FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3126128924> ?p ?o ?g. }

• W3126128924 abstract "Transitions metal dichalcogenides (TMDs) are direct semiconductors in the atomic monolayer (ML) limit with fascinating optical and spin-valley properties. The strong optical absorption of up to 20 % for a single ML is governed by excitons, electron-hole pairs bound by Coulomb attraction. Excited exciton states in MoSe$_2$ and MoTe$_2$ monolayers have so far been elusive due to their low oscillator strength and strong inhomogeneous broadening. Here we show that encapsulation in hexagonal boron nitride results in emission line width of the A:1$s$ exciton below 1.5 meV and 3 meV in our MoSe$_2$ and MoTe$_2$ monolayer samples, respectively. This allows us to investigate the excited exciton states by photoluminescence upconversion spectroscopy for both monolayer materials. The excitation laser is tuned into resonance with the A:1$s$ transition and we observe emission of excited exciton states up to 200 meV above the laser energy. We demonstrate bias control of the efficiency of this non-linear optical process. At the origin of upconversion our model calculations suggest an exciton-exciton (Auger) scattering mechanism specific to TMD MLs involving an excited conduction band thus generating high energy excitons with small wave-vectors. The optical transitions are further investigated by white light reflectivity, photoluminescence excitation and resonant Raman scattering confirming their origin as excited excitonic states in monolayer thin semiconductors." @default.
• W3126128924 created "2021-02-01" @default.
• W3126128924 creator A5008639157 @default.
• W3126128924 creator A5011159521 @default.
• W3126128924 creator A5022946131 @default.
• W3126128924 creator A5023012300 @default.
• W3126128924 creator A5041573207 @default.
• W3126128924 creator A5045096283 @default.
• W3126128924 creator A5045247857 @default.
• W3126128924 creator A5057268563 @default.
• W3126128924 creator A5066772150 @default.
• W3126128924 creator A5067326259 @default.
• W3126128924 creator A5067479351 @default.
• W3126128924 creator A5069535863 @default.
• W3126128924 creator A5089325282 @default.
• W3126128924 date "2018-09-18" @default.
• W3126128924 modified "2023-10-16" @default.
• W3126128924 title "Exciton States in Monolayer <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi>MoSe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math> and <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi>MoTe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math> Probed by Upconversion Spectroscopy" @default.
• W3126128924 cites W1489642512 @default.
• W3126128924 cites W1505185714 @default.
• W3126128924 cites W1529807616 @default.
• W3126128924 cites W1964763238 @default.
• W3126128924 cites W1978213535 @default.
• W3126128924 cites W1980451122 @default.
• W3126128924 cites W1982175240 @default.
• W3126128924 cites W1983190782 @default.
• W3126128924 cites W1996805069 @default.
• W3126128924 cites W1999476436 @default.
• W3126128924 cites W2001415936 @default.
• W3126128924 cites W2013144732 @default.
• W3126128924 cites W2013382779 @default.
• W3126128924 cites W2015979060 @default.
• W3126128924 cites W2017871657 @default.
• W3126128924 cites W2018958741 @default.
• W3126128924 cites W2022792086 @default.
• W3126128924 cites W2032008805 @default.
• W3126128924 cites W2034208526 @default.
• W3126128924 cites W2039141564 @default.
• W3126128924 cites W2041578478 @default.
• W3126128924 cites W2056902973 @default.
• W3126128924 cites W2063576642 @default.
• W3126128924 cites W2069635547 @default.
• W3126128924 cites W2070609214 @default.
• W3126128924 cites W2075160271 @default.
• W3126128924 cites W2077232836 @default.
• W3126128924 cites W2092044679 @default.
• W3126128924 cites W2092774463 @default.
• W3126128924 cites W2096421416 @default.
• W3126128924 cites W2113877978 @default.
• W3126128924 cites W2115786064 @default.
• W3126128924 cites W2125086348 @default.
• W3126128924 cites W2137880050 @default.
• W3126128924 cites W2169515998 @default.
• W3126128924 cites W217605891 @default.
• W3126128924 cites W2218369040 @default.
• W3126128924 cites W2249694920 @default.
• W3126128924 cites W2262305001 @default.
• W3126128924 cites W2267312558 @default.
• W3126128924 cites W2268478421 @default.
• W3126128924 cites W2288414650 @default.
• W3126128924 cites W2295370765 @default.
• W3126128924 cites W2302214730 @default.
• W3126128924 cites W2315341045 @default.
• W3126128924 cites W2324777531 @default.
• W3126128924 cites W2335370736 @default.
• W3126128924 cites W2335838175 @default.
• W3126128924 cites W2394220539 @default.
• W3126128924 cites W2404100716 @default.
• W3126128924 cites W2407651634 @default.
• W3126128924 cites W2409147716 @default.
• W3126128924 cites W2418742657 @default.
• W3126128924 cites W2498106012 @default.
• W3126128924 cites W2515589925 @default.
• W3126128924 cites W2530472134 @default.
• W3126128924 cites W2530689698 @default.
• W3126128924 cites W2531860704 @default.
• W3126128924 cites W2533215342 @default.
• W3126128924 cites W2539582486 @default.
• W3126128924 cites W2541072406 @default.
• W3126128924 cites W2572983492 @default.
• W3126128924 cites W2575913027 @default.
• W3126128924 cites W2576902401 @default.
• W3126128924 cites W2581330389 @default.
• W3126128924 cites W2584172842 @default.
• W3126128924 cites W2584731490 @default.
• W3126128924 cites W2600335003 @default.
• W3126128924 cites W2612581801 @default.
• W3126128924 cites W2620170373 @default.
• W3126128924 cites W2622575641 @default.
• W3126128924 cites W2623887652 @default.
• W3126128924 cites W2731138056 @default.
• W3126128924 cites W2739441393 @default.
• W3126128924 cites W2751355924 @default.
• W3126128924 cites W2762027359 @default.
• W3126128924 cites W2765233410 @default.
• W3126128924 cites W2765729541 @default.
• W3126128924 cites W2772911570 @default.
• W3126128924 cites W2786976754 @default.
• W3126128924 cites W2790793019 @default.
• W3126128924 cites W2797911950 @default.

• next