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Light emission, light detection and strain sensing with nanocrystalline graphene

Riaz, Adnan ; Pyatkov, Feliks ; Alam, Asiful ; Dehm, Simone ; Felten, Alexandre ; Chakravadhanula, Venkata S. K. ; Flavel, Benjamin S. ; Kübel, Christian ; Lemmer, Uli ; Krupke, Ralph (2015)
Light emission, light detection and strain sensing with nanocrystalline graphene.
In: Nanotechnology, 26 (32)
doi: 10.1088/0957-4484/26/32/325202
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Graphene is of increasing interest for optoelectronic applications exploiting light detection, light emission and light modulation. Intrinsically, the light–matter interaction in graphene is of a broadband type. However, by integrating graphene into optical micro-cavities narrow-band light emitters and detectors have also been demonstrated. These devices benefit from the transparency, conductivity and processability of the atomically thin material. To this end, we explore in this work the feasibility of replacing graphene with nanocrystalline graphene, a material which can be grown on dielectric surfaces without catalyst by graphitization of polymeric films. We have studied the formation of nanocrystalline graphene on various substrates and under different graphitization conditions. The samples were characterized by resistance, optical transmission, Raman and x-ray photoelectron spectroscopy, atomic force microscopy and electron microscopy measurements. The conducting and transparent wafer-scale material with nanometer grain size was also patterned and integrated into devices for studying light–matter interaction. The measurements show that nanocrystalline graphene can be exploited as an incandescent emitter and bolometric detector similar to crystalline graphene. Moreover the material exhibits piezoresistive behavior which makes nanocrystalline graphene interesting for transparent strain sensors.

Typ des Eintrags: Artikel
Erschienen: 2015
Autor(en): Riaz, Adnan ; Pyatkov, Feliks ; Alam, Asiful ; Dehm, Simone ; Felten, Alexandre ; Chakravadhanula, Venkata S. K. ; Flavel, Benjamin S. ; Kübel, Christian ; Lemmer, Uli ; Krupke, Ralph
Art des Eintrags: Bibliographie
Titel: Light emission, light detection and strain sensing with nanocrystalline graphene
Sprache: Englisch
Publikationsjahr: 24 Juli 2015
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Nanotechnology
Jahrgang/Volume einer Zeitschrift: 26
(Heft-)Nummer: 32
DOI: 10.1088/0957-4484/26/32/325202
Kurzbeschreibung (Abstract):

Graphene is of increasing interest for optoelectronic applications exploiting light detection, light emission and light modulation. Intrinsically, the light–matter interaction in graphene is of a broadband type. However, by integrating graphene into optical micro-cavities narrow-band light emitters and detectors have also been demonstrated. These devices benefit from the transparency, conductivity and processability of the atomically thin material. To this end, we explore in this work the feasibility of replacing graphene with nanocrystalline graphene, a material which can be grown on dielectric surfaces without catalyst by graphitization of polymeric films. We have studied the formation of nanocrystalline graphene on various substrates and under different graphitization conditions. The samples were characterized by resistance, optical transmission, Raman and x-ray photoelectron spectroscopy, atomic force microscopy and electron microscopy measurements. The conducting and transparent wafer-scale material with nanometer grain size was also patterned and integrated into devices for studying light–matter interaction. The measurements show that nanocrystalline graphene can be exploited as an incandescent emitter and bolometric detector similar to crystalline graphene. Moreover the material exhibits piezoresistive behavior which makes nanocrystalline graphene interesting for transparent strain sensors.

Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Molekulare Nanostrukturen
Hinterlegungsdatum: 20 Okt 2015 12:04
Letzte Änderung: 19 Nov 2021 11:18
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