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Large‐Scale Synthesis of Flexible, Stable, and Transparent MoS 2 Quantum Dots‐Polyvinyl Alcohol Sensing Film
Author(s) -
Song Shanliang,
Wang Xiaojie,
Wang Chuanxi,
Wen Zhuoqi,
Yang Yizhou,
Liu Hou,
Yang Minghui,
Lin Quan
Publication year - 2018
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201800189
Subject(s) - polyvinyl alcohol , materials science , composite number , quantum dot , polymer , coating , thermal stability , molybdenum disulfide , nanotechnology , optoelectronics , fluorescence , transparency (behavior) , chemical engineering , composite material , optics , computer science , physics , computer security , engineering
The transparent light emitting molybdenum disulfide quantum dots‐polyvinyl alcohol (MoS 2 QDs‐PVA) polymer composite film with high optical performance is fabricated through a drop‐coating method. Particularly, the functional composite film possesses good transparency and flexibility, and it can be easily rolled into any shape. Moreover, the film shows mechanical stability, stretchability, and high thermal and storage stability. Importantly, the values of pH can be imparted directly by the fluorescence color changes of the MoS 2 QDs‐PVA film without the further complex instruments, and the MoS 2 QDs‐PVA film has a good reproducibility of pHs. The pH test paper is also utilized for visual sensing of pH in the bacterial culture solution, and satisfactory results are obtained. It is believed that the transparency and foldable light‐emitting MoS 2 QDs‐PVA polymer composite film can bring a bright prospect in the field of development of functional films emitting various fluorescent colors, and they have great potential applications in the sensing area.