Zakład Fizyki Makromolekularnej
Strona główna
Zespół
Badania
Aparatura
Seminaria
Publikacje
Nasze
konferencje
Aktywność
konferencyjna
Projekty
Programy
Najbliższe
wydarzenia
Linki
Kontakt

wizyta

od 2020-09-20


Authors: Baitimirova M., Viter R., Andzane J., van der Lee A., Voiry D., Iatsunskyi I., Coy E., Mikoliunaite L., Tumenas S., Zaleski K., Balevicius Z., Baleviciute I., Ramanaviciene A., Ramanavicius A., Jurga S., Erts D., Bechelany M.

Title: Tuning of structural and optical properties of graphene/ZnO nanolaminates

Source: Journal of Physical Chemistry C

Year : 2016


Abstract:

Zinc oxide (ZnO) and graphene (G) have been extensively studied because of their unique physical properties. Here, graphene zinc oxide (G/ZnO) nanolaminates were fabricated, respectively, by chemical vapor deposition and low temperature atomic layer deposition technique. The number of obtained G/ZnO layers was tuned from 1 to 11 with a total thickness of 100 nm for all prepared nanolaminates. The structure, optical properties, and interaction between G and ZnO were studied by X-ray methods, TEM, AFM, Raman, and optical spectroscopy. The obtained results were interpreted and analyzed taking into account strain and charge effects of graphene in G/ZnO nanostructures. We demonstrate that the bottom graphene used as a substrate stimulated the formation of ZnO crystalline structure. n-Doping of graphene caused by charge transfer from ZnO to graphene has been detected by blue-shift of G-band of Raman spectra of the nanolaminates. ZnO photoluminescence intensity was found to be dependent on the number of graphene layers in G/ZnO nanolaminate. n-Doping of graphene could be tailored by controlling the construction of the G/ZnO nanolaminates for a variety of applications such as selective adsorption of the target molecules on graphene surface. Thus, G/ZnO nanolaminates may find applications in optical, bio-, and chemical sensors.

DOI: 10.1021/acs.jpcc.6b07221   (Pobrane:  2021-01-27)

 © Opisy i zdjęcia: Zakład Fizyki Makromolekularnej  | Ta stona używa ciasteczek
     Zaktualizowano: podstrony  2021-06-21  / bazę danych:   2021-08-30  by Webmaster: Zbigniew Fojud