170 citations · 218 across the 8 of their papers we have counts for
10 papers
Multimodal operando microscopy reveals that interfacial chemistry and nanoscale performance disorder dictate perovskite solar cell stability
Kyle Frohna, Cullen Chosy, Amran Al-Ashouri +12
Next-generation low-cost semiconductors such as halide perovskites exhibit optoelectronic properties dominated by nanoscale variations in their structure, composition and photophys…
Spatially resolved photoluminescence analysis of Se passivation and defect formation in CdSeTe thin films
Alan R Bowman, Jacob J Leaver, Kyle Frohna +3
CdTe is the most commercially successful thin-film photovoltaic technology to date. The recent development of Se-alloyed CdSeTe layers in CdTe solar cells has led to…
Imaging Light-Induced Migration of Dislocations in Halide Perovskites with 3D Nanoscale Strain Mapping
Kieran W. P. Orr, Jiecheng Diao, Muhammad Naufal Lintangpradipto +14
In recent years, halide perovskite materials have been used to make high performance solar cell and light-emitting devices. However, material defects still limit device performance…
The electronic disorder landscape of mixed halide perovskites
Yun Liu, Jean-Philippe Banon, Kyle Frohna +5
Bandgap tunability of lead mixed-halide perovskites makes them promising candidates for various applications in optoelectronics since they exhibit sharp optical absorption onsets d…
Efficient all-perovskite tandem solar cells by dual-interface optimisation of vacuum-deposited wide-bandgap perovskite
Yu-Hsien Chiang, Kyle Frohna, Hayden Salway +4
Tandem perovskite solar cells beckon as lower cost alternatives to conventional single junction solar cells, with all-perovskite tandem photovoltaic architectures showing power con…
Unraveling the varied nature and roles of defects in hybrid halide perovskites with time-resolved photoemission electron microscopy
Sofiia Kosar, Andrew J. Winchester, Tiarnan A. S. Doherty +9
With rapidly growing photoconversion efficiencies, hybrid perovskite solar cells have emerged as promising contenders for next generation, low-cost photovoltaic technologies. Yet,…
Local Nanoscale Defective Phase Impurities Are the Sites of Degradation in Halide Perovskite Devices
Stuart Macpherson, Tiarnan A. S. Doherty, Andrew J. Winchester +12
Halide perovskites excel in the pursuit of highly efficient thin film photovoltaics, with power conversion efficiencies reaching 25.5% in single junction and 29.5% in tandem halide…
Nanoscale Chemical Heterogeneity Dominates the Optoelectronic Response over Local Electronic Disorder and Strain in Alloyed Perovskite Solar Cells
Kyle Frohna, Miguel Anaya, Stuart Macpherson +7
Halide perovskites perform remarkably in optoelectronic devices including tandem photovoltaics. However, this exceptional performance is striking given that perovskites exhibit dee…
Relaxed current matching requirements in highly luminescent perovskite tandem solar cells and their fundamental efficiency limits
Alan R. Bowman, Felix Lang, Yu-Hsien Chiang +8
Here we use time-resolved and steady-state optical spectroscopy on state-of-the-art low- and high-bandgap perovskite films for tandems to quantify intrinsic recombination rates and…
Revealing nanomechanical domains and their transient behavior in mixed-halide perovskite films
Ioanna Mela, Chetan Poudel, Miguel Anaya +6
Halide perovskites are a versatile class of semiconductors employed for high performance emerging optoelectronic devices, including flexoelectric systems, yet the influence of thei…