Sökning: onr:"swepub:oai:DiVA.org:kth-296202" >
Super-resolved Opti...
Super-resolved Optical Mapping of Reactive Sulfur-Vacancies in Two-Dimensional Transition Metal Dichalcogenides
-
- Zhang, Miao, 1985- (författare)
- KTH,Material- och nanofysik,Fotonik,Ecole Polytech Fed Lausanne EPFL, Inst Bioengn, Lab Nanoscale Biol, Sch Engn, CH-1015 Lausanne, Switzerland.;KTH Royal Inst Technol, Dept Appl Phys, S-10691 Stockholm, Sweden.
-
- Lihter, Martina (författare)
- Ecole Polytech Fed Lausanne EPFL, Inst Bioengn, Lab Nanoscale Biol, Sch Engn, CH-1015 Lausanne, Switzerland.
-
- Chen, Tzu-Heng (författare)
- Ecole Polytech Fed Lausanne EPFL, Inst Bioengn, Lab Nanoscale Biol, Sch Engn, CH-1015 Lausanne, Switzerland.
-
visa fler...
-
- Macha, Michal (författare)
- Ecole Polytech Fed Lausanne EPFL, Inst Bioengn, Lab Nanoscale Biol, Sch Engn, CH-1015 Lausanne, Switzerland.
-
- Rayabharam, Archith (författare)
- Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA.
-
- Banjac, Karla (författare)
- Ecole Polytech Fed Lausanne EPFL, Max Planck EPFL Lab Mol Nanosci, CH-1015 Lausanne, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Inst Phys, CH-1015 Lausanne, Switzerland.
-
- Zhao, Yanfei (författare)
- Ecole Polytech Fed Lausanne EPFL, Elect Engn Inst, CH-1015 Lausanne, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Inst Mat Sci & Engn, CH-1015 Lausanne, Switzerland.
-
- Wang, Zhenyu (författare)
- Ecole Polytech Fed Lausanne EPFL, Elect Engn Inst, CH-1015 Lausanne, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Inst Mat Sci & Engn, CH-1015 Lausanne, Switzerland.
-
- Zhang, Jing (författare)
- Ecole Polytech Fed Lausanne EPFL, Elect Engn Inst, CH-1015 Lausanne, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Inst Mat Sci & Engn, CH-1015 Lausanne, Switzerland.
-
- Comtet, Jean (författare)
- Ecole Polytech Fed Lausanne EPFL, Inst Bioengn, Lab Nanoscale Biol, Sch Engn, CH-1015 Lausanne, Switzerland.
-
- Aluru, Narayana R. (författare)
- Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA.
-
- Lingenfelder, Magali (författare)
- Ecole Polytech Fed Lausanne EPFL, Max Planck EPFL Lab Mol Nanosci, CH-1015 Lausanne, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Inst Phys, CH-1015 Lausanne, Switzerland.
-
- Kis, Andras (författare)
- Ecole Polytech Fed Lausanne EPFL, Elect Engn Inst, CH-1015 Lausanne, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Inst Mat Sci & Engn, CH-1015 Lausanne, Switzerland.
-
- Radenovic, Aleksandra (författare)
- Ecole Polytech Fed Lausanne EPFL, Inst Bioengn, Lab Nanoscale Biol, Sch Engn, CH-1015 Lausanne, Switzerland.
-
visa färre...
-
(creator_code:org_t)
- 2021-04-08
- 2021
- Engelska.
-
Ingår i: ACS Nano. - : American Chemical Society (ACS). - 1936-0851 .- 1936-086X. ; 15:4, s. 7168-7178
- Relaterad länk:
-
https://hal.archives...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Transition metal dichalcogenides (TMDs) represent a class of semiconducting two-dimensional (2D) materials with exciting properties. In particular, defects in 2D-TMDs and their molecular interactions with the environment can crucially affect their physical and chemical properties. However, mapping the spatial distribution and chemical reactivity of defects in liquid remains a challenge. Here, we demonstrate large area mapping of reactive sulfur-deficient defects in 2D-TMDs in aqueous solutions by coupling single-molecule localization microscopy with fluorescence labeling using thiol chemistry. Our method, reminiscent of PAINT strategies, relies on the specific binding of fluorescent probes hosting a thiol group to sulfur vacancies, allowing localization of the defects with an uncertainty down to 15 nm. Tuning the distance between the fluorophore and the docking thiol site allows us to control Foster resonance energy transfer (FRET) process and reveal grain boundaries and line defects due to the local irregular lattice structure. We further characterize the binding kinetics over a large range of pH conditions, evidencing the reversible adsorption of the thiol probes to the defects with a subsequent transitioning to irreversible binding in basic conditions. Our methodology provides a simple and fast alternative for large-scale mapping of nonradiative defects in 2D materials and can be used for in situ and spatially resolved monitoring of the interaction between chemical agents and defects in 2D materials that has general implications for defect engineering in aqueous condition.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- 2D materials
- defects
- super-resolution
- thiol chemistry
- sulfur vacancy
- interface
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
-
ACS Nano
(Sök värdpublikationen i LIBRIS)
Till lärosätets databas
- Av författaren/redakt...
-
Zhang, Miao, 198 ...
-
Lihter, Martina
-
Chen, Tzu-Heng
-
Macha, Michal
-
Rayabharam, Arch ...
-
Banjac, Karla
-
visa fler...
-
Zhao, Yanfei
-
Wang, Zhenyu
-
Zhang, Jing
-
Comtet, Jean
-
Aluru, Narayana ...
-
Lingenfelder, Ma ...
-
Kis, Andras
-
Radenovic, Aleks ...
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
-
och Den kondenserade ...
- Artiklar i publikationen
-
ACS Nano
- Av lärosätet
-
Kungliga Tekniska Högskolan