Search results for "Diffusion Length"

showing 2 items of 2 documents

Photoconductivity and photovoltaic effect in indium selenide

1983

Transport and phototransport properties of crystalline indium monoselenide (InSe) doped with a variety of elements are reported. Measured mobilities, lifetimes, and effective diffusion lengths of photoexcited carriers are used to interpret electrical and photovoltaic properties of several different structures. These include p‐n junctions, bismuth/p‐type InSe, platinum/n‐type InSe, and indium tin oxyde (ITO)/p‐type InSe. External solar efficiencies of the best devices are between 5% and 6%. The influence on the efficiency of the various parameters is evaluated, and ways of improvement are discussed.

Materials sciencePhotoconductivityInorganic chemistryN−Type ConductorsGeneral Physics and Astronomychemistry.chemical_elementPhotovoltaic effectIndium CompoundsEfficiencyCrystalsBismuthPhotovoltaic EffectCharge Carrierschemistry.chemical_compoundP−Type ConductorsIndium Selenides ; Photoconductivity ; Photovoltaic Effect ; Experimental Data ; Crystals ; Doped Materials ; Mobility ; Lifetime ; Diffusion Length ; Charge Carriers ; Electrical Properties ; P−N Junctions ; P−Type Conductors ; N−Type Conductors ; Bismuth ; Platinum ; Indium Compounds ; Tin Oxides ; Efficiency:FÍSICA [UNESCO]SelenideDoped MaterialsPlatinumMobilityIndium Selenidesbusiness.industryPhotoconductivityElectrical PropertiesDopingP−N JunctionsUNESCO::FÍSICATin OxidesDiffusion LengthchemistryOptoelectronicsExperimental DataCharge carrierTinbusinessBismuthIndiumLifetime
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Self-organization and nanostructural control in thin film heterojunctions.

2013

In spite of more than two-decades of studies of molecular self-assembly, the achievement of low cost, easy-to-implement and multi-parameter bottom-up approaches to address the supramolecular morphology in three-dimensional (3D) systems is still missing. In the particular case of molecular thin films, the 3D nanoscale morphology and function are crucial for both fundamental and applied research. Here we show how it is possible to tune the 3D film structure (domain size, branching, etc.) of thin film heterojunctions with nanoscale accuracy together with the modulation of their optoelectronic properties by employing an easy two-step approach. At first we prepared multi-planar heterojunctions w…

Spin coatingMaterials sciencebusiness.industryExcitonSupramolecular chemistryNanotechnologyHeterojunction3D nanopatterning thin films non-equilibrium exciton diffusion length optoelectronic properties bulk heterojunctionsSemiconductorGeneral Materials ScienceThin filmLuminescencebusinessNanoscopic scaleNanoscale
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