Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Photoluminescence quenching"”.
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Photoluminescence quenching of organic thin films by transparent conductive oxides
… organic light-emitting diodes is luminescence quenching near an electrode. In this work, we investigate the underlying mechanism behind luminescence quenching by measuring the reduction in Alq3 photoluminescence due to SnO02. Using an analytical model and a Monte Carlo simulation for exciton …
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Carbon dots as sustainable photocatalysts for organic synthesis
… C-O and C-N bond formation. Additionally, photoluminescence quenching and transient absorption studies were undertaken to further examine the interaction between the CDs and Ni-catalyst, as well as gain insight into the CD states involved in the reaction. The data suggests the possible …
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Polymer/Fullerene Photovoltaic Devices - Nanoscale Control of the Interface by Thermally-controlled Interdiffusion
… occurs. Measurements of the absorption, photoluminescence, and photocurrent spectra as well as I-V characteristics are used to study the interdiffusion and its influence on the efficiency of the photovoltaic devices. In addition, the film morphology is studied on a microscopic level with …
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Synthesis and Characterization of pure-phase Zr-MOFs Based on meso-Tetra(4-carboxyphenyl)porphine
… aspects of energy transfer. Stern-Volmer photoluminescence quenching of PCN-223(fb) suspensions was performed to extract quenching rate constants and gain insight into the efficiency of energy transfer. Chapter 4: The fourth chapter of this thesis is adapted from chapter 14 of the book …
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Semiconductor nanochemistry and hybrid polymer photovoltaics
… TEM, CV, AFM, HRTEM, EDX, XPS, absorption, and photoluminescence spectroscopy. The first solar cells were produced based on CdTe nanoparticle - polymer composites. <br>CdSe is an important material used for a large number of applications like solar cells, LEDs, biological sensors, catalysts etc. …
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Heavy-metal-free colloidal nanocrystal heterostructures – synthetic chemistry and growth mechanisms
… the heterostructures, as well as to improve the photoluminescence quantum yield (PL QY) of nanocrystals. We first examine how different Cu precursors in the synthesis of colloidal copper sulfide (Cu2-xS) nanocrystals affect the resulting shape and phase. Decreasing aspect ratio in 1D nanorods …