Matches in SemOpenAlex for { <https://semopenalex.org/work/W43463284> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W43463284 abstract "TiO2 has been used in photocatalysis and photovoltaics because of its comprehensive combination of energy band structure, carrier transport, and inertness. However, wide band gap and relative slow carrier transport limits its full potential in these applications. 3.2 eV band gap of anatase indicates its low efficiency of utilizing full spectrum of solar light, and, band gap engineering was employed to address this issue. Specifically, nitrogen doping, iron doping, and N/Fe codoping were investigated for their photocatalytic effect. Doping was carried out in hydrothermal reactor by adding aliovalent ions to TiO2 precursor. Both N and Fe doping show the narrowing of band gap compared with the pristine TiO2. N-doping enhances its visible light photocatalytic performance, while Fe-doping and codoping result in poor photocatalysis. Further low temperature fluorescence spectra indicate the high recombination in Fe-doped and co-doped samples. The next issue is the relatively slow carrier transport in TiO2 nanoparticle-based dye sensitized solar cell (DSSC). Single crystalline rutile nanorod was studied in order to overcome this drawback. Synthesis was achieved with the assistance of microwave heating, and reaction rate was boosted due to this unique heating method. The carrier diffusion coefficient and life time of TiCl4 treated nanorod were systematically measured, and surface diffusion model is proposed to interpret observed phenomena. Combining band gap engineering (doping) and carrier transport (nanorod) research, doped nanorod was investigated. It is found that Nb doped nanorod shows higher conductivity, better back contact between FTO and nanorod, easy injection of electron from dye sensitizers to nanorods, and, consequently, less recombination. The efficiency of solar cell from Nb doped nanorod increases by almost 80% comparing with pure nanorod. What’s more, the conductive-AFM with nanoscale resolution provides unprecedented image of current path in nanorod, which could verify carrier transport model and shed light on engineering of nanostructure for superior performance." @default.
- W43463284 created "2016-06-24" @default.
- W43463284 creator A5077340298 @default.
- W43463284 date "2012-06-04" @default.
- W43463284 modified "2023-09-27" @default.
- W43463284 title "Band Gap Engineering and Carrier Transport in TiO2 for Solar Energy Harvesting" @default.
- W43463284 cites W1593545014 @default.
- W43463284 hasPublicationYear "2012" @default.
- W43463284 type Work @default.
- W43463284 sameAs 43463284 @default.
- W43463284 citedByCount "0" @default.
- W43463284 crossrefType "journal-article" @default.
- W43463284 hasAuthorship W43463284A5077340298 @default.
- W43463284 hasConcept C104232198 @default.
- W43463284 hasConcept C126201875 @default.
- W43463284 hasConcept C147789679 @default.
- W43463284 hasConcept C161790260 @default.
- W43463284 hasConcept C171250308 @default.
- W43463284 hasConcept C17525397 @default.
- W43463284 hasConcept C181966813 @default.
- W43463284 hasConcept C185592680 @default.
- W43463284 hasConcept C192562407 @default.
- W43463284 hasConcept C193154288 @default.
- W43463284 hasConcept C2777402863 @default.
- W43463284 hasConcept C48421929 @default.
- W43463284 hasConcept C49040817 @default.
- W43463284 hasConcept C55493867 @default.
- W43463284 hasConcept C57863236 @default.
- W43463284 hasConcept C65165184 @default.
- W43463284 hasConcept C68801617 @default.
- W43463284 hasConceptScore W43463284C104232198 @default.
- W43463284 hasConceptScore W43463284C126201875 @default.
- W43463284 hasConceptScore W43463284C147789679 @default.
- W43463284 hasConceptScore W43463284C161790260 @default.
- W43463284 hasConceptScore W43463284C171250308 @default.
- W43463284 hasConceptScore W43463284C17525397 @default.
- W43463284 hasConceptScore W43463284C181966813 @default.
- W43463284 hasConceptScore W43463284C185592680 @default.
- W43463284 hasConceptScore W43463284C192562407 @default.
- W43463284 hasConceptScore W43463284C193154288 @default.
- W43463284 hasConceptScore W43463284C2777402863 @default.
- W43463284 hasConceptScore W43463284C48421929 @default.
- W43463284 hasConceptScore W43463284C49040817 @default.
- W43463284 hasConceptScore W43463284C55493867 @default.
- W43463284 hasConceptScore W43463284C57863236 @default.
- W43463284 hasConceptScore W43463284C65165184 @default.
- W43463284 hasConceptScore W43463284C68801617 @default.
- W43463284 hasLocation W434632841 @default.
- W43463284 hasOpenAccess W43463284 @default.
- W43463284 hasPrimaryLocation W434632841 @default.
- W43463284 hasRelatedWork W1795209118 @default.
- W43463284 hasRelatedWork W1969075767 @default.
- W43463284 hasRelatedWork W1982323492 @default.
- W43463284 hasRelatedWork W1993476941 @default.
- W43463284 hasRelatedWork W2009201566 @default.
- W43463284 hasRelatedWork W2409612028 @default.
- W43463284 hasRelatedWork W2615526884 @default.
- W43463284 hasRelatedWork W2733194373 @default.
- W43463284 hasRelatedWork W2755830861 @default.
- W43463284 hasRelatedWork W2765316571 @default.
- W43463284 hasRelatedWork W2778216803 @default.
- W43463284 hasRelatedWork W2790186741 @default.
- W43463284 hasRelatedWork W2800948539 @default.
- W43463284 hasRelatedWork W2921151403 @default.
- W43463284 hasRelatedWork W2922545311 @default.
- W43463284 hasRelatedWork W2946315726 @default.
- W43463284 hasRelatedWork W3003298616 @default.
- W43463284 hasRelatedWork W3014056400 @default.
- W43463284 hasRelatedWork W3080090751 @default.
- W43463284 hasRelatedWork W3108355207 @default.
- W43463284 isParatext "false" @default.
- W43463284 isRetracted "false" @default.
- W43463284 magId "43463284" @default.
- W43463284 workType "article" @default.