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Article

Advanced Optical Detection through the Use of a Deformably Transferred Nanofilm

1
Département de Physique, Faculté Des Sciences (FDS), Université de Lomé, Lomé 01BP1515, Togo
2
Department of Physics, Energy Harvest Storage Research Center, University of Ulsan, Ulsan 44610, Korea
3
Department of Nanoengineering, Kyonggi University, Suwon 16227, Korea
4
SKKU Advanced Institute of Nano Technology, Sungkyunkwan University, Suwon 440746, Korea
*
Authors to whom correspondence should be addressed.
Academic Editors: C. Bor Fuh and Antonio Di Bartolomeo
Nanomaterials 2021, 11(3), 816; https://doi.org/10.3390/nano11030816
Received: 16 February 2021 / Revised: 17 March 2021 / Accepted: 22 March 2021 / Published: 23 March 2021
Graphene has been extensively investigated in advanced photodetection devices for its broadband absorption, high carrier mobility, and mechanical flexibility. Due to graphene’s low optical absorptivity (2.3%), graphene-based photodetection research so far has focused on hybrid systems to increase photoabsorption. However, such hybrid systems require a complicated integration process and lead to reduced carrier mobility due to heterogeneous interfaces. Crumpled or deformed graphene has previously been reported in electronics and optoelectronics. However, a depth study on the influence of the morphology of nanofilms (e.g., graphite or graphene) related to light absorption in photodetection devices has not been demonstrated yet. Here, we present an interesting study in terms of the effect of the deformable surface and the smooth surface of a nanofilm transferred onto Si through two transfer strategies using isopropanol injection and nitrogen blowing (to form a deformable nanofilm surface) and deionized water injection and van der Waals interaction (to form a smooth nanofilm surface). As a result, optical detection in the case of the deformable nanofilm surface was enhanced significantly (~100%) compared with that of the smooth nanofilm surface in the visible laser wavelength (532 nm). In addition, evidence from the computational simulation also firmly affirms an advancement in the optical detection of deformed nanofilm-surface-based photodetection devices compatible with the experimental results. View Full-Text
Keywords: nanofilm; deformable surface; smooth surface; IPA injection and N2 blowing; DI water injection and vdW interaction nanofilm; deformable surface; smooth surface; IPA injection and N2 blowing; DI water injection and vdW interaction
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MDPI and ACS Style

Min-Dianey, K.A.A.; Le, T.K.; Choi, J.R.; Pham, P.V. Advanced Optical Detection through the Use of a Deformably Transferred Nanofilm. Nanomaterials 2021, 11, 816. https://doi.org/10.3390/nano11030816

AMA Style

Min-Dianey KAA, Le TK, Choi JR, Pham PV. Advanced Optical Detection through the Use of a Deformably Transferred Nanofilm. Nanomaterials. 2021; 11(3):816. https://doi.org/10.3390/nano11030816

Chicago/Turabian Style

Min-Dianey, Kossi A.A., Top K. Le, Jeong R. Choi, and Phuong V. Pham. 2021. "Advanced Optical Detection through the Use of a Deformably Transferred Nanofilm" Nanomaterials 11, no. 3: 816. https://doi.org/10.3390/nano11030816

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