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説明:

Extended two-dimensional (2D) crystals of dye molecules adsorbed on 2D material substrates such as boron nitride have recently become a subject of intense study, with potential applications ranging from quantum technology to optoelectronics. The most established technique for the production of these films is physical vapor transport in a vacuum. We demonstrate that few-layer crystalline films of the organic dye molecule perylenetetracarboxylic diimide (PTCDI) on boron nitride can be produced by microspacing in-air sublimation, a radically simplified technique that does not require complicated vacuum systems. The resulting layers display clearly resolved atomic step terraces in atomic force microscopy and a clear polarization anisotropy in their fluorescence, confirming molecular alignment and long-range order. Using density functional theory and classical molecular dynamics simulations, the canted motif is identified as the most likely building block for the morphology of a PTDCI monolayer on the hBN substrate.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: PTCDI, hBN, Physical vapor deposition

刊行年月日: 2025-02-28

出版者: American Chemical Society (ACS)

掲載誌:

• ACS Applied Optical Materials (ISSN: 27719855) vol. 3 issue. 2 p. 455-462

研究助成金:

• Ministry of Education, Culture, Sports, Science and Technology
• Deutsche Forschungsgemeinschaft EXC-2111-390814868
• Deutsche Forschungsgemeinschaft RE 3606/1-2
• Deutsche Forschungsgemeinschaft SFB 1477 - 441234705
• Core Research for Evolutional Science and Technology JPMJCR24A5
• Japan Society for the Promotion of Science 21H05233
• Japan Society for the Promotion of Science 23H02052
• Japan Science and Technology Corporation
• Agency for Cultural Affairs, Government of Japan

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI:

公開URL: https://doi.org/10.1021/acsaom.4c00522

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更新時刻: 2026-07-28 10:23:23 +0900

MDRでの公開時刻: 2026-07-28 12:27:23 +0900