, space-charge-limited piezoresistance (PZR) of defect-engineered, silicon-on-insulator device layers containing silicon divacancy defects changes sign as a functio…

cond-mat.mes-hall2018★ 6 cited

Mechanical stress dependence of the Fermi level pinning on an oxidized silicon surface

H. Li, L. Martinelli, F. Cadiz +4

A combination of micro-Raman spectroscopy and micro-XPS (X-ray photo-electron spectroscopy) mapping on statically deflected p-type silicon cantilevers is used to study the mechanic…

cond-mat.mes-hall2018★ 3 cited

Giant, anomalous piezo-impedance of silicon-on-insulator

Heng Li, Christopher Tao-Kuan Lew, Brett Johnson +3

A giant, anomalous piezo-response of fully-depleted silicon-on-insulator (FD-SOI) devices under mechanical stress is demonstrated using impedance spectroscopy. This piezo-response…

cond-mat.soft2017★ 6 cited

When is a surface foam-phobic or foam-philic?

Miguel A. C. Teixeira, Steve Arscott, Simon J. Cox +1

By integrating the Young-Laplace equation, including the effects of gravity, we have calculated the equilibrium shape of the two-dimensional Plateau borders along which a vertical…

cond-mat.mtrl-sci2016★ 9 cited

Spin and recombination dynamics of excitons and free electrons in p-type GaAs : effect of carrier density

F. Cadiz, D. Lagarde, P. Renucci +5

Carrier and spin recombination are investigated in p-type GaAs of acceptor concentration NA = 1.5 x 10^(17) cm^(-3) using time-resolved photoluminescence spectroscopy at 15 K. At l…