Excitons in narrow-gap carbon nanotubes

R. R. Hartmann; I. A. Shelykh; M. E. Portnoi

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Excitons in narrow-gap carbon nanotubes

机译：窄间隙碳纳米管中的激子

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We calculate the exciton binding energy in single-walled carbon nanotubes with narrow band gaps, accounting for the quasirelativistic dispersion of electrons and holes. Exact analytical solutions of the quantum relativistic two-body problem are obtained for several limiting cases. We show that the binding energy scales with the band gap, and conclude on the basis of the data available for semiconductor nanotubes that there is no transition to an excitonic insulator in quasimetallic nanotubes and that their THz applications are feasible.

机译：我们计算了带隙较窄的单壁碳纳米管中的激子结合能，这说明了电子和空穴的拟定论性色散。针对几种极限情况，获得了量子相对论两体问题的精确解析解。我们表明，结合能随带隙而变化，并基于可用于半导体纳米管的数据得出结论，准金属纳米管中没有向激子绝缘子的过渡，并且它们的THz应用是可行的。

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来源
《Physical review》 |2011年第3期|p.035437.1-035437.8|共8页
作者
R. R. Hartmann; I. A. Shelykh; M. E. Portnoi;
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作者单位

School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, United Kingdom;

Science Institute, University of Iceland, Dunhagi 3, IS-107, Reykjavik, Iceland and International Institute of Physics, Av. Odilon Gomes de Lima, 1722, Capim Macio, CEP: 59078-400, Natal - RN, Brazil;

School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, United Kingdom and International Institute of Physics, Av. Odilon Gomes de Lima, 1722, Capim Macio, CEP: 59078-400, Natal - RN, Brazil;

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原文格式 PDF
正文语种 eng
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关键词
nanotubes; excitons and related phenomena; nanotubes;

机译：纳米管激子和相关现象;纳米管;

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1. Crossovers from excitons to plasmons in narrow-gap carbon nanotubes [J] . Seiji Uryu Physical review. B, Condensed Matter And Materials Physics . 2018,第23期

机译：窄间隙碳纳米管中从激子到等离激元的交换
2. Crossovers from excitons to plasmons in narrow-gap carbon nanotubes [J] . Uryu Seiji Physical review, B . 2018,第23期

机译：从激子到窄间隙碳纳米管中的浆块的交叉
3. Exciton diffusion, end quenching, and exciton-exciton annihilation in individual air-suspended carbon nanotubes [J] . A. Ishii, M. Yoshida, Y. K. Kato Physical review . 2015,第12期

机译：单个空气悬浮碳纳米管中的激子扩散，末端猝灭和激子激子an灭
4. Exciton States in Narrow-Gap Carbon Nanotubes [C] . R. R. Hartmann, M. E. Portnoi Conference on Progress in Applied Mathematics in Science and Engineering Proceedings . 2016

机译：激子状态在窄间隙碳纳米管中
5. Inspection of Excited State Properties in Defected Carbon Nanotubes from Multiple Exciton Generation to Defect-defect Interactions [D] . Weight, Braden Michael. 2020

机译：从多个激子生成到缺陷缺陷相互作用的缺陷碳纳米管中激发状态特性的检查
6. Intrinsically ultrastrong plasmon–exciton interactions in crystallized films of carbon nanotubes [O] . Po-Hsun Ho, Damon B. Farmer, George S. Tulevski, 2018

机译：碳纳米管结晶膜中的本征超强等离子体激子相互作用
7. Excitons and interband terahertz transitions in narrow-gap carbon nanotubes [O] . Portnoi, M.E., Downing, C.A., Hartmann, Richard R., 2014

机译：窄间隙碳纳米管中的激子和带间太赫兹跃迁

Excitons in narrow-gap carbon nanotubes

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