DataVXACS Applied Materials & InterfacesPaper
journal article·2023-01-18

Facile Fabrication of Titanium Nitride Nanoring Broad-Band Absorbers in the Visible to Near-Infrared by Shadow Sphere Lithography

Myeongcheol Go, Dasol Lee, Sanghoon Kim, Junho Jang, Keon-Woo Kim, Jaeyong Lee, Sangmin Shim, Jin Kon Kim, Junsuk Rho

ACS Applied Materials & Interfaces· Volume 15· Issue 2
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Source abstract

Abstract

Plasmonic broad-band absorbers have received much attention because of their high absorption and potential applications for light-absorbing devices such as thermophotovoltaics, solar energy harvesting, and thermal emitters. However, the fabrication of complex structures in a large area and thermostability remains a great challenge. Here, we report a titanium nitride nanoring broad-band absorber that has over 95% average absorption in the visible and near-infrared regions (400–900 nm). Nanoring structures in a large area (inch 2 ) are fabricated by shadow sphere lithography, which can innovatively increase fabrication efficiency. The nanoring absorber showed over 2.3 times higher-temperature increases than flat film under the irradiation of light. These large-scale and broad-band absorbers have potential applications for solar energy conversion devices such as thermophotovoltaics and photothermal devices.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Metamaterials and Metasurfaces Applications · Thermal Radiation and Cooling Technologies · Plasmonic and Surface Plasmon Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Creative Research Initiative Center for Hybrid Nano Materials by High-Level Architectural Design of Block Copolymer, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang37673, Republic of Korea

Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang37673, Republic of Korea

Department of Biomedical Engineering, Yonsei University, Wonju26493, Republic of Korea

National Institute of Nanomaterials Technology (NINT), Pohang37673, Republic of Korea

Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang37673, Republic of Korea

POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics, Pohang37673, Republic of Korea

Funding

National Research Foundation of Korea

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