C
Conor Ryan
Researcher at Texas Christian University
Publications - 11
Citations - 298
Conor Ryan is an academic researcher from Texas Christian University. The author has contributed to research in topics: Graphene & Band gap. The author has an hindex of 5, co-authored 8 publications receiving 169 citations.
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Journal ArticleDOI
Photo-and Electroluminescence from Nitrogen-Doped and Nitrogen–Sulfur Codoped Graphene Quantum Dots
Tanvir Hasan,Roberto Gonzalez-Rodriguez,Conor Ryan,Nicolas Faerber,Jeffery L. Coffer,Anton V. Naumov +5 more
Journal ArticleDOI
Nitrogen-doped graphene quantum dots: Optical properties modification and photovoltaic applications
Tanvir Hasan,Roberto Gonzalez-Rodriguez,Conor Ryan,Kristof Pota,Kayla N. Green,Jeffery L. Coffer,Anton V. Naumov +6 more
TL;DR: In this article, a bottom-up approach to synthesize nitrogen self-doped graphene quantum dots (NGQDs) from a single glucosamine precursor via an eco-friendly microwave-assisted hydrothermal method was used.
Journal ArticleDOI
Optical Band Gap Alteration of Graphene Oxide via Ozone Treatment
Tanvir Hasan,Brian J Senger,Conor Ryan,Marais Culp,Roberto Gonzalez-Rodriguez,Jeffery L. Coffer,Anton V. Naumov +6 more
TL;DR: This work utilizes ozone treatment to controllably tune the band gap of GO, which can significantly enhance its applications, and proposes that ozone-induced functionalization decreases the size of graphitic islands affecting the GO band gap and emission energies.
Journal ArticleDOI
Modifying optical properties of reduced/graphene oxide with controlled ozone and thermal treatment in aqueous suspensions.
Tanvir Hasan,Brian J Senger,Price Mulford,Conor Ryan,Hung Doan,Zygmunt Gryczynski,Anton V. Naumov +6 more
TL;DR: The controllable variation of GO optical properties in aqueous suspension by ozone and thermal treatments shown in this work provides a route to tune its optical response for particular optoelectronics or biomedical applications.
Journal ArticleDOI
Variation of Optical Properties of Nitrogen-doped Graphene Quantum Dots with Short/Mid/Long-wave Ultraviolet for the Development of the UV Photodetector.
TL;DR: It is suggested that the optical/structural properties of NGQDs can be controllably altered via different wavelength UV-treatment leading us to fabricate NGQD-based novel UV photodetectors providing high responsivity and detectivity.