Matches in SemOpenAlex for { <https://semopenalex.org/work/W3041022585> ?p ?o ?g. }
- W3041022585 abstract "Energy relaxation of photo-excited charge carriers is of significant fundamental interest and crucial for the performance of monolayer (1L) transition metal dichaclogenides (TMDs) in optoelectronics. We measure light scattering and emission in 1L-WSe$_2$ close to the laser excitation energy (down to~$sim$0.6meV). We detect a series of periodic maxima in the hot photoluminescence intensity, stemming from energy states higher than the A-exciton state, in addition to sharp, non-periodic Raman lines related to the phonon modes. We find a period $sim$15meV for peaks both below (Stokes) and above (anti-Stokes) the laser excitation energy. We detect 7 maxima from 78K to room temperature in the Stokes signal and 5 in the anti-Stokes, of increasing intensity with temperature. We assign these to phonon cascades, whereby carriers undergo phonon-induced transitions between real states in the free-carrier gap with a probability of radiative recombination at each step. We infer that intermediate states in the conduction band at the $Lambda$-valley of the Brillouin zone participate in the cascade process of 1L-WSe$_2$. The observations explain the primary stages of carrier relaxation, not accessible so far in time-resolved experiments. This is important for optoelectronic applications, such as photodetectors and lasers, because these determine the recovery rate and, as a consequence, the devices' speed and efficiency." @default.
- W3041022585 created "2020-07-16" @default.
- W3041022585 creator A5003212511 @default.
- W3041022585 creator A5008639157 @default.
- W3041022585 creator A5022946131 @default.
- W3041022585 creator A5030921116 @default.
- W3041022585 creator A5045247857 @default.
- W3041022585 creator A5052942207 @default.
- W3041022585 creator A5061886400 @default.
- W3041022585 creator A5073469283 @default.
- W3041022585 date "2020-07-10" @default.
- W3041022585 modified "2023-09-27" @default.
- W3041022585 title "Efficient phonon cascades in hot photoluminescence of WSe$_2$ monolayers" @default.
- W3041022585 cites W1489642512 @default.
- W3041022585 cites W1965355951 @default.
- W3041022585 cites W1980119814 @default.
- W3041022585 cites W1980451122 @default.
- W3041022585 cites W1985231755 @default.
- W3041022585 cites W1987112645 @default.
- W3041022585 cites W1989908383 @default.
- W3041022585 cites W1992917825 @default.
- W3041022585 cites W1999026248 @default.
- W3041022585 cites W1999476436 @default.
- W3041022585 cites W2015160114 @default.
- W3041022585 cites W2016267290 @default.
- W3041022585 cites W2019041583 @default.
- W3041022585 cites W2022952393 @default.
- W3041022585 cites W2038008960 @default.
- W3041022585 cites W2038681594 @default.
- W3041022585 cites W2039418304 @default.
- W3041022585 cites W2044429296 @default.
- W3041022585 cites W2052228433 @default.
- W3041022585 cites W2056888761 @default.
- W3041022585 cites W2084381102 @default.
- W3041022585 cites W2107432007 @default.
- W3041022585 cites W2108445472 @default.
- W3041022585 cites W2109085020 @default.
- W3041022585 cites W2122195656 @default.
- W3041022585 cites W2125086348 @default.
- W3041022585 cites W2134233006 @default.
- W3041022585 cites W2137880050 @default.
- W3041022585 cites W2141415026 @default.
- W3041022585 cites W2167452346 @default.
- W3041022585 cites W2171017401 @default.
- W3041022585 cites W2288414650 @default.
- W3041022585 cites W2335370736 @default.
- W3041022585 cites W2498106012 @default.
- W3041022585 cites W2508920067 @default.
- W3041022585 cites W2579961345 @default.
- W3041022585 cites W2581330389 @default.
- W3041022585 cites W2586254017 @default.
- W3041022585 cites W2586637063 @default.
- W3041022585 cites W2617412099 @default.
- W3041022585 cites W2620146093 @default.
- W3041022585 cites W2739441393 @default.
- W3041022585 cites W2790793019 @default.
- W3041022585 cites W2797911950 @default.
- W3041022585 cites W2884016533 @default.
- W3041022585 cites W2884346629 @default.
- W3041022585 cites W2954491711 @default.
- W3041022585 cites W2964741280 @default.
- W3041022585 cites W2965292780 @default.
- W3041022585 cites W3005544012 @default.
- W3041022585 cites W3020452496 @default.
- W3041022585 cites W3043261292 @default.
- W3041022585 cites W3099465791 @default.
- W3041022585 cites W3100084227 @default.
- W3041022585 cites W3101420062 @default.
- W3041022585 cites W3105678514 @default.
- W3041022585 cites W3106852064 @default.
- W3041022585 cites W624006623 @default.
- W3041022585 cites W1992631155 @default.
- W3041022585 hasPublicationYear "2020" @default.
- W3041022585 type Work @default.
- W3041022585 sameAs 3041022585 @default.
- W3041022585 citedByCount "0" @default.
- W3041022585 crossrefType "journal-article" @default.
- W3041022585 hasAuthorship W3041022585A5003212511 @default.
- W3041022585 hasAuthorship W3041022585A5008639157 @default.
- W3041022585 hasAuthorship W3041022585A5022946131 @default.
- W3041022585 hasAuthorship W3041022585A5030921116 @default.
- W3041022585 hasAuthorship W3041022585A5045247857 @default.
- W3041022585 hasAuthorship W3041022585A5052942207 @default.
- W3041022585 hasAuthorship W3041022585A5061886400 @default.
- W3041022585 hasAuthorship W3041022585A5073469283 @default.
- W3041022585 hasBestOaLocation W30410225851 @default.
- W3041022585 hasConcept C120665830 @default.
- W3041022585 hasConcept C121332964 @default.
- W3041022585 hasConcept C148869448 @default.
- W3041022585 hasConcept C15744967 @default.
- W3041022585 hasConcept C169573571 @default.
- W3041022585 hasConcept C181500209 @default.
- W3041022585 hasConcept C184779094 @default.
- W3041022585 hasConcept C192562407 @default.
- W3041022585 hasConcept C24169881 @default.
- W3041022585 hasConcept C26873012 @default.
- W3041022585 hasConcept C2776029896 @default.
- W3041022585 hasConcept C40003534 @default.
- W3041022585 hasConcept C49040817 @default.
- W3041022585 hasConcept C520434653 @default.