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Showing 1 to 16 of 16 for “"Photovoltaic Effect"”.
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Studies of Thermal Emission Rates and Optical Cross-Sections of Carriers at Gold Centers in Silicon Using the Impurity Photovoltaic Effect
Made available in DSpace on 2015-05-12T21:41:53Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7000999.PDF: 8031245 bytes, checksum: fd46fca9713c000f5839d6f2d6e6f25d (MD5) Previous issue date: 1969
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Studies of thermal emission rates and optical cross sections of carriers at gold centers in silicons using the impurity photovoltaic effect
… presented. This method is known as the impurity photovoltaic effect. The basic idea of the impurity photovoltaic effect is to study the photo-response of a reverse biased PIN junction that, is doped with the impurity of interest. The energy of the incident photons is less than, the forbidden …
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Simulation of polymer solar cell characteristics by amps-1d
… cells by current-voltage (I-V) simulations. Photovoltaic effect permits the conversion of sunlight to electrical energy by excitons. Excitons travel from highest unoccupied molecular orbital (HOMO) level of conjugated polymer material to lowest unoccupied molecular orbital (LUMO) level of …
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Limitation of lithium fluoride (LiF) properties for passivation layer in organic solar cells application
… the energy of light into electrical energy using photovoltaic effect. Nowadays, global warming and emission of greenhouse effect are the sources of the destruction of our mother nature. One of the best organic solar cell is polymer-fullerene cell with poly (3-hexylthiopene) (P3HT) as the donor and …
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Studies on Optically Induced DC-Voltage in Thin Film Structures
… voltage. It does not rely on the photoelectric effect, which is at the origin of the photovoltaic effect in semiconductor devices. It works based on hot electron emission in plasmonic nanostructures. This photodetector, which is amenable to large-area fabrication, can be integrated with other …
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Ab initio study of nonlinear and vibrationally-controlled optoelectronic responses in semiconductors
… material without an interface. This bulk photovoltaic effect (BPVE) shows promise for sensing applications, characterization of quantum materials, and higher efficiency power conversion, but some aspects remain poorly understood. We first outline a materials design strategy to predict …
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Full spectrum utilization for high-efficiency solar energy conversion
… solar energy harvesting exist: solar thermal and photovoltaic. Solar thermal energy harvesting offers the distinct ability to both utilize the full solar spectrum and provide dispatchable electrical power to the grid. By contrast, the generation of power via the photovoltaic effect can reduce the …
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Investigation of electrical, optical and mechanical control of ferroelectric domains using scanning probe microscopy
… enhanced to 30,000 nm/s by the cumulative effect of light and low electric fields (< 4 kV/mm). The light illumination on this material is found to tune the material’s electrical conductivity by orders of magnitude and the charge injection due to illumination is governed by the ferroelectric …
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Experimental and Numerical Investigation on Photostrictive Materials for Mems Application
… of high intensity light. Photostrictive effect is a superposition effect of the photovoltaic and converse-piezoelectric effects. Incident light generates a large photovoltage due to the photovoltaic effect, and an induced large voltage produces strain due to the converge-piezoelectric …
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Nanostructured BaTiO3 Thin Films for Enhanced Photoresponse
… in this field. On the one hand, the bulk photovoltaic effect (BPV) allows spontaneous separation of photoexcited electron-hole pairs, simplifying device architectures. On the other hand, switchable polarization endows ferroelectric devices with memory and data processing functions. Despite …
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Broadband High Efficiency Fractal-Like and Diverse Geometry Silicon Nanowire Arrays for Photovoltaic Applications
… directly into electrical energy is by using the photovoltaic solar cells (PVSC). Despite PVSC are becoming economically competitive, they still have high cost and low light to electricity conversion efficiency. Therefore, increasing the efficiency and reducing the cost are key elements for …
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Enhancing the Photovoltaic Performance of P3HT/PDIB Silsesquioxane Donor-Acceptor System Using Spray Deposition Fabrication Technique
… more importance by meeting the demands for cost effective photovoltaic devices. To date, the focus of the organic photovoltaic devices has been on the optimization of the processing the materials to improve photo conversion efficiency and also by modifying the active components of the organic …
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Laser beam induced current studies of Hg1-xCdxTe photodiodes
… to Nui's theoretical model for the lateral photovoltaic effect (LPE) has also been developed such that bulk recombination, surface recombination and junction leakage are taken into consideration. A study of the forward problem has revealed that the LBIC of a diode is the product of two …
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Νέα υλικά για τη μετατροπή της ηλιακής ενέργειας σε ηλεκτρισμό
Στην παρούσα διατριβή δοκιμάστηκαν καινοτόμα υλικά ως προς τις δυνατότητές τους να χρησιμοποιηθούν σε διατάξεις μετατροπής της ηλιακής ενέργειας σε ηλεκτρισμό. Τα συμβατικά ηλιακά στοιχεία, τα αποκαλούμενα και φωτοβολταϊκά πρώτης γενιάς, αποτελούνται από κρυσταλλικό πυρίτιο το οποίο με κατάλληλες …