Scaling of excitons in graphene nanodots

Literature Information

Publication Date 2016-09-19
DOI 10.1039/C6CP05825F
Impact Factor 3.676
Authors

Hao Wang


View Original

Abstract

The binding energy of an exciton in a semiconductor or an insulator is known to scale linearly with εr−2, where εr is its dielectric constant. In graphene however, since the kinetic energy scales linearly with the wave number instead of its square, the exciton binding energy is thus expected to scale with εr−1. In this work we make use of the configuration interaction approach to study the properties of excitons in graphene nanodots embedded in various dielectric environments. With tens of million configurations taken into account in the calculation, we find that the exciton binding energy can be well described by a single scaling rule in which the scaling factor is found to vary with the dimension of the nanodots as well as with the on-site interaction parameter, which agrees well with a recent experiment. The linear relation of the exciton binding energy found with the quasi-particle gap also agrees with the previous work on bulk graphene and other two-dimensional materials.

Related Literature

Acetone and the precursor ligand acetylacetone: distinctly different electron beam induced decomposition?

Jonas Warneke, Willem F. Van Dorp, Petra Rudolf, Michal Stano, Peter Papp, Štefan Matejčík, Tobias Borrmann, Petra Swiderek

2014-11-14 Paper

DOI: 10.1039/C4CP04239E

Unequal effect of ethanol–water on the stability of ct-DNA, poly[(dA–dT)]2 and poly(rA)·poly(rU). Thermophysical properties

Rebeca Ruiz, Francisco J. Hoyuelos, Ana M. Navarro, José M. Leal, Begoña García

2014-11-21 Paper

DOI: 10.1039/C4CP03459G

Towards bulk thermodynamics via non-equilibrium methods: gaseous methane as a case study

Mirco Zerbetto, Diego Frezzato

2014-12-05 Paper

DOI: 10.1039/C4CP03815K

Tunability of hybridized plasmonic waveguide mediated by surface plasmon polaritons

Ming-Ming Jiang, Chong-Xin Shan, De-Zhen Shen

2014-05-20 Paper

DOI: 10.1039/C4CP01437E

Confined platinum nanoparticle in carbon nanotube: structure and oxidation

Guang-Feng Wei, Cheng Shang, Zhi-Pan Liu

2014-11-19 Paper

DOI: 10.1039/C4CP04145C

Michaelis–Menten kinetics under non-isothermal conditions

Anders Lervik, Hong Qian

2014-11-18 Paper

DOI: 10.1039/C4CP04334K

Photoelectrocatalytic degradation of rhodamine B on TiO2 photonic crystals

Xiuzhen Zheng, Danzhen Li, Xiaofang Li, Linhui Yu, Peng Wang, Xiaoyun Zhang, Jialin Fang, Yu Shao, Yi Zheng

2014-06-09 Paper

DOI: 10.1039/C4CP01888E

An efficient method to enhance the stability of sulphide semiconductor photocatalysts: a case study of N-doped ZnS

Yansong Zhou, Gang Chen, Yaoguang Yu, Yujie Feng, Yi Zheng, Fang He, Zhonghui Han

2014-11-27 Paper

DOI: 10.1039/C4CP03736G

You might also like

Compound Q&A

Is 2-(2-chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) safe?

2-(2-Chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) is generally consi...

7765-11-92-(2-chloroacetamido...
Compound Q&A

Is 2-(Benzyloxy)-5-bromobenzoic acid (CAS: 62176-31-2) safe?

2-(Benzyloxy)-5-bromobenzoic acid can be handled safely if appropriate precautio...

62176-31-22-(Benzyloxy)-5-brom...
Compound Q&A

What is (4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride (CAS: 1159825-48-5)?

(4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride is a chemical compound ...

1159825-48-5(4-Methyl-1,2,5-oxad...
Compound Q&A

What is 2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54-7)?

2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54...

917985-54-72-(5-Hexylthiophen-2...
Compound Q&A

Are there alternatives to 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS: 102771-26-6) in synthesis?

While 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS:...

102771-26-64-(8-Methyl-9H-1,3-d...
Compound Q&A

What is the market or research trend for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine-6-carboxylate (CAS: 851376-80-2)?

The market for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine...

851376-80-2tert-butyl 3-hydroxy...
Compound Q&A

How should waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) be handled?

Waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) should ...

6844-58-23,5-Diamino-1H-pyraz...
Compound Q&A

How is (6-Fluoro-3-pyridinyl)boronic acid (CAS: 351019-18-6) typically synthesized?

(6-Fluoro-3-pyridinyl)boronic acid can be synthesized through the reaction of 6-...

351019-18-6(6-Fluoro-3-pyridiny...
Compound Q&A

What industries use Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9)?

Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9) finds applications in vario...

10065-79-9Dibenzyl carbonimido...
Compound Q&A

What is the market or research trend for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4)?

The market for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4) is g...

74228-83-4(beta,beta,2,3,4,5,6...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.