نتایج جستجو برای: photovoltage curves
تعداد نتایج: 93972 فیلتر نتایج به سال:
Organic/silicon hybrid solar cells have great potential as low-cost, high-efficiency photovoltaic devices. The superior light trapping capability, mediated by the optical resonances, of the organic/silicon hybrid nanostructure-based cells enhances their optical performance. In this work, we fabricated Si nanopillar (NP) arrays coated with organic semiconductor, poly(3-hexylthiophene-2,5-diyl), ...
In solvent-free ionic liquid electrolytes for efficient dye-sensitized solar cells, iodide and non-iodide melts are ordinarily blended in order to attain a high dynamic fluidity and thereby meet a fast mass transport of electroactive species. This common tactic could bring forth a prominent impact of various anions on cell efficiency by altering photocurrent and/or photovoltage. Herein we repor...
The photovoltaic signal associated with the primary photochemical event in an oriented bacteriorhodopsin film is measured by directly probing the electric field in the bacteriorhodopsin film using an ultrafast electro-optic sampling technique. The inherent response time is limited only by the laser pulse width of 500 fs, and permits a measurement of the photovoltage with a bandwidth of better t...
We demonstrate that indium tin oxide nanowires (ITO NWs) and cationic polymer-modified ITO NWs configured in a network format can be used as high performing UV/vis photodetectors. The photovoltage response of ITO NWs is much higher than similarly constructed devices made from tin oxide, zinc tin oxide, and zinc oxide nanostructures. The ITO NW mesh-based devices exhibit a substantial photovolta...
Hybrid protein-metal junctions have potential applications in nanoelectronic devices which can make use of the outstanding catalytic properties of the proteins. Specifically, photoactive proteins are promising materials for optoelectronic applications, such as solar cells and photodetectors.1 However, very little is known about the electronic coupling between proteins and metal surfaces. Even l...
Abstract We demonstrate that the modulated surface photovoltage spectroscopy (modulated SPS) technique can be applied to investigate interface states in bandgap, i.e. passivation, of crystalline silicon coated with a downshift layer such as hydrogenated aluminum nitride embedded terbium ions by suppressing straylight cut-off filter. Different hydrogen contents influence spectra at photon energi...
Tin (II) sulfide (SnS) is a promising semiconductor material for next-generation solar energy conversion due to its favorable bandgap, elemental abundance, low toxicity, and cost. A major challenge, however, lie in the open circuit voltages that are typically obtained SnS-based devices. Herein, low-cost solution-phase deposition technique used prepare SnS thin films investigate different juncti...
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