基于C3N的异构体:一个潜在的平台来探索光电子和热电性质
Deep Mondal1, Supriya Ghosal2, Susmita Jana3
1University of Calcutta, 92 A P C Road, Kolkata, West Bengal, 700009, INDIA.
概括
我们探索了C3N/hBN和C3N/石墨烯范德瓦尔斯对热和光电子应用的异构结构. C3N/hBN显示出有前途的热电特性和光学吸收,使其适合新材料设计.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 计算化学计算化学
背景情况:
- 范德瓦尔斯 (vdW) 异构结构提供可调节的电子和热特性.
- C3N是最近合成的2D材料,有可能用于新的应用.
- 了解热传输和光电子行为对于材料设计至关重要.
研究的目的:
- 从理论上研究C3N/hBN和C3N/石墨烯vdW异构结构的热传输和光电子特性.
- 评估它们在热电和光电子设备应用中的潜力.
- 探索材料组成和结构对其性能的影响.
主要方法:
- 利用波兹曼传输计算用于热和电性质.
- 用GW+Bethe-Salpeter方程 (BSE) 来计算光电子属性.
- 分析了声子的行为,带结构和光学吸收光谱.
主要成果:
- C3N/hBN表现出具有良好的热电功率因子和中间格子导热性的半导体行为.
- C3N/石墨烯具有金属特性,具有低的Seebeck系数和高的电导率.
- C3N/hBN显示了显著的光学吸收峰值和高电子孔准粒子相互作用.
- 在n型兴奋剂下,C3N/hBN的功效数字达到0.13在300K和0.36在900K.
结论:
- 由于其有利的特性,C3N/hBN是热电和光电子应用的有希望的候选者.
- 该研究强调了基于C3N的异构结构在设计高效能源材料方面的潜力.
- 这些发现鼓励进一步研究轻质量,地球丰富和无毒材料设计.
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