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Patterned carbon dot-based thin films for solid-state devices
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DOI：10.1039/c9nr08904g.png)
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Abstract
En 中文
Carbon dot-based fluorescent nanocomposite compounds were obtained following microwave assisted thermal treatment of an aqueous mixture consisting of citric acid and urea. Thin film deposition of nanocomposites on SiO2 (100) substrates is followed by annealing, in order to render the films dissolution-resistant and processable. Optical lithography and O-2 plasma etching are utilized to pattern the deposited films in the desired shapes and dimensions and a solid-state relative humidity sensor is fabricated on the SiO2 substrate. Spectroscopy and microscopy techniques are employed to characterize and monitor the whole process throughout the fabrication steps. The patterned films retain the functional groups introduced during their synthesis and continue to display hydrophilicity and PL properties. Successful patterning of these nanocomposites opens the way for the fabrication of solid-state, carbon dot-based optical and electrical devices that take advantage of the properties of carbon quantum dots.
Keywords:
GRAPHENE QUANTUM DOTS
FTIR SPECTROSCOPY
ONE-STEP
NANODOTS
SPECTRA
VAPOR
ACID
INK
Journal
IF:
5.1
Papers:
3.0W
Citations:
11.6W
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