Výsledky vyhledávání - "Howard W. H. Lee"

Exciton dispersion in silicon nanostructures formed by intense, ultra-fast electronic excitation

Autor: A. V. Hamza, Thomas Schenkel, P.A. Thielen, Howard W. H. Lee, M. W. Newman, D. H. Schneider, J. W. McDonald

Publikováno v: Hamza, A.V.; Newman, M.W.; Thielen, P.A.; Lee, H.W.H.; Schenkel, T.; McDonald, J.W.; et al.(2001). Exciton dispersion in silicon nanostructures formed by intense, ultra-fast electronic excitation. Applied Physics A, 76(3). Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/0tg5d5zv

The intense, ultra-fast electronic excitation of clean silicon (100)–(2×1) surfaces leads to the formation of silicon nanostructures embedded in silicon, which photoluminesce in the yellow-green (∼2-eV band gap). The silicon surfaces were irradi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::643de35a00fc1462053f9b18b6af8ca4
https://doi.org/10.1007/s00339-002-1814-9

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Solution preparation of Ge nanoparticles with chemically tailored surfaces

Autor: Lousia J Hope-Weeks, Susan M. Kauzlarich, Boyd R. Taylor, Robert S. Maxwell, Glenn A. Fox, Howard W. H. Lee

Publikováno v: Materials Science and Engineering: B. 96:90-93

Boyd R. Taylor *, Glenn A. Fox , Lousia J. Hope-Weeks , Robert S. Maxwell , Susan M. Kauzlarich , Howard W.H. Lee d a Chemistry and Chemical Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA b Analytical and Nucle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b30f2e9c9bab8ab4159674fc24f88932
https://doi.org/10.1016/s0921-5107(02)00297-0

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[Untitled]

Autor: Y. C. Wang, Howard W. H. Lee, Chung-Sung Yang, Susan M. Kauzlarich

Publikováno v: Journal of Cluster Science. 11:423-431

Photoluminescence (PL) from alkyl-terminated silicon nanocrystallites as a function of size has been studied. Ultraviolet–blue luminescence (390–410 nm) is observed from as-prepared silicon nanoclusters with diameters from 3 to 8 nm. After 1 h of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a232ce22e2c1528d928c0df78d5cbb3
https://doi.org/10.1023/a:1009099416195

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X-ray photoemission and photoabsorption of organic electroluminescent materials

Autor: R. Treusch, Louis J. Terminello, V. V. Dinh, Glenn A. Fox, T. van Buuren, Clemens Heske, Ignacio A. Jiménez, Howard W. H. Lee, F. J. Himpsel, K. Pakbaz, S. Kakar

Publikováno v: Journal of Applied Physics. 86:88-93

Thin films of tris-(8, hydroxyquinoline) aluminum (Alq3) and N,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD) were measured using synchrotron radiation-based core and valence level photoemission and core level photoabso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34c10177a1c3aab2d931aac4f6efaa7b
https://doi.org/10.1063/1.370703

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Synthesis of Alkyl-Terminated Silicon Nanoclusters by a Solution Route

Autor: Chung-Sung Yang, Howard W. H. Lee, Richard A. Bley, Susan M. Kauzlarich, Gildardo R. Delgado

Publikováno v: Journal of the American Chemical Society. 121:5191-5195

We describe the synthesis and characterization of alkyl-capped nanocrystalline Si (R-n−Si) prepared by the reaction of SiCl4 with Mg2Si in ethylene glycol dimethyl ether (glyme) and surface-terminated with various alkyl groups, R-n−Si (R = methyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77418d2de9b812f17f12abf526598b1f
https://doi.org/10.1021/ja9828509

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ZnO nanoparticles embedded in polymeric matrices

Autor: C. A. Smith, D. Cooke, Shailaja Mahamuni, B. S. Bendre, Valerie J. Leppert, Howard W. H. Lee, Subhash H. Risbud

Publikováno v: Nanostructured Materials. 7:659-666

Highly stable, wurtzite quantum sized ZnO colloids encapsulated in polymers have been synthesized. The particles can be obtained in a powder form and are partially redissolvable in organic media. A shift in the optical absorption spectrum confirms qu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c89480842940f1029c42125a675b03b
https://doi.org/10.1016/0965-9773(96)00043-8

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Investigation of optically generated transient electronic defects and protonic transport in hydrogen-bonded molecular solids. Isomorphs of potassium dihydrogen phosphate

Autor: Robert S. Hughes, Howard W. H. Lee, Jeffrey E. Davis

Publikováno v: Chemical Physics Letters. 207:540-545

Recent results are reported from our study of a new class of transient electronic defects generated with ultraviolet (UV) photons in hydrogen-bonded molecular solids represented by isomorphs of dihydrogen phosphate. At room temperature, the defect fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff474980ba07f9feeb4afa9aecf1c0dd
https://doi.org/10.1016/0009-2614(93)89044-i

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Light-emitting nanostructures formed by intense, ultrafast electronic excitation in silicon (100)

Autor: Peter A. Thielen, J.W. McDonald, Micheal W. Newman, Thomas Schenkel, Alex V. Hamza, D. H. Schneider, Howard W. H. Lee

Publikováno v: Applied Physics Letters. 79:2973-2975

The intense, ultrafast electronic excitation of clean silicon (100)–(2×1) surfaces leads to the formation of silicon nanostructures embedded in silicon, which photoluminescence at ∼560 nm wavelength (∼2 eV band gap). The silicon surfaces were

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a651832b1e92652708c47d0d39a80a9
https://doi.org/10.1063/1.1413958

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Synthesis and Characterization of Indium Oxide Nanoparticles

Autor: Anirudha Barve, Subhash H. Risbud, Ian M. Kennedy, Amith K Murali, Valerie J. Leppert, Howard W. H. Lee

Publikováno v: Nano Letters. 1:287-289

Nanoparticles of indium oxide, a transparent conducting oxide with a band gap close to GaN, were synthesized by pulsed laser ablation of a pure indium metal target. X-ray diffraction and transmission electron microscopy confirmed that nanocrystalline

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::258a3a4593cc9bb7743fe0b26fd83088
https://doi.org/10.1021/nl010013q

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