Excitonic photoluminescence from nanodisc states in graphene oxides

• Main Authors: Kozawa, Daichi, Zhu, Xi, Miyauchi, Yuhei, Mouri, Shinichiro, Ichida, Masao, Su, Haibin, Matsuda, Kazunari
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Materials::Photonics and optoelectronics materials
• Online Access: https://hdl.handle.net/10356/101610; http://hdl.handle.net/10220/24180
• Institution: Nanyang Technological University

The origin of near-infrared (NIR) luminescence from graphene oxide (GO) is investigated by photoluminescence (PL) excitation spectroscopy, time-resolved PL spectroscopy, and density functional theory based many body perturbation theories. The energy of experimentally observed NIR PL peak depends on...