The growth parameters affecting the deposition of self-assembled InAs quantum dots （QDs） on GaAs substrate by low-pressure metal-organic chemical vapor deposition （MOCVD） are reported. The low-density InAs QDs （-...The growth parameters affecting the deposition of self-assembled InAs quantum dots （QDs） on GaAs substrate by low-pressure metal-organic chemical vapor deposition （MOCVD） are reported. The low-density InAs QDs （- 5 × 10^8cm^-2） are achieved using high growth temperature and low InAs coverage. Photoluminescence （PL） measurements show the good optical quality of low-density QDs. At room temperature, the ground state peak wavelength of PL spectrum and full-width at half-maximum （FWHM） are 1361 nm and 23 meV （35 nm）, respectively, which are obtained as the GaAs capping layer grown using triethylgallium （TEG） and tertiallybutylarsine （TBA）. The PL spectra exhibit three emission peaks at 1361, 1280, and 1204 nm, which correspond to the ground state, the first excited state, and the second excited state of the ODs, respectively.展开更多
Dear Editor,Reoviruses are non-enveloped icosahedral virions with an outer capsid surrounding their cores,which harbor the10–12 segmented double-stranded RNA(ds RNA)genome.To date,there are 15 proposed genera in the ...Dear Editor,Reoviruses are non-enveloped icosahedral virions with an outer capsid surrounding their cores,which harbor the10–12 segmented double-stranded RNA(ds RNA)genome.To date,there are 15 proposed genera in the family Reoviridae(King et al.,2012),including Aquareovirus.Generally,aquareoviruses are of low pathogenicity in aquaculture.However,grass carp reovirus(GCRV)is展开更多
文摘The growth parameters affecting the deposition of self-assembled InAs quantum dots （QDs） on GaAs substrate by low-pressure metal-organic chemical vapor deposition （MOCVD） are reported. The low-density InAs QDs （- 5 × 10^8cm^-2） are achieved using high growth temperature and low InAs coverage. Photoluminescence （PL） measurements show the good optical quality of low-density QDs. At room temperature, the ground state peak wavelength of PL spectrum and full-width at half-maximum （FWHM） are 1361 nm and 23 meV （35 nm）, respectively, which are obtained as the GaAs capping layer grown using triethylgallium （TEG） and tertiallybutylarsine （TBA）. The PL spectra exhibit three emission peaks at 1361, 1280, and 1204 nm, which correspond to the ground state, the first excited state, and the second excited state of the ODs, respectively.
基金supported in part by grants from the National Natural Science Foundation of China(31372565,31400139)the State Key Laboratory of Freshwater Ecology and Biotechnology(2013FB05)support from“The Core Facility and Technical Support of Wuhan Institute of Virology”
文摘Dear Editor,Reoviruses are non-enveloped icosahedral virions with an outer capsid surrounding their cores,which harbor the10–12 segmented double-stranded RNA(ds RNA)genome.To date,there are 15 proposed genera in the family Reoviridae(King et al.,2012),including Aquareovirus.Generally,aquareoviruses are of low pathogenicity in aquaculture.However,grass carp reovirus(GCRV)is
