Chemically Driven Tunable Light Emission of Charged and Neutral Excitons in Monolayer WS2

N Peimyoo, W Yang, J Shang, X Shen, Y Wang, T Yu - ACS nano, 2014 - ACS Publications
Monolayer (1L) semiconducting transition metal dichacogenides (TMDs) possess
remarkable physical and optical properties, promising for a wide range of applications from …

Long tailed trions in monolayer MoS2: Temperature dependent asymmetry and resulting red-shift of trion photoluminescence spectra

JW Christopher, BB Goldberg, AK Swan - Scientific reports, 2017 - nature.com
Monolayer molybdenum disulfide (MoS2) has emerged as a model system for studying
many-body physics because the low dimensionality reduces screening leading to tightly …

Control of trion-to-exciton conversion in monolayer WS2 by orbital angular momentum of light

R Kesarwani, KB Simbulan, TD Huang, YF Chiang… - Science …, 2022 - science.org
Controlling the density of exciton and trion quasiparticles in monolayer two-dimensional
(2D) materials at room temperature by nondestructive techniques is highly desired for the …

Vacuum level dependent photoluminescence in chemical vapor deposition-grown monolayer MoS2

L Sun, X Zhang, F Liu, Y Shen, X Fan, S Zheng… - Scientific reports, 2017 - nature.com
The stronger photoluminescence (PL) in chemical vapor deposition (CVD) grown monolayer
MoS2 has been attributed to its high crystal quality compared with that in mechanically …

Excitons and excitonic materials

S Datta, X Marie - MRS Bulletin, 2024 - Springer
An exciton is a bound pair of negatively charged electron and positively charged hole
(electron vacancy within a solid), both of which are held together by their mutual Coulomb …

Optically induced trion formation and its control in a MoS 2/graphene van der Waals heterostructure

MG Dastidar, N Basu, IH Kao, J Katoch, PK Nayak… - Nanoscale, 2024 - pubs.rsc.org
Monolayer 2D transition metal dichalcogenides (TMDs) show high sensitivity to the local
dielectric environment, leading to modulation of their optoelectronic properties. Here, we …

Charge Transfer Mediated Photoluminescence Engineering in WS2 Monolayers for Optoelectronic Application

B Luhar, R Dhankhar, RV Nair, A Soni… - ACS Applied Nano …, 2024 - ACS Publications
Optical emissions from two-dimensional transition metal dichalcogenides greatly differ from
sample to sample due to their interactions with different substrates with variations in …

Twisted light-enhanced photovoltaic effect

KB Simbulan, YJ Feng, WH Chang, CI Lu, TH Lu… - ACS …, 2021 - ACS Publications
Twisted light carries a defined orbital angular momentum (OAM) that can enhance forbidden
transitions in atoms and even semiconductors. Such attributes can possibly lead to …

Near-field exciton imaging of chemically treated MoS 2 monolayers

Y Kim, Y Lee, H Kim, S Roy, J Kim - Nanoscale, 2018 - pubs.rsc.org
The exciton-dominated light emission of two-dimensional (2D) semiconductors is
determined largely by the doping state and the formation of defects. Extensive studies have …

Photoinduced charge transfer from vacuum-deposited molecules to single-layer transition metal dichalcogenides

K Osada, M Tanaka, S Ohno… - Japanese Journal of …, 2016 - iopscience.iop.org
Variations of photoluminescence (PL) and Raman spectra of single-layer MoS 2, MoSe 2,
WS 2, and WSe 2 due to the vacuum deposition of C 60 or copper phthalocyanine (CuPc) …