Sensors: Significant Exciton Brightening in Monolayer Tungsten Disulfides via Fluorination: n‐Type Gas Sensing Semiconductors (Adv. Funct. Mater. 42/2016) | Zendy

Jhon Young In | Zendy; Kim Younghee | Zendy; Park June | Zendy; Kim Jae Hun | Zendy; Lee Taikjin | Zendy; Seo Minah | Zendy; Jhon Young Min | Zendy

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Sensors: Significant Exciton Brightening in Monolayer Tungsten Disulfides via Fluorination: n‐Type Gas Sensing Semiconductors (Adv. Funct. Mater. 42/2016)

Author(s) -

Jhon Young In,

Kim Younghee,

Park June,

Kim Jae Hun,

Lee Taikjin,

Seo Minah,

Jhon Young Min

Publication year - 2016

Publication title -

advanced functional materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 6.069

H-Index - 322

eISSN - 1616-3028

pISSN - 1616-301X

DOI - 10.1002/adfm.201670273

Subject(s) - monolayer , materials science , fluorine , photoluminescence , brightness , exciton , tungsten , semiconductor , dopant , hydrogen , electron density , optoelectronics , analytical chemistry (journal) , electron , chemical physics , chemical engineering , photochemistry , nanotechnology , doping , condensed matter physics , optics , organic chemistry , chemistry , physics , engineering , metallurgy , quantum mechanics

The photoluminescence (PL) in monolayer (1L) WS 2 greatly varies depending on its electron density. A “chemical tuner” for PL variation in 1L WS 2 , is described by Y. M. Jhon and co‐workers on page 7551. Hydrogen and/or fluorine plasma treatments allow for tuning of the PL brightness in a reversible way for unlimited cycles. Even a small amount of fluorine dopants significantly brighten PL in 1L WS 2 due to their strong electron affinity. The approach is successfully applied in NH 3 gas sensing.

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