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Determination of the exciton binding energy and effective masses for the methylammonium and formamidinium lead tri-halide perovskite family
Krzysztof Galkowski, Anatolie Mitioglu, Atsuhiko Miyata +8
The family of organic-inorganic halide perovskite materials has generated tremendous interest in the field of photovoltaics due to their high power conversion efficiencies. There h…
Independence of Optical Absorption on Auger Ionization in Single-Walled Carbon Nanotubes Revealed by Ultrafast e-h Photodoping
Mitchell D. Anderson, Meghan N. Beattie, Jack A. Alexander-Webber +2
Auger-ionized carriers in a one-dimensional semiconductor are predicted to result in a strong band-gap renormalization. Isolated single-walled carbon nanotubes (SWCNT) under high-i…
Disorder induced Dirac-point physics in epitaxial graphene from temperature-dependent magneto-transport measurements
J. Huang, J. A. Alexander-Webber, A. M. R. Baker +8
We report a study of disorder effects on epitaxial graphene in the vicinity of the Dirac point by magneto-transport. Hall effect measurements show that the carrier density increase…
Direct Measurement of the Exciton Binding Energy and Effective Masses for Charge carriers in an Organic-Inorganic Tri-halide Perovskite
Atsuhiko Miyata, Anatolie Mitioglu, Paulina Plochocka +5
Solar cells based on the organic-inorganic tri-halide perovskite family of materials have shown remarkable progress recently, offering the prospect of low-cost solar energy from de…