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Akademický článek

AgNi15 composite particles prepared by ultrasonic arc spray atomization method

Autor: XIE, Jian-bin, WEN, Chun-ming, QIN, Guo-yi, XU, Si-yong, GUO, Jin-xin

Publikováno v: In Transactions of Nonferrous Metals Society of China November 2014 24(11):3556-3561

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Phonons in Quantum-Dot Quantum Well

Autor: Qin Guo-Yi

Publikováno v: Communications in Theoretical Physics. 42:609-618

Phonon modes of AlAs/GaAs/AlAs and GaAs/AlAs/metal Pb quantum-dot quantum wells (QDQW's) with the whole scale up to 90 A are calculated by using valence force field model (VFFM) based on group theory. Their optical frequency spectra are divided into

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b450f58ad5ed218945b84296724a773c
https://doi.org/10.1088/0253-6102/42/4/609

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Correct Evaluation of the Effect of Transverse Effective Charges on Phonons in AlAs Quantum Dots

Autor: Qin Guo-Yi

Publikováno v: Communications in Theoretical Physics. 40:727-734

An improved valence force field model (VFFM) is suggested to calculate the phonon modes in both bulk specimens and quantum dots (QDs) of AlAs taking account of the effect of transverse effective charges (TCs) correctly. The resultant dispersions of A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b7b021d1af1109699755085b037d85f
https://doi.org/10.1088/0253-6102/40/6/727

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Dual Space Analyzing Based on Symmetry Properties for Phonons fo Si Quantum Dot

Autor: Ren Shang-Fen, Zhang Zhi-Yong, Qin Guo-Yi

Publikováno v: Communications in Theoretical Physics. 38:91-98

Phonon modes in spherical Si quantum dots (QDs) with up to 7.9 nm in diameter are calculated by using the projection operators of the group theory into valence force field model. The phonons of dot modes in each of five irreducible representations (s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a43ce65c6f7de5a149d60dc23a68a787
https://doi.org/10.1088/0253-6102/38/1/91

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Mechanism for the Correlated Swinging of Photoluminescence Intensity and Peak Energy Shift with Sizes of Nanoscale Si Particles

Autor: Qin Guo-Yi, Wang Si-hui, Qin Guo-Gang, Liao LiKai

Publikováno v: Communications in Theoretical Physics. 34:593-604

Based on the quantum confinement-luminescence center model, we focus on the relationship between the photoluminescence (PL) spectra and sizes of nanoscale silicon particles.We find that when there are two kinds of luminescence centers (LC) in the oxi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b1f5ed16d698bdc0e4f184e9cf4de37
https://doi.org/10.1088/0253-6102/34/4/593

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Akademický článek

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Akademický článek

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Effect of inner electric field on the photoluminescence spectrum of nanosilicon

Autor: Zheng Youdou, Qin Guo-Yi, Shi Yi, Huang Kai, Wang Si-hui, Zhang Rong

Publikováno v: Acta Physica Sinica. 53:1236

Based on the quantum confinement-luminescence center model, the relation between the inner electric field (IEF) and the photoluminescence(PL) character is calculated. Results show that the IEF between nanosilicon and luminescence centers (LCs) can ha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::511b186daa35223dac33fbec64a5a62f
https://doi.org/10.7498/aps.53.1236

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