Matches in SemOpenAlex for { <https://semopenalex.org/work/W1545254024> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W1545254024 abstract "Semiconducting layered structures can now be fabricated with precisely defined layer thicknesses down to one monolayer. An example is the ``superlattice`` (SL) structure, in which to semiconductors with different band gaps are interleaved. The electronic and optical properties of the SL are quite different from those of the constitutents and offer interesting new possibilities both in device design and in basic physics. This proposal aims to improve our understanding of optically excited states in SL`s, particularly in the so-called ``Type 2 indirect`` SL`s in which in electron and hole created by optical excitation are separated both in real and in momentum space. We study these structures by time-resolved tunable laser spectroscopy, with and without external perturbations such as magnetic field, electric field, and uniaxial stress. In SLs with only a few atomic layers per period the familiar ``effective mass model`` of semiconductor states breaks down. We have made precise optical experiments on well-characterized material to test current ``first principles`` calculations of the band structure. Our work under this grant has shown that the material we are using is of sufficiently high quality to test the theoretical predictions. Comparison of theory and experiment provides a new and sensitive probe of the interface quality on a fine scale. Statistical analysis of the temperature dependence of the exciton decay dynamics provides complementary information. From a careful study of the exciton spectra of the recently discovered mixed type 1- type 2 CdTe/CdZnTe SLs we have obtained the band offset at the CdTe/CdZnTe interface to unprecedented accuracy." @default.
- W1545254024 created "2016-06-24" @default.
- W1545254024 creator A5001382354 @default.
- W1545254024 creator A5052859054 @default.
- W1545254024 creator A5054579861 @default.
- W1545254024 date "1992-06-01" @default.
- W1545254024 modified "2023-09-27" @default.
- W1545254024 title "Excitons in semiconducting superlattices, quantum wells, and ternary alloys. Progress report, September 15, 1991--May 31, 1992" @default.
- W1545254024 doi "https://doi.org/10.2172/10154848" @default.
- W1545254024 hasPublicationYear "1992" @default.
- W1545254024 type Work @default.
- W1545254024 sameAs 1545254024 @default.
- W1545254024 citedByCount "0" @default.
- W1545254024 crossrefType "report" @default.
- W1545254024 hasAuthorship W1545254024A5001382354 @default.
- W1545254024 hasAuthorship W1545254024A5052859054 @default.
- W1545254024 hasAuthorship W1545254024A5054579861 @default.
- W1545254024 hasBestOaLocation W15452540243 @default.
- W1545254024 hasConcept C103272658 @default.
- W1545254024 hasConcept C105382558 @default.
- W1545254024 hasConcept C108225325 @default.
- W1545254024 hasConcept C120665830 @default.
- W1545254024 hasConcept C121332964 @default.
- W1545254024 hasConcept C125469278 @default.
- W1545254024 hasConcept C171250308 @default.
- W1545254024 hasConcept C17729963 @default.
- W1545254024 hasConcept C179764930 @default.
- W1545254024 hasConcept C181966813 @default.
- W1545254024 hasConcept C192562407 @default.
- W1545254024 hasConcept C199360897 @default.
- W1545254024 hasConcept C26873012 @default.
- W1545254024 hasConcept C29169072 @default.
- W1545254024 hasConcept C41008148 @default.
- W1545254024 hasConcept C47592295 @default.
- W1545254024 hasConcept C49040817 @default.
- W1545254024 hasConcept C520434653 @default.
- W1545254024 hasConcept C62520636 @default.
- W1545254024 hasConcept C64452783 @default.
- W1545254024 hasConcept C7070889 @default.
- W1545254024 hasConceptScore W1545254024C103272658 @default.
- W1545254024 hasConceptScore W1545254024C105382558 @default.
- W1545254024 hasConceptScore W1545254024C108225325 @default.
- W1545254024 hasConceptScore W1545254024C120665830 @default.
- W1545254024 hasConceptScore W1545254024C121332964 @default.
- W1545254024 hasConceptScore W1545254024C125469278 @default.
- W1545254024 hasConceptScore W1545254024C171250308 @default.
- W1545254024 hasConceptScore W1545254024C17729963 @default.
- W1545254024 hasConceptScore W1545254024C179764930 @default.
- W1545254024 hasConceptScore W1545254024C181966813 @default.
- W1545254024 hasConceptScore W1545254024C192562407 @default.
- W1545254024 hasConceptScore W1545254024C199360897 @default.
- W1545254024 hasConceptScore W1545254024C26873012 @default.
- W1545254024 hasConceptScore W1545254024C29169072 @default.
- W1545254024 hasConceptScore W1545254024C41008148 @default.
- W1545254024 hasConceptScore W1545254024C47592295 @default.
- W1545254024 hasConceptScore W1545254024C49040817 @default.
- W1545254024 hasConceptScore W1545254024C520434653 @default.
- W1545254024 hasConceptScore W1545254024C62520636 @default.
- W1545254024 hasConceptScore W1545254024C64452783 @default.
- W1545254024 hasConceptScore W1545254024C7070889 @default.
- W1545254024 hasLocation W15452540241 @default.
- W1545254024 hasLocation W15452540242 @default.
- W1545254024 hasLocation W15452540243 @default.
- W1545254024 hasOpenAccess W1545254024 @default.
- W1545254024 hasPrimaryLocation W15452540241 @default.
- W1545254024 hasRelatedWork W185239828 @default.
- W1545254024 hasRelatedWork W1958224702 @default.
- W1545254024 hasRelatedWork W1968490242 @default.
- W1545254024 hasRelatedWork W2017494833 @default.
- W1545254024 hasRelatedWork W2063736394 @default.
- W1545254024 hasRelatedWork W2073184883 @default.
- W1545254024 hasRelatedWork W2091732172 @default.
- W1545254024 hasRelatedWork W4205360862 @default.
- W1545254024 hasRelatedWork W4226174520 @default.
- W1545254024 hasRelatedWork W4307962443 @default.
- W1545254024 isParatext "false" @default.
- W1545254024 isRetracted "false" @default.
- W1545254024 magId "1545254024" @default.
- W1545254024 workType "report" @default.