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Guo, Dengyang (author), Andaji Garmaroudi, Zahra (author), Abdi-Jalebi, Mojtaba (author), Stranks, Samuel D. (author), Savenije, T.J. (author)The highest reported efficiencies of metal halide perovskite (MHP) solar cells are all based on mixed perovskites, such as (FA,MA,Cs)Pb(I<sub>1-x</sub>Br<sub>x</sub>)<sub>3</sub>. Despite demonstrated structural changes induced by light soaking, it is unclear how the charge carrier dynamics are affected across this entire material family....journal article 2019
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Caselli, V.M. (author), Fischer, Mathias (author), Meggiolaro, Daniele (author), Mosconi, Edoardo (author), De Angelis, Filippo (author), Stranks, Samuel D. (author), Baumann, Andreas (author), Dyakonov, Vladimir (author), Hutter, E.M. (author), Savenije, T.J. (author)Recently, several studies have investigated dielectric properties as a possible origin of the exceptional optoelectronic properties of metal halide perovskites (MHPs). In this study we investigated the temperature-dependent dielectric behavior of different MHP films at different frequencies. In the gigahertz regime, dielectric losses in...journal article 2019
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Brenes, Roberto (author), Guo, Dengyang (author), Osherov, Anna (author), Noel, Nakita K. (author), Eames, Christopher (author), Hutter, E.M. (author), Pathak, Sandeep K. (author), Niroui, Farnaz (author), Friend, Richard H. (author), Islam, M. Saiful (author), Snaith, Henry J. (author), Bulović, Vladimir (author), Savenije, T.J. (author), Stranks, Samuel D. (author)Metal halide perovskites are generating enormous excitement for use in solar cells and light-emission applications, but devices still show substantial non-radiative losses. Here, we show that by combining light and atmospheric treatments, we can increase the internal luminescence quantum efficiencies of polycrystalline perovskite films from 1...journal article 2017
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Hutter, E.M. (author), Gelvez Rueda, M.C. (author), Osherov, Anna (author), Bulović, Vladimir (author), Grozema, F.C. (author), Stranks, Samuel D. (author), Savenije, T.J. (author)Metal halide perovskites such as methylammonium lead iodide (CH<sub>3</sub> NH<sub>3</sub> PbI<sub>3</sub>) are generating great excitement due to their outstanding optoelectronic properties, which lend them to application in high-efficiency solar cells and light-emission devices. However, there is currently debate over what drives the second...journal article 2017
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Hutter, E.M. (author), Sutton, Rebecca J. (author), Chandrashekar, Sanjana (author), Abdi-Jalebi, Mojtaba (author), Stranks, Samuel D. (author), Snaith, Henry J. (author), Savenije, T.J. (author)Metal halide perovskites such as methylammonium lead iodide (MAPbI3) are highly promising materials for photovoltaics. However, the relationship between the organic nature of the cation and the optoelectronic quality remains debated. In this work, we investigate the optoelectronic properties of fully inorganic vapour-deposited and spin-coated...journal article 2017