Graphene-based perfect absorption structures in the visible to terahertz band and their optoelectronics applications

C Guo, J Zhang, W Xu, K Liu, X Yuan, S Qin, Z Zhu - Nanomaterials, 2018 - mdpi.com
Graphene has unique properties which make it an ideal material for photonic and
optoelectronic devices. However, the low light absorption in monolayer graphene seriously …

Ultra-broadband and completely modulated absorption enhancement of monolayer graphene in a near-infrared region

Z Yan, L Kong, C Tang, J Deng, P Gu, J Chen… - Optics …, 2022 - opg.optica.org
Achieving ultra-broadband and completely modulated absorption enhancement of
monolayer graphene in near-infrared region is practically important to design graphene …

Semiconductor thin film based metasurfaces and metamaterials for photovoltaic and photoelectrochemical water splitting applications

A Ghobadi, TG Ulusoy Ghobadi… - Advanced Optical …, 2019 - Wiley Online Library
In both photovoltaic (PV) and photoelectrochemical water splitting (PEC‐WS) solar
conversion devices, the ultimate aim is to design highly efficient, low cost, and large‐scale …

[HTML][HTML] Broadband, wide-incident-angle, and polarization-insensitive high-efficiency absorption of monolayer graphene with nearly 100% modulation depth at …

J Chen, M Zhang, P Gu, Z Yan, C Tang, B Lv, X Wang… - Results in Physics, 2022 - Elsevier
We theoretically study how to greatly improve the near-infrared light absorption of monolayer
graphene through the excitation of magnetic resonance in metamaterials. The absorption …

Simultaneously achieving narrowband and broadband light absorption enhancement in monolayer graphene

Z Yan, L Gao, C Tang, B Lv, P Gu, J Chen… - Diamond and Related …, 2022 - Elsevier
We study theoretically how to simultaneously achieve narrowband and broadband light
absorption enhancement of monolayer graphene, which is placed on a metallic substrate …

Disordered and densely packed ITO nanorods as an excellent lithography-free optical solar reflector metasurface

DU Yildirim, A Ghobadi, MC Soydan, O Atesal… - Acs …, 2019 - ACS Publications
Precise control and stabilization of the operating temperature environment of spacecraft and
satellites during their life cycle is of paramount importance to increase device reliabilities …

Colorimetric and near-absolute polarization-insensitive refractive-index sensing in all-dielectric guided-mode resonance based metasurface

DU Yildirim, A Ghobadi, MC Soydan… - The Journal of …, 2019 - ACS Publications
Colorimetric detection of target molecules with insensitivity to incident-light polarization has
attracted considerable attention in recent years. This resulted from the ability to provide rapid …

Graphene/PbS quantum dot hybrid structure for application in near-infrared photodetectors

H Jeong, JH Song, S Jeong, WS Chang - Scientific reports, 2020 - nature.com
A graphene-PbS quantum dot (QD) composite for application in high-performance near-
infrared (NIR) photodetectors (PDs) is proposed in this study. A single-layer graphene flake …

Perfect absorption by an atomically thin crystal

J Horng, EW Martin, YH Chou, E Courtade, T Chang… - Physical Review …, 2020 - APS
Optical absorption is one of the most fundamental processes in light-matter interactions. The
ability to achieve and control high absorption is crucial for a broad range of modern photonic …

Lithography‐free random bismuth nanostructures for full solar spectrum harvesting and mid‐infrared sensing

MC Soydan, A Ghobadi, DU Yildirim… - Advanced Optical …, 2020 - Wiley Online Library
A lithography‐free, double‐functional single bismuth (Bi) metal nanostructure is designed,
fabricated, and characterized for ultrabroadband absorption in the visible (vis) and near …