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Three-stage coevaporated Copper Indium Gallium diSelenide (CIGSe) solar cells have resulted in the highest efficiency thin-film devices[1]. This success is attributable to copper selenide formation during stage two, promoting grain growth[2]. Herein is the application of secondary copper selenide phases enhancing solar cells made from suspended CIGSe nanoparticles. Larger grains and higher efficiencies...
In summary, we presented plasmonic high-efficiency Au-CdTe nanocomposite films in a three-dimensional construction of repeating layers. These composites integrate Au nanoparticles at a fixed optimal dielectric spacing and plasmon-couple them with CdTe nanocrystal emitters for significantly enhanced emission. In the Au-CdTe nanocomposite film, we showed that the emission of CdTe NCs is increased by...
CuSe and InSe nanoparticles were synthesized using organic solution pyrolysis route. The size and shape of nanoparticles depend on synthesis conditions such as reaction time and injecting reagent order. We achieved the synthesis of InSe nanowires with 5 nm width, 10 um length, hexagonal plate with 100 nm side and CuSe spherical nanoparticles with 20-50 nm diameter. Polycrystalline CuInSe2 film were...
We proposed and demonstrated warm white light generating combinations of semiconductor nanocrystal quantum dot emitters with high photometric quality including high color rendering index (~80) on LED platforms to meet requirements of future lighting. Additionally, we developed and demonstrated of these nanocrystal luminophors with metal nanoparticles to control and enhance their spontaneous emission...
Improvement of dye sensitized solar cell was investigated using methyl-violet dye and nanocrystalline ZnO thin film electrodes. A low cost fabrication method and low cost materials were used to prepare this photocell. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the microstructure and surface properties of dye coated ZnO electrodes. According to the...
We report the visible light emission of organic-inorganic light emitting devices by low-cost spin-coating. Different nanoparticles, CdSe, ZnO and Eu2O3, are employed to form organic-inorganic hybrid composites and generate the R-G-B and white light emission, while N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine (TPD) and polymethyl methacrylate (PMMA) are adopted as the organic matrices...
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