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This study examines the optical and electronic properties of eight 2D transition metal chalcogenides (TMDs) covalently functionalized with perylene, forming hybrid materials. Characterization was performed using XPS, Raman, EDX, TEM, and AFM, while UV-Vis-NIR absorption and photoluminescence spectroscopy assessed optical properties. Electronic properties were analyzed via cyclic voltammetry and FET devices. The results showed that perylene’s spectroscopic features dominate, with WSe₂ and MoSe₂ exhibiting a new near-IR band and MoTe₂ showing enhanced conductivity. Perylene also boosted absorption (400–600 nm), improving photoresponse, with responsivities over 2 × 10⁵ % and 2 × 10⁴ mA W⁻¹. These hybrids rival top non-covalent functionalization methods, emphasizing covalent functionalization’s potential for tuning 2D materials.

権利情報:

• cc-by-3.0
  

キーワード: 2D materials

刊行年月日: 2025-02-27

出版者: Royal Society of Chemistry (RSC)

掲載誌:

• Nanoscale (ISSN: 20403372) vol. 17 issue. 13 p. 8084-8100

研究助成金:

• Japan Society for the Promotion of Science P19368
• Ministry of Education, Culture, Sports, Science and Technology

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5436

公開URL: https://doi.org/10.1039/d4nr05364h

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更新時刻: 2025-04-20 17:34:24 +0900

MDRでの公開時刻: 2025-04-20 17:17:36 +0900