当前位置: X-MOL 学术Carbon Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Coulomb mechanism of Raman radiation in graphene
Carbon Letters ( IF 5.5 ) Pub Date : 2021-01-19 , DOI: 10.1007/s42823-020-00220-3
S. V. Melkonyan

The phenomena of single-layer graphene resonant photoluminescence and Raman radiation are discussed taking into account the photo-generated electron–hole Coulomb interaction. On the base of general principles of a many-particle interactions and the interband resonance optical transitions a photon radiation new mechanism (Coulomb mechanism) is proposed. Through Stokes 2D'-mode particular case analysis has shown that the graphene photoluminescence and the resonant Raman radiation are characterized by the same frequency shifts. Probabilities of resonance photo-radiation processes have been presented where the electron–hole Coulomb attraction has been taken into account. The probabilities are the same fourth-order small values. The weak photo-radiation Coulomb mechanism has a common character. It is applicable to both zero and nonzero band gap crystals.



中文翻译:

石墨烯中拉曼辐射的库仑机理

考虑到光生电子-空穴库仑相互作用,讨论了单层石墨烯共振光致发光和拉曼辐射的现象。基于多粒子相互作用和带间共振光学跃迁的一般原理,提出了一种新的光子辐射机理(库仑机理)。通过Stokes 2D'模式的特殊情况分析表明,石墨烯的光致发光和共振拉曼辐射具有相同的频移特征。已经提出了考虑到电子-空穴库仑引力的共振光辐射过程的可能性。概率是相同的四阶小值。弱的光辐射库仑机制具有共同的特征。

更新日期:2021-01-19
down
wechat
bug