Matches in SemOpenAlex for { <https://semopenalex.org/work/W2952017888> ?p ?o ?g. }
- W2952017888 abstract "The optical response of (InGa)(AsSb)/GaAs quantum dots (QDs) grown on GaP (001) substrates is studied by means of excitation and temperature-dependent photoluminescence (PL), and it is related to their complex electronic structure. Such QDs exhibit concurrently direct and indirect transitions, which allows the swapping of $mathrm{ensuremath{Gamma}}$ and $L$ quantum confined states in energy, depending on details of their stoichiometry. Based on realistic data on QD structure and composition, derived from high-resolution transmission electron microscopy (HRTEM) measurements, simulations by means of $mathbf{k}ifmmodecdotelsetextperiodcenteredfi{}mathbf{p}$ theory are performed. The theoretical prediction of both momentum direct and indirect type-I optical transitions are confirmed by the experiments presented here. Additional investigations by a combination of Raman and photoreflectance spectroscopy show modifications of the hydrostatic strain in the QD layer, depending on the sequential addition of QDs and capping layer. A variation of the excitation density across four orders of magnitude reveals a 50-meV energy blueshift of the QD emission. Our findings suggest that the assignment of the type of transition, based solely by the observation of a blueshift with increased pumping, is insufficient. We propose therefore a more consistent approach based on the analysis of the character of the blueshift evolution with optical pumping, which employs a numerical model based on a semi-self-consistent configuration interaction method." @default.
- W2952017888 created "2019-06-27" @default.
- W2952017888 creator A5002459212 @default.
- W2952017888 creator A5026825334 @default.
- W2952017888 creator A5032518062 @default.
- W2952017888 creator A5053340230 @default.
- W2952017888 creator A5077503686 @default.
- W2952017888 creator A5081832783 @default.
- W2952017888 date "2019-11-06" @default.
- W2952017888 modified "2023-10-17" @default.
- W2952017888 title "Optical response of (InGa)(AsSb)/GaAs quantum dots embedded in a GaP matrix" @default.
- W2952017888 cites W1439140339 @default.
- W2952017888 cites W1570756778 @default.
- W2952017888 cites W1608769535 @default.
- W2952017888 cites W1637233379 @default.
- W2952017888 cites W1670736431 @default.
- W2952017888 cites W1675607889 @default.
- W2952017888 cites W1964015061 @default.
- W2952017888 cites W1970141480 @default.
- W2952017888 cites W1972911913 @default.
- W2952017888 cites W1974706159 @default.
- W2952017888 cites W1980628582 @default.
- W2952017888 cites W1984660074 @default.
- W2952017888 cites W1984915310 @default.
- W2952017888 cites W1985291307 @default.
- W2952017888 cites W1985338945 @default.
- W2952017888 cites W1987217112 @default.
- W2952017888 cites W1990161394 @default.
- W2952017888 cites W1990219264 @default.
- W2952017888 cites W1990958135 @default.
- W2952017888 cites W1992539212 @default.
- W2952017888 cites W2001751274 @default.
- W2952017888 cites W2001879556 @default.
- W2952017888 cites W2003660417 @default.
- W2952017888 cites W2005406798 @default.
- W2952017888 cites W2006271366 @default.
- W2952017888 cites W2007654395 @default.
- W2952017888 cites W2013618835 @default.
- W2952017888 cites W2014967118 @default.
- W2952017888 cites W2015848473 @default.
- W2952017888 cites W2015984027 @default.
- W2952017888 cites W2017039403 @default.
- W2952017888 cites W2021008069 @default.
- W2952017888 cites W2025158948 @default.
- W2952017888 cites W2027204653 @default.
- W2952017888 cites W2027497005 @default.
- W2952017888 cites W2027943088 @default.
- W2952017888 cites W2030307019 @default.
- W2952017888 cites W2032451642 @default.
- W2952017888 cites W2032720875 @default.
- W2952017888 cites W2036513327 @default.
- W2952017888 cites W2037569690 @default.
- W2952017888 cites W2037934718 @default.
- W2952017888 cites W2039569003 @default.
- W2952017888 cites W2041443953 @default.
- W2952017888 cites W2046119950 @default.
- W2952017888 cites W2049498856 @default.
- W2952017888 cites W2050676706 @default.
- W2952017888 cites W2051134149 @default.
- W2952017888 cites W2051307234 @default.
- W2952017888 cites W2053174050 @default.
- W2952017888 cites W2060785857 @default.
- W2952017888 cites W2061793328 @default.
- W2952017888 cites W2062495863 @default.
- W2952017888 cites W2063212783 @default.
- W2952017888 cites W2064227881 @default.
- W2952017888 cites W2066438543 @default.
- W2952017888 cites W2068481654 @default.
- W2952017888 cites W2069779440 @default.
- W2952017888 cites W2071387826 @default.
- W2952017888 cites W2072964830 @default.
- W2952017888 cites W2073764424 @default.
- W2952017888 cites W2078801345 @default.
- W2952017888 cites W2081217877 @default.
- W2952017888 cites W2088685135 @default.
- W2952017888 cites W2089069889 @default.
- W2952017888 cites W2089300786 @default.
- W2952017888 cites W2089841885 @default.
- W2952017888 cites W2090083220 @default.
- W2952017888 cites W2090129598 @default.
- W2952017888 cites W2090159880 @default.
- W2952017888 cites W2090591456 @default.
- W2952017888 cites W2094677458 @default.
- W2952017888 cites W2095568255 @default.
- W2952017888 cites W2097729860 @default.
- W2952017888 cites W2100784247 @default.
- W2952017888 cites W2101209210 @default.
- W2952017888 cites W2102251296 @default.
- W2952017888 cites W2104997994 @default.
- W2952017888 cites W2113755634 @default.
- W2952017888 cites W2132933699 @default.
- W2952017888 cites W2133154267 @default.
- W2952017888 cites W2141014647 @default.
- W2952017888 cites W2144244783 @default.
- W2952017888 cites W2145375372 @default.
- W2952017888 cites W2155807612 @default.
- W2952017888 cites W2313443923 @default.
- W2952017888 cites W2315843238 @default.
- W2952017888 cites W2338336782 @default.
- W2952017888 cites W2405529309 @default.