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Size dependent 2p3/2 binding-energy shift of Ni nanoclusters on SiO2 support: Skin-depth local strain and quantum trapping by Yanguang Nie; Jisheng Pan; Zheng Zhang; Jianwei Chai; Shijie Wang; Chiam Sing Yang; Daniel Li; Chang Q. Sun is a Materials Science article available to read on EtoBox.

What is Size dependent 2p3/2 binding-energy shift of Ni nanoclusters on SiO2 support: Skin-depth local strain and quantum trapping about?

An in situ X-ray photoelectron emission investigation revealed that the size trend of the 2p 3/2 bindingenergy shift (BES) of Ni nanoclusters grown on SiO 2 substrate follows the prediction of the bond order-length-strength (BOLS) correlation theory . Theoretical reproduction of the measurements turns out that the 2p 3/2 binding energy of an isolated Ni atom is 850.51 eV and its intrinsic bulk shift is 2.70 eV. Findings confirmed that the skin-depth local strain and potential well quantum trapping induced by the shorter and stronger bonds between under-coordinated surface atoms provide perturbation to the Hamiltonian and hence dominate the size dependent BES.

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Author

Yanguang Nie; Jisheng Pan; Zheng Zhang; Jianwei Chai; Shijie Wang; Chiam Sing Yang; Daniel Li; Chang Q. Sun

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0169-4332)

Published

2010

Language

EN

Field

Materials Science (Physical Sciences)