Sofiia Kosar
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View article: Indium‐Free Recombination Layer for Perovskite‐Based Multijunction‐Solar‐Cells‐ with Improved Performance Using Sputtered Zinc Tin Oxide
Indium‐Free Recombination Layer for Perovskite‐Based Multijunction‐Solar‐Cells‐ with Improved Performance Using Sputtered Zinc Tin Oxide Open
Monolithic two‐terminal perovskite‐based multijunction solar cells are considered as the next generation technology in the photovoltaic market, thanks to their high power conversion efficiency at potentially low production costs. In these …
View article: Imaging Locally Inhomogeneous Properties of Metal Halide Perovskites
Imaging Locally Inhomogeneous Properties of Metal Halide Perovskites Open
Metal halide perovskites (MHPs) are a perfect example of state‐of‐the‐art photovoltaic materials whose compositional and structural diversity, coupled with utilization of low‐temperature processing, can undesirably result in spatially inho…
View article: Mitigating Delamination in Perovskite/Silicon Tandem Solar Modules
Mitigating Delamination in Perovskite/Silicon Tandem Solar Modules Open
As perovskite/silicon tandem solar cells head toward industrialization, one emerging challenge relates to the mechanical reliability of these organic–inorganic multilayer devices. Herein, the fracture toughness and interfacial strength of …
View article: Time-resolved photoemission electron microscopy of semiconductor interfaces
Time-resolved photoemission electron microscopy of semiconductor interfaces Open
Semiconductor interfaces are at the heart of the functionality of many devices for opto-electronic applications. At these interfaces, the importance of ultrafast dynamics – processes that occur on sub-nanosecond timescales – has been long …
View article: Unraveling the varied nature and roles of defects in hybrid halide\n perovskites with time-resolved photoemission electron microscopy
Unraveling the varied nature and roles of defects in hybrid halide\n perovskites with time-resolved photoemission electron microscopy Open
With rapidly growing photoconversion efficiencies, hybrid perovskite solar\ncells have emerged as promising contenders for next generation, low-cost\nphotovoltaic technologies. Yet, the presence of nanoscale defect clusters, that\nform dur…
View article: Local Nanoscale Defective Phase Impurities Are the Sites of Degradation in Halide Perovskite Devices
Local Nanoscale Defective Phase Impurities Are the Sites of Degradation in Halide Perovskite Devices Open
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 perovskite/silicon solar cell configurations. Operational …
View article: Local Nanoscale Defective Phase Impurities Are the Sites of Degradation\n in Halide Perovskite Devices
Local Nanoscale Defective Phase Impurities Are the Sites of Degradation\n in Halide Perovskite Devices Open
Halide perovskites excel in the pursuit of highly efficient thin film\nphotovoltaics, with power conversion efficiencies reaching 25.5% in single\njunction and 29.5% in tandem halide perovskite/silicon solar cell\nconfigurations. Operation…
View article: Unraveling the varied nature and roles of defects in hybrid halide perovskites with time-resolved photoemission electron microscopy
Unraveling the varied nature and roles of defects in hybrid halide perovskites with time-resolved photoemission electron microscopy Open
Hybrid halide perovskites are found to contain multiple types of nanoscale defects that play varied roles in charge trapping – from highly detrimental to relatively benign.
View article: Research Data Supporting Visualising Performance-Limiting Nanoscale Trap Clusters at Grain Junctions in Halide Perovskites
Research Data Supporting Visualising Performance-Limiting Nanoscale Trap Clusters at Grain Junctions in Halide Perovskites Open
This repository contains data necessary to reproduce figures and results from the associated manuscript. Files included contain data from scanning electron diffraction , photo emission electron microscopy, scanning transmission electron mi…
View article: Charge transfer dynamics in conjugated polymer/MoS<sub>2</sub>organic/2D heterojunctions
Charge transfer dynamics in conjugated polymer/MoS<sub>2</sub>organic/2D heterojunctions Open
We demonstrate electron transfer from monolayer MoS2to three different organic semiconducting conjugated polymers.