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Liu XQ, Ma A, Zhang YN, Yi ZJ, Eglitis RI, Tapsoba I, Jia R. Pan-C 2(n+1): A Theoretical Prediction for 2D Carbon Allotropes. Inorg Chem 2025; 64:7460-7469. [PMID: 40193277 DOI: 10.1021/acs.inorgchem.5c00178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2025]
Abstract
In this work, the two-dimensional (2D) periodic armchair nanoribbon (pan-C2(n+1)) systems have been proposed and investigated by using the density functional theory (DFT). The pan-C2(n+1) systems can be easily obtained by in-plane rotating the carbon pairs C2 at certain positions in the monolayer graphene (G). The graphene nanoribbon patterns are connected by the resulting line defects composed of the 5- and 8-membered rings without edge and dangling bond. Their structural stabilities, mechanical strengths, and electronic features have been systematically discussed. A 3n rule has been revealed from their mechanical and electronic natures, which is however not entirely similar to the common 3n rule in the one-dimensional (1D) graphene nanoribbons. The band gaps of pan-C2(n+1) vary in the range of 0 to 1.06 eV at the PBE0 level following the 3n rule. This tunable semiconducting property offers the probabilities of designing 2D logic circuits on the scale of single atomic thickness, gas sensors, and so on. Moreover, these pan-C2(n+1) systems not only expand the carbon material family, but also provide more templates for designing functional materials through defect engineering.
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Affiliation(s)
- Xin-Qi Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012 Changchun, P. R. China
| | - Ang Ma
- College of Chemistry and Chemical Engineering, Inner Mongolia University, 010021 Hohhot, P. R. China
| | - Ya-Nan Zhang
- College of Chemistry, Jilin University, 130012 Changchun, P. R. China
| | - Zhi-Jun Yi
- School of Materials Science and Physics, China University of Mining and Technology, 221116 Xuzhou, P. R. China
| | - Roberts I Eglitis
- Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga LV1067, Latvia
| | - Issa Tapsoba
- Département de Chimie, UFR Sciences Exactes et Appliquées, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou, Burkina Faso, West Africa
- International Joint Laboratory for Development of Animal and Plant Resources for Food and Medicine, Jilin Agricultural University, 130000 Changchun, P. R. China
| | - Ran Jia
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012 Changchun, P. R. China
- Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga LV1067, Latvia
- International Joint Laboratory for Development of Animal and Plant Resources for Food and Medicine, Jilin Agricultural University, 130000 Changchun, P. R. China
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