1.5k citations · 2.3k across the 9 of their papers we have counts for
9 papers
Hot electron cooling in InSb probed by ultrafast time-resolved terahertz cyclotron resonance
Chelsea Q. Xia, Maurizio Monti, Jessica L. Boland +4
Measuring terahertz (THz) conductivity on an ultrafast time scale is an excellent way to observe charge-carrier dynamics in semiconductors as a function of time after photoexcitati…
Limits to Electrical Mobility in Lead-Halide Perovskite Semiconductors
Chelsea Q. Xia, Jiali Peng, Samuel Poncé +11
Semiconducting polycrystalline thin films are cheap to produce and can be deposited on flexible substrates, yet high-performance electronic devices usually utilize single-crystal s…
CsInAgCl: A new lead-free halide double perovskite with direct band gap
George Volonakis, Amir A. Haghighirad, Rebecca L. Milot +7
ABBX halide double perovskites based on bismuth and silver have recently been proposed as potential environmentally-friendly alternatives to lead-based hybrid hali…
Perovskite-perovskite tandem photovoltaics with optimized bandgaps
Giles E. Eperon, Tomas Leijtens, Kevin A. Bush +24
We demonstrate four and two-terminal perovskite-perovskite tandem solar cells with ideally matched bandgaps. We develop an infrared absorbing 1.2eV bandgap perovskite, $FA_{0.75}Cs…
Extreme sensitivity of graphene photoconductivity to environmental gases
Callum J. Docherty, Cheng-Te Lin, Hannah J. Joyce +4
Graphene is a single layer of covalently bonded carbon atoms, which was discovered only 8 years ago and yet has already attracted intense research and commercial interest. Initial…
Mesoscopic order and the dimentionality of long-range resonance energy transfer in supramolecular semiconductors
Clement Daniel, Francois Makereel, Laura M. Herz +5
We present time-resolved photoluminescence measurements on two series of oligo-p-phenylenevinylene materials that self-assemble into supramolecular nanostructures with thermotropic…
Charge trapping in polymer transistors probed by terahertz spectroscopy and scanning probe potentiometry
J. Lloyd-Hughes, T. Richards, H. Sirringhaus +3
Terahertz time-domain spectroscopy and scanning probe potentiometry were used to investigate charge trapping in polymer field-effect transistors fabricated on a silicon gate. The h…
Exciton Regeneration at Polymeric Semiconductor Heterojunctions
Arne C. Morteani, Paiboon Sreearunothai, Laura M. Herz +2
Control of the band-edge offsets at heterojunctions between organic semiconductors allows efficient operation of either photovoltaic or light-emitting diodes. We investigate system…
Exciton bimolecular annihilation dynamics in supramolecular nanostructures of conjugated oligomers
Clément Daniel, Laura M. Herz, Carlos Silva +4
We present femtosecond transient absorption measurements on -conjugated supramolecular assemblies in a high pump fluence regime. Oligo(\emph{p}-phenylenevinylene) monofunctional…