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Xihua Wang
Researcher at University of Alberta
Publications - 101
Citations - 5736
Xihua Wang is an academic researcher from University of Alberta. The author has contributed to research in topics: Quantum dot & Solar cell. The author has an hindex of 25, co-authored 90 publications receiving 5220 citations. Previous affiliations of Xihua Wang include Boston University & University of Texas at Austin.
Papers
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Journal ArticleDOI
Colloidal-quantum-dot photovoltaics using atomic-ligand passivation
Jiang Tang,Kyle W. Kemp,Sjoerd Hoogland,Kwangseob Jeong,Huan Liu,Huan Liu,Larissa Levina,Melissa Furukawa,Xihua Wang,Ratan Debnath,Dongkyu Cha,Kang Wei Chou,Armin Fischer,Aram Amassian,John B. Asbury,Edward H. Sargent +15 more
TL;DR: An atomic ligand strategy is established that makes use of monovalent halide anions to enhance electronic transport and successfully passivate surface defects in PbS CQD films that shows up to 6% solar AM1.5G power-conversion efficiency.
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Depleted-Heterojunction Colloidal Quantum Dot Solar Cells
Andras G. Pattantyus-Abraham,Illan J. Kramer,Aaron R. Barkhouse,Xihua Wang,Gerasimos Konstantatos,Ratan Debnath,Larissa Levina,Ines Raabe,Mohammad Khaja Nazeeruddin,Michael Grätzel,Edward H. Sargent +10 more
TL;DR: In this article, the Schottky device was optimized and explained in terms of a depletion region driving electron−hole pair separation on the semiconductor side of a junction between an opaque low-work-function metal and a p-type CQD film.
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Tandem colloidal quantum dot solar cells employing a graded recombination layer
Xihua Wang,Ghada I. Koleilat,Jiang Tang,Huan Liu,Huan Liu,Illan J. Kramer,Ratan Debnath,Lukasz Brzozowski,D. Aaron R. Barkhouse,Larissa Levina,Sjoerd Hoogland,Edward H. Sargent +11 more
TL;DR: In this paper, a colloidal quantum-dot solar cell with two junctions, each designed to absorb and convert different spectral bands of light within the solar spectrum, is presented.
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Quantum dot photovoltaics in the extreme quantum confinement regime: the surface-chemical origins of exceptional air- and light-stability.
Jiang Tang,Lukasz Brzozowski,D. Aaron R. Barkhouse,Xihua Wang,Ratan Debnath,Remigiusz Wolowiec,Elenita Palmiano,Larissa Levina,Andras G. Pattantyus-Abraham,Damir Jamakosmanovic,Edward H. Sargent +10 more
TL;DR: The origins of this orders-of-magnitude improvement in air stability compared to larger PbS dots are explored, and evidence is offered in support of an explanation based on the high rate of oxidation of sulfur-rich surfaces preponderant in highly faceted large-diameter P bS colloidal quantum dots.
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Time-resolved electron-temperature measurement in a highly excited gold target using femtosecond thermionic emission.
TL;DR: Direct measurement of hot-electron temperatures and relaxation dynamics for peak electron temperatures between 3400 and 11000 K utilizing two-pulse-correlation femtosecond thermionic emission is reported.