S
Stephen R. Leone
Researcher at University of California, Berkeley
Publications - 745
Citations - 26047
Stephen R. Leone is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Laser & Excited state. The author has an hindex of 72, co-authored 723 publications receiving 23376 citations. Previous affiliations of Stephen R. Leone include Lawrence Berkeley National Laboratory & Joint Institute for Nuclear Research.
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Journal ArticleDOI
Real-time observation of valence electron motion
Eleftherios Goulielmakis,Zhi-Heng Loh,Zhi-Heng Loh,Adrian Wirth,Robin Santra,Robin Santra,Nina Rohringer,Vladislav S. Yakovlev,Sergey Zherebtsov,Thomas Pfeifer,Thomas Pfeifer,Thomas Pfeifer,Abdallah M. Azzeer,Matthias F. Kling,Stephen R. Leone,Stephen R. Leone,Ferenc Krausz +16 more
TL;DR: An attosecond pump–probe measurement of the density matrix of valence electrons in atomic krypton ions is reported, able to completely characterize the quantum mechanical electron motion and determine its degree of coherence in the specimen of the ensemble.
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Lasing in robust cesium lead halide perovskite nanowires
Samuel W. Eaton,Minliang Lai,Natalie A. Gibson,Natalie A. Gibson,Andrew B. Wong,Andrew B. Wong,Letian Dou,Letian Dou,Jie Ma,Lin-Wang Wang,Stephen R. Leone,Stephen R. Leone,Peidong Yang,Peidong Yang +13 more
TL;DR: Low-temperature, solution-phase growth of cesium lead halide nanowires exhibiting low-threshold lasing and high stability are reported, which makes these nanowire lasers attractive for device fabrication.
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Attosecond band-gap dynamics in silicon
Martin Schultze,Martin Schultze,Krupa Ramasesha,Chaitanya Das Pemmaraju,Shunsuke A. Sato,Desire Whitmore,Andrey Gandman,James S. Prell,Lauren J. Borja,David Prendergast,Kazuhiro Yabana,Daniel M. Neumark,Daniel M. Neumark,Stephen R. Leone,Stephen R. Leone +14 more
TL;DR: Attosecond extreme ultraviolet (XUV) spectroscopy is used to resolve the electron transfer from valence to conduction band states in semiconductors, and distinguished the electron dynamics—which proceed faster than a quadrillionth of a second after laser excitation—from the comparatively slower lattice motion of the silicon atomic nuclei.
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Synthesis of Composition Tunable and Highly Luminescent Cesium Lead Halide Nanowires through Anion-Exchange Reactions
Dandan Zhang,Yiming Yang,Yehonadav Bekenstein,Yi Yu,Natalie A. Gibson,Andrew B. Wong,Samuel W. Eaton,Nikolay Kornienko,Qiao Kong,Minliang Lai,A. Paul Alivisatos,Stephen R. Leone,Peidong Yang +12 more
TL;DR: The successful synthesis of brightly emitting colloidal cesium lead halide nanowires (NWs) with uniform diameters and tunable compositions with increased functionality in the form of fast photoresponse rates and the low defect density suggest CsPbX3 NWs as prospective materials for optoelectronic applications.
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Operando spectroscopic analysis of an amorphous cobalt sulfide hydrogen evolution electrocatalyst
Nikolay Kornienko,Joaquin Resasco,Nigel Becknell,Chang-Ming Jiang,Yi-Sheng Liu,Kaiqi Nie,Xuhui Sun,Jinghua Guo,Stephen R. Leone,Stephen R. Leone,Peidong Yang,Peidong Yang +11 more
TL;DR: This work utilizes Raman spectroscopy and X-ray absorptionSpectroscopy as a tool to elucidate the structure and function of an amorphous cobalt sulfide (CoSx) catalyst and surmise that these CoS2-like clusters form under cathodic polarization and expose a high density of catalytically active sulfur sites for the HER.