Modulation Behaviors, Conductivities, and Carrier Dynamics of Single and Multilayer Graphenes
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Paris, France, 1 - 06 Eylül 2019, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/irmmw-thz.2019.8873797
- Basıldığı Şehir: Paris, France
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
Time domain and time resolved terahertz studies of single- and
multi-layer graphene (SLG and MLG) samples and modulator devices will be
presented. A high performance up to 100% of modulators were observed
with the devices even at very low voltages. High modulation depth over
such a broad spectrum and simple device structure brings significant
importance toward application of this type of device in THz and related
technologies. In addition, conductivities of SLG and MLG devices were
also investigated and a change in behavior was observed as the layer
thickness increased. The charge carriers dynamics of the samples with
pulp fluence and color was also highly interesting.