Matches in SemOpenAlex for { <https://semopenalex.org/work/W236236879> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W236236879 abstract "One potential, long-term approach to more efficient future generation solar cells is to utilize the unique properties of quantum dots (QDs) and unique molecular chromophores to control the relaxation pathways of excited states to produce enhanced conversion efficiency through efficient multiple electron-hole pair generation from single photons . We have observed efficient multiple exciton generation (MEG) in PbSe, PbS, PbTe, and Si QDs and efficient singlet fission (SF) in molecules that satisfy specific requirements for their excited state energy level structure to achieve carrier multiplication. We have studied MEG in close-packed QD arrays where the QDs are electronically coupled in the films and thus exhibit good transport while still maintaining quantization and MEG. We have developed simple, all-inorganic QD solar cells that produce large short-circuit photocurrents and power conversion efficiencies in the 3-5% range via both nanocrystalline Schottky junctions and nanocrystalline p-n junctions. These solar cells also show QYs for photocurrent that exceed 100% in the photon energy regions where MEG is possible; the photocurrent MEG QYs as a function of photon energy match those determined via time-resolved spectroscopy. We have also observed very efficient SF in thin films of molecular crystals of 1,3 diphenylisobenzofuran with quantum yields of 200%more » at the optimum SF threshold of 2Eg (HOMO-LUMO for S{sub 0}-S{sub 1}), reflecting the creation of two excited triplet states from the first excited singlet state. Various possible configurations for novel solar cells based on MEG in QDs and SF in molecules that could produce high conversion efficiencies will be presented, along with progress in developing such new types of solar cells. Recent analyses of the effect of MEG or SF combined with solar concentration on the conversion efficiency of solar cells will be discussed.« less" @default.
- W236236879 created "2016-06-24" @default.
- W236236879 creator A5018298417 @default.
- W236236879 creator A5019019852 @default.
- W236236879 creator A5032901544 @default.
- W236236879 creator A5039708770 @default.
- W236236879 creator A5049180739 @default.
- W236236879 creator A5074710362 @default.
- W236236879 creator A5079661688 @default.
- W236236879 creator A5081833092 @default.
- W236236879 date "2012-01-01" @default.
- W236236879 modified "2023-09-23" @default.
- W236236879 title "Approaches to Future Generation Photovoltaics and Solar Fuels: Multiple Exciton Generation in Quantum Dots, Quantum Dot Arrays, Molecular Singlet Fission, and Quantum Dot Solar Cells" @default.
- W236236879 hasPublicationYear "2012" @default.
- W236236879 type Work @default.
- W236236879 sameAs 236236879 @default.
- W236236879 citedByCount "0" @default.
- W236236879 crossrefType "journal-article" @default.
- W236236879 hasAuthorship W236236879A5018298417 @default.
- W236236879 hasAuthorship W236236879A5019019852 @default.
- W236236879 hasAuthorship W236236879A5032901544 @default.
- W236236879 hasAuthorship W236236879A5039708770 @default.
- W236236879 hasAuthorship W236236879A5049180739 @default.
- W236236879 hasAuthorship W236236879A5074710362 @default.
- W236236879 hasAuthorship W236236879A5079661688 @default.
- W236236879 hasAuthorship W236236879A5081833092 @default.
- W236236879 hasConcept C121332964 @default.
- W236236879 hasConcept C124657808 @default.
- W236236879 hasConcept C161522054 @default.
- W236236879 hasConcept C181500209 @default.
- W236236879 hasConcept C184779094 @default.
- W236236879 hasConcept C18903297 @default.
- W236236879 hasConcept C192562407 @default.
- W236236879 hasConcept C2779845233 @default.
- W236236879 hasConcept C2780824857 @default.
- W236236879 hasConcept C33062035 @default.
- W236236879 hasConcept C41291067 @default.
- W236236879 hasConcept C49040817 @default.
- W236236879 hasConcept C542589376 @default.
- W236236879 hasConcept C58041110 @default.
- W236236879 hasConcept C86803240 @default.
- W236236879 hasConceptScore W236236879C121332964 @default.
- W236236879 hasConceptScore W236236879C124657808 @default.
- W236236879 hasConceptScore W236236879C161522054 @default.
- W236236879 hasConceptScore W236236879C181500209 @default.
- W236236879 hasConceptScore W236236879C184779094 @default.
- W236236879 hasConceptScore W236236879C18903297 @default.
- W236236879 hasConceptScore W236236879C192562407 @default.
- W236236879 hasConceptScore W236236879C2779845233 @default.
- W236236879 hasConceptScore W236236879C2780824857 @default.
- W236236879 hasConceptScore W236236879C33062035 @default.
- W236236879 hasConceptScore W236236879C41291067 @default.
- W236236879 hasConceptScore W236236879C49040817 @default.
- W236236879 hasConceptScore W236236879C542589376 @default.
- W236236879 hasConceptScore W236236879C58041110 @default.
- W236236879 hasConceptScore W236236879C86803240 @default.
- W236236879 hasLocation W2362368791 @default.
- W236236879 hasOpenAccess W236236879 @default.
- W236236879 hasPrimaryLocation W2362368791 @default.
- W236236879 hasRelatedWork W1677709335 @default.
- W236236879 hasRelatedWork W1970506374 @default.
- W236236879 hasRelatedWork W2001128599 @default.
- W236236879 hasRelatedWork W2012893406 @default.
- W236236879 hasRelatedWork W2012993046 @default.
- W236236879 hasRelatedWork W2025080696 @default.
- W236236879 hasRelatedWork W2243939940 @default.
- W236236879 hasRelatedWork W2283249694 @default.
- W236236879 hasRelatedWork W2336215249 @default.
- W236236879 hasRelatedWork W2339877889 @default.
- W236236879 hasRelatedWork W2397361579 @default.
- W236236879 hasRelatedWork W2604329653 @default.
- W236236879 hasRelatedWork W2613249247 @default.
- W236236879 hasRelatedWork W268891886 @default.
- W236236879 hasRelatedWork W2947144112 @default.
- W236236879 hasRelatedWork W3084861318 @default.
- W236236879 hasRelatedWork W3092615162 @default.
- W236236879 hasRelatedWork W3126077573 @default.
- W236236879 hasRelatedWork W79927949 @default.
- W236236879 hasRelatedWork W2126543281 @default.
- W236236879 isParatext "false" @default.
- W236236879 isRetracted "false" @default.
- W236236879 magId "236236879" @default.
- W236236879 workType "article" @default.