Sökning: onr:"swepub:oai:research.chalmers.se:fe3b318a-5e1b-4258-b281-eaaad8220e28" >
Manipulation of exc...
Manipulation of exciton and trion quasiparticles in monolayer WS2 via charge transfer
-
- Gaur, A.P.S. (författare)
- University of Puerto Rico,Iowa State University
-
- Rivera, A.M. (författare)
- University of Puerto Rico
-
- Dash, Saroj Prasad, 1975 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
visa fler...
-
- Dey, Sandwip (författare)
- Arizona State University
-
- Katiyar, R.S. (författare)
- University of Puerto Rico
-
- Sahoo, S. (författare)
- Homi Bhabha National Institute (HBNI)
-
visa färre...
-
(creator_code:org_t)
- AIP Publishing, 2019
- 2019
- Engelska.
-
Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 115:17
- Relaterad länk:
-
https://research.cha... (primary) (free)
-
visa fler...
-
https://research.cha...
-
https://research.cha...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Charge doping in transition metal dichalcogenide is currently a subject of high importance for future electronic and optoelectronic applications. Here, we demonstrate chemical doping in the CVD-grown monolayer (1L) of WS2 by a few commonly used laboratory solvents by investigating the room temperature photoluminescence (PL). The appearance of distinct trionic emission in the PL spectra and quenched PL intensities suggests n-type doping in WS2. The temperature-dependent PL spectra of the doped 1L-WS2 reveal a significant enhancement of trions emission intensity over the excitonic emission at low temperature, indicating the stability of trion at low temperature. The temperature-dependent exciton-trion population dynamic has been modeled using the law of mass action of trion formation. These results shed light on the solution-based chemical doping in 1L-WS2 and its profound effect on the photoluminescence which is essential for the control of optical and electrical properties for optoelectronic applications.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas