The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures
We show that nanocrystals share a common and intrinsic skin electric-double-layer (EDL). The EDL is determined to be 2.14 regular-bond-length thick using differential phonon spectroscopy that distills phonon abundance transiting from the core region to the EDL of the sized crystals. Theoretical repr...
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sg-ntu-dr.10356-1612322022-08-22T02:44:14Z The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures Peng, Yuan Tong, Zhibo Yang, Yezi Sun, Changqing School of Electrical and Electronic Engineering Micro- and Nanoelectronic Research Center Engineering::Electrical and electronic engineering Nanostrcture Atomic Undercoordination We show that nanocrystals share a common and intrinsic skin electric-double-layer (EDL). The EDL is determined to be 2.14 regular-bond-length thick using differential phonon spectroscopy that distills phonon abundance transiting from the core region to the EDL of the sized crystals. Theoretical reproduction of the size-resolved Raman shift for Si, CeO₂, and SnO₂ nanocrystals, elasticity of ZnO, and the XPS 2p energy shift, band gap expansion and melting point shift of Si crystals confirmed the universality of the EDL of which bonds are shorter and stronger than those inside the bulk or the particle core interior. The EDL bond contraction and the associated electron entrapment and polarization originate, and the EDL volume quantifies the size dependency of nanostructures while the electron entrapment or polarization entitles the undercoordinated single or edge atoms with properties that a bulk does never show. Financial support received from the National Natural Science Foundation (No 21273191) of China, is gratefully acknowledged. 2022-08-22T02:44:14Z 2022-08-22T02:44:14Z 2021 Journal Article Peng, Y., Tong, Z., Yang, Y. & Sun, C. (2021). The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures. Applied Surface Science, 539, 148208-. https://dx.doi.org/10.1016/j.apsusc.2020.148208 0169-4332 https://hdl.handle.net/10356/161232 10.1016/j.apsusc.2020.148208 2-s2.0-85094192144 539 148208 en Applied Surface Science © 2020 Elsevier B.V. All rights reserved. |
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Engineering::Electrical and electronic engineering Nanostrcture Atomic Undercoordination Peng, Yuan Tong, Zhibo Yang, Yezi Sun, Changqing The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures |
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We show that nanocrystals share a common and intrinsic skin electric-double-layer (EDL). The EDL is determined to be 2.14 regular-bond-length thick using differential phonon spectroscopy that distills phonon abundance transiting from the core region to the EDL of the sized crystals. Theoretical reproduction of the size-resolved Raman shift for Si, CeO₂, and SnO₂ nanocrystals, elasticity of ZnO, and the XPS 2p energy shift, band gap expansion and melting point shift of Si crystals confirmed the universality of the EDL of which bonds are shorter and stronger than those inside the bulk or the particle core interior. The EDL bond contraction and the associated electron entrapment and polarization originate, and the EDL volume quantifies the size dependency of nanostructures while the electron entrapment or polarization entitles the undercoordinated single or edge atoms with properties that a bulk does never show. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Peng, Yuan Tong, Zhibo Yang, Yezi Sun, Changqing |
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Article |
author |
Peng, Yuan Tong, Zhibo Yang, Yezi Sun, Changqing |
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Peng, Yuan |
title |
The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures |
title_short |
The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures |
title_full |
The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures |
title_fullStr |
The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures |
title_full_unstemmed |
The common and intrinsic skin electric-double-layer (EDL) and its bonding characteristics of nanostructures |
title_sort |
common and intrinsic skin electric-double-layer (edl) and its bonding characteristics of nanostructures |
publishDate |
2022 |
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https://hdl.handle.net/10356/161232 |
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