Examination of Relationship between Urbach Energy and Open-Circuit Voltage Deficit of Flexible Cu(In,Ga)Se2 Solar Cell for Its Improved Photovoltaic Performance
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DOI: 10.1021/acsaem.9b01271
Abstract: Flexible Cu(In,Ga)Se2 (CIGSe) solar cells on stainless steel (SUS) substrates are developed. The contribution concentrates on the investigation of the correlation between their Urbach energy (EU) and open-circuit voltage deficit (VOC,def). The several CIGSe solar… read more here.
Keywords: open circuit; energy; energy open; flexible se2 ... See more keywords
Urbach Energy and Open-Circuit Voltage Deficit for Mixed Anion-Cation Perovskite Solar Cells.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.1c19122
Abstract: The Urbach energy indicating the width of the exponentially decaying sub-bandgap absorption tail is commonly used as the indicator of electronic quality of thin-film materials used as absorbers in solar cells. Urbach energies of hybrid… read more here.
Keywords: anion cation; deficit; solar cells; energy ... See more keywords
Microstrain and Urbach Energy Relaxation in FAPbI3-Based Solar Cells through Powder Engineering and Perfluoroalkyl Phosphate Ionic Liquid Additives.
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DOI: 10.1021/acsami.2c01960
Abstract: Structural and electronic imperfections are the origin of defects and lead to nonradiative recombination that is detrimental to fabricating efficient perovskite solar cells. Here, we propose a powder engineering methodology for α-FAPbI3 as a precursor… read more here.
Keywords: microstrain urbach; methodology; solar cells; urbach energy ... See more keywords
The Electronic Disorder Landscape of Mixed Halide Perovskites
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DOI: 10.1021/acsenergylett.2c02352
Abstract: Band gap tunability of lead mixed halide perovskites makes them promising candidates for various applications in optoelectronics. Here we use the localization landscape theory to reveal that the static disorder due to iodide:bromide compositional alloying… read more here.
Keywords: urbach energy; halide perovskites; landscape; disorder ... See more keywords