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The ripple effect of graphite nanofilm on stretchable polydimethylsiloxane for optical sensing

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Abstract
Graphene-based optical sensing devices have been widely studied for their broad band absorption, high carrier mobility, and mechanical flexibility. Due to graphene's week light absorption, studies on graphene-based optical sensing thus far have focused on hybrid heterostructure devices to enhance photo-absorption. Such hybrid devices need a complicated integration process and leas to deteriorating carrier mobility as a result of heterogeneous interfaces. Rippled or wrinkled graphene has been studied in electronic and optoelectronic devices. However, concrete demonstrations of the impact of the morphology of nanofilms associated with the light absorption in optical sensing devices have not been fully examined. This study explored the optical sensing potential of a graphite nanofilm surface with ripples induced by a stretchable polydimethylsiloxane(PDMS) supporting layer under different stretch: release ratios and then transferred onto silicon, both under experimental conditions and via simulation. The optical sensing potential of the rippled graphite nanofilm was significantly enhanced (260 mA/W at the stretch-release state of 30%), as compared to the pristine praphite/PDMS(20 mA/W at the stretch-rease state of 0%) under laser illumination as a wavelength of 552 nm, In addition, the results of our simulated computation also confirmed the improved light absorption of rippled graphite nanofilm surface-based optical sensing devices, which was comparable with the results found in the experiment.
Author(s)
Kossi A. A. Min-Dianey레캭똡Akeel QadirNoe Landry Privace M BouanaMuhammad Malik김석원최정렬Phuong V. Pham
Issued Date
2021
Type
Article
Keyword
nanofilmoptical sensingP은photoresponsivityrippled graphitestretchable
DOI
10.3390/nano11112934
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9535
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_doaj_primary_oai_doaj_org_article_63e3b26bdd014ef5b1305fad2d8a8117&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,The%20ripple%20effect%20of%20graphite%20nanofilm%20on%20stretchable%20polydimethylsiloxane%20for%20optical%20sensing&offset=0&pcAvailability=true
Publisher
NANOMATERIALS
Location
스위스
Language
영어
ISSN
2079-4991
Citation Volume
11
Citation Number
11
Citation Start Page
2934
Citation End Page
2934
Appears in Collections:
Natural Science > Physics
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