Preparation and characterization of freely-suspended graphene nanomechanical membrane devices with quantum dots for point-of-care applications

Name: Preparation and characterization of freely-suspended graphene nanomechanical membrane devices with quantum dots for point-of-care applications
Author: Memisoglu, G., Gülbahar, Burhan, Fernandez Bello, R.

İsim	Preparation and characterization of freely-suspended graphene nanomechanical membrane devices with quantum dots for point-of-care applications
Yazar	Memisoglu, G., Gülbahar, Burhan, Fernandez Bello, R.
Basım Tarihi:	2020-01-01
Basım Yeri	- MDPI
Konu	Graphene oxide, Graphene, Quantum dot, Nanomechanical membrane, Acoustic sensing, VFRET, Point-of-care
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2072-666X
Kayıt Numarası	64eefb20-e0b1-43cb-b606-6c21edab7aa1
Lokasyon	Electrical & Electronics Engineering
Tarih	2020-01-01
Notlar	European Union (EU)
Örnek Metin	We demonstrate freely suspended graphene-based nanomechanical membranes (NMMs) as acoustic sensors in the audible frequency range. Simple and low-cost procedures are used to fabricate NMMs with various thicknesses based on graphene layers grown by graphite exfoliation and solution processed graphene oxide. In addition, NMMs are grafted with quantum dots (QDs) for characterizing mass sensitive vibrational properties. Thickness, roughness, deformation, deflection and emissions of NMMs with attached QDs are experimented and analyzed by utilizing atomic force microscopy, Raman spectroscopy, laser induced deflection analyzer and spectrophotometers. Forster resonance energy transfer (FRET) is experimentally achieved between the QDs attached on NMMs and nearby glass surfaces for illustrating acousto-optic utilization in future experimental implementations combining vibrational properties of NMMs with optical emission properties of QDs. This property denoted as vibrating FRET (VFRET) is previously introduced in theoretical studies while important experimental steps are for the first time achieved in this study for future VFRET implementations. The proposed modeling and experimental methodology are promising for future novel applications such as NMM based biosensing, photonics and VFRET based point-of-care (PoC) devices.
DOI	10.3390/mi11010104
Cilt	11

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Preparation and characterization of freely-suspended graphene nanomechanical membrane devices with quantum dots for point-of-care applications

Yazar Memisoglu, G., Gülbahar, Burhan, Fernandez Bello, R.

Basım Tarihi 2020-01-01

Basım Yeri - MDPI

Konu Graphene oxide, Graphene, Quantum dot, Nanomechanical membrane, Acoustic sensing, VFRET, Point-of-care

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2072-666X

Kayıt Numarası 64eefb20-e0b1-43cb-b606-6c21edab7aa1

Lokasyon Electrical & Electronics Engineering

Tarih 2020-01-01

Notlar European Union (EU)

Örnek Metin We demonstrate freely suspended graphene-based nanomechanical membranes (NMMs) as acoustic sensors in the audible frequency range. Simple and low-cost procedures are used to fabricate NMMs with various thicknesses based on graphene layers grown by graphite exfoliation and solution processed graphene oxide. In addition, NMMs are grafted with quantum dots (QDs) for characterizing mass sensitive vibrational properties. Thickness, roughness, deformation, deflection and emissions of NMMs with attached QDs are experimented and analyzed by utilizing atomic force microscopy, Raman spectroscopy, laser induced deflection analyzer and spectrophotometers. Forster resonance energy transfer (FRET) is experimentally achieved between the QDs attached on NMMs and nearby glass surfaces for illustrating acousto-optic utilization in future experimental implementations combining vibrational properties of NMMs with optical emission properties of QDs. This property denoted as vibrating FRET (VFRET) is previously introduced in theoretical studies while important experimental steps are for the first time achieved in this study for future VFRET implementations. The proposed modeling and experimental methodology are promising for future novel applications such as NMM based biosensing, photonics and VFRET based point-of-care (PoC) devices.

DOI 10.3390/mi11010104

Cilt 11