Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids
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2019
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555422820907262 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-bgsu15554228209072622021-08-03T07:10:19Z Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids Royo Romero, Luis Physical Chemistry Inorganic Chemistry Physics quantum dots optoelectronic devices nanocrystals inorganic semiconductors The fast-developing field of inorganic optoelectronic devices offers a valuable approachto control many of their properties. However, their functionality is constraint by the differentlimitation in nanocrystals and bulk properties. Digestive ripening (DR) is a technique to improvethe size homogeneity of nanocrystals. The DR process in semiconductors lies in the thermalcoalescence triggering the control over the particle size and size dispersion for temperaturesabove the threshold value (Tth = 200 – 220 °C). Such control allows the development of inverseenergy-gradient core/shell nanocrystal architectures, an assembly that exhibits quantum confinedproperties in a nanoparticle larger than the exciton Bohr radius, which addresses many of thethin-film limits on interparticle boundaries and thus electrical resistance. The core/shell geometrypromotes the localization of exciton in the shell domain, highlighted under the excitonic energytransfer interaction between a colloidal semiconductor and various nanoscale species. Furtherinvestigations look into plasmon-induced resonance energy transfer (PIRET) to convert theplasmon-concentrated field into useful energy by coupling plasmon evanescent field to asemiconductor absorber via a dipole-dipole interaction. This unexplored field has a promisingconversation of light in photovoltaics devices. The band gap emission of fabricated nanoshells,with diameter sizes ranging from 15 – 30 nm, revealed the size-dependent tunability with anassociated quantum yield in the 4.4 – 16.0% range. This thesis will also inform on strategies forprobing the energy transfer in nanocrystal-based assemblies, some challenges associated with theapplication of PIRET mechanisms in nanostructure systems and extend many of the approachesto beyond semiconductors and nanoparticles morphologies. 2019-05-03 English text Bowling Green State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555422820907262 http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555422820907262 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Physical Chemistry Inorganic Chemistry Physics quantum dots optoelectronic devices nanocrystals inorganic semiconductors |
| spellingShingle |
Physical Chemistry Inorganic Chemistry Physics quantum dots optoelectronic devices nanocrystals inorganic semiconductors Royo Romero, Luis Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids |
| author |
Royo Romero, Luis |
| author_facet |
Royo Romero, Luis |
| author_sort |
Royo Romero, Luis |
| title |
Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids |
| title_short |
Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids |
| title_full |
Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids |
| title_fullStr |
Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids |
| title_full_unstemmed |
Optoelectronic Characteristics of Inorganic Nanocrystals and Their Solids |
| title_sort |
optoelectronic characteristics of inorganic nanocrystals and their solids |
| publisher |
Bowling Green State University / OhioLINK |
| publishDate |
2019 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555422820907262 |
| work_keys_str_mv |
AT royoromeroluis optoelectroniccharacteristicsofinorganicnanocrystalsandtheirsolids |
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1719455178914004992 |