- 期刊
- OpenAccess
Optical Phonon Modes in Rectangular Graphene Quantum Dots
並列摘要
Recently, graphene has been studied extensively as a promising material for future high-performance electronics. Dimensionally-confined graphene nanostructures are building blocks of devices and the carrier-phonon interactions in these device structures are frequently critical to their electronic properties. For a two-dimensional confined graphene nanosheet with orthogonal in-plane boundaries along armchair and zigzag edge, the confined carrier and optical phonon states are determined. The electron-longitudinal optical (LO)-phonon interactions in these graphene quantum dots are studied by the optical deformation potential theory. Phonon bottleneck effects are found for general graphene quantum dots. Carrier-LO-phonon scattering events are allowed only for graphene quantum dots with certain sizes; Fermi golden rule transition rates are evaluated approximately for cases where the dot dimensions are such that transitions are allowed.
並列關鍵字
無資料被引用紀錄
延伸閱讀
- Zhang, J., Ma, Y. Q., Li, N., Zhu, J. L., Zhang, T., Zhang, W., & Liu, B. (2016). Preparation of Graphene Quantum Dots and Their Application in Cell Imaging. Journal of Nanomaterials, 2016(), 162-170-316. https://doi.org/10.1155/2016/9245865
- Santiago, S. R. M. (2016). Tunable Photoluminescence of Graphene Quantum Dots via Pulsed Laser Ablation [master's thesis, Chung Yuan Christian University]. Airiti Library. https://doi.org/10.6840/cycu201600432
- 陳柏瑋（2020）。Optical and magnetic properties of quantum dot heterostructures〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu202000524
- 陳渝彥（2022）。Photophysical Properties of Graphene Quantum Dots in Liquid State and Polymer Matrix〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu202201309
- Biswas, S., Dutta, M., Snee, P., & Stroscio, M. (2011). Phonon Modes in Semiconductor Quantum Dots. Chinese Journal of Physics, 49(1), 92-99. https://www.airitilibrary.com/Article/Detail?DocID=05779073-201102-201104150033-201104150033-92-99