0000000001061131

AUTHOR

Hobeom Kim

showing 2 related works from this author

Advances in solution-processed near-infrared light-emitting diodes

2021

A summary of recent advances in the near-infrared light-emitting diodes that are fabricated by solution-processed means, with coverage of devices based on organic semiconductors, halide perovskites and colloidal quantum dots.

Materials scienceOptical communicationPhysics::Opticsquantum dotsNanotechnologyelectroluminescenceamplified spontaneous emissionCondensed Matter::Materials SciencenanocrystalsNight visionluminescenceMaterialsperovskiteDiodecomplexesNear infrared lightbusiness.industrydiffusionCondensed Matter::Mesoscopic Systems and Quantum Hall EffectAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsSolution processedOrganic semiconductorImproved performanceSemiconductorhighly efficientLàsers de colorantsbusinessdevices
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Phosphine Oxide Derivative as a Passivating Agent to Enhance the Performance of Perovskite Solar Cells

2021

Defects of metal-halide perovskites detrimentally influence the optoelectronic properties of the thin film and, ultimately, the photovoltaic performance of perovskite solar cells (PSCs). Especially, defect-mediated nonradiative recombination that occurs at the perovskite interface significantly limits the power conversion efficiency (PCE) of PSCs. In this regard, interfacial engineering or surface treatment of perovskites has become a viable strategy for reducing the density of surface defects, thereby improving the PCE of PSCs. Here, an organic molecule, tris(5-((tetrahydro-2H-pyran-2-yl)oxy)pentyl) phosphine oxide (THPPO), is synthesized and introduced as a defect passivation agent in PSC…

Phosphine oxideMaterials sciencePhotovoltaic systemEnergy Engineering and Power Technology02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology7. Clean energy01 natural sciences0104 chemical scienceschemistry.chemical_compoundchemistryChemical engineeringMaterials ChemistryElectrochemistryChemical Engineering (miscellaneous)Lewis acids and basesElectrical and Electronic EngineeringThin film0210 nano-technologyÒxidsMaterialsDerivative (chemistry)Cèl·lules fotoelèctriquesPerovskite (structure)ACS Applied Energy Materials
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