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Abdelaziz Boulesbaa
Researcher at Oak Ridge National Laboratory
Publications - 32
Citations - 2192
Abdelaziz Boulesbaa is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Exciton & Perovskite (structure). The author has an hindex of 18, co-authored 28 publications receiving 1765 citations. Previous affiliations of Abdelaziz Boulesbaa include Temple University & California State University, Northridge.
Papers
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Journal ArticleDOI
Nonlinear Fano-Resonant Dielectric Metasurfaces.
Yuanmu Yang,Wenyi Wang,Abdelaziz Boulesbaa,Ivan I. Kravchenko,Dayrl P. Briggs,Alexander A. Puretzky,David B. Geohegan,Jason Valentine +7 more
TL;DR: The Fano-resonant silicon metasurface results in strong near-field enhancement within the volume of the silicon resonator while minimizing two photon absorption and results in transmission modulation with a modulation depth of 36%.
Journal ArticleDOI
Interlayer Coupling in Twisted WSe2/WS2 Bilayer Heterostructures Revealed by Optical Spectroscopy
Kai Wang,Bing Huang,Bing Huang,Mengkun Tian,Frank Ceballos,Ming-Wei Lin,Masoud Mahjouri-Samani,Abdelaziz Boulesbaa,Alexander A. Puretzky,Christopher M. Rouleau,Mina Yoon,Hui Zhao,Kai Xiao,Gerd Duscher,David B. Geohegan +14 more
TL;DR: The interlayer coupling for the WSe2/WS2 bilayer heterojunctions indicated by substantial PL quenching, enhanced absorption, and rapid charge transfer was found to be insensitive to the relative twist angle, indicating that stamping provides a robust approach to realize reliable optoelectronics.
Journal ArticleDOI
Ultrafast Charge Separation at CdS Quantum Dot/Rhodamine B Molecule Interface
Abdelaziz Boulesbaa,Abey Issac,Dave Stockwell,Zhuangqun Huang,Jier Huang,Jianchang Guo,Tianquan Lian +6 more
TL;DR: The rapid and controllable charge separation in this model quantum dot−adsorbate complex provides a potential approach for separating multiple excitons before the exciton−exciton annihilation process.
Journal ArticleDOI
Patterned arrays of lateral heterojunctions within monolayer two-dimensional semiconductors.
Masoud Mahjouri-Samani,Ming-Wei Lin,Kai Wang,Andrew R. Lupini,Jaekwang Lee,Leonardo Basile,Abdelaziz Boulesbaa,Christopher M. Rouleau,Alexander A. Puretzky,Ilia N. Ivanov,Kai Xiao,Mina Yoon,David B. Geohegan +12 more
TL;DR: This demonstration of lateral heterojunction arrays within a monolayer crystal is an essential step for the integration of two-dimensional semiconductor building blocks with different electronic and optoelectronic properties for high-density, ultrathin devices.
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Tailoring Vacancies Far Beyond Intrinsic Levels Changes the Carrier Type and Optical Response in Monolayer MoSe2-x Crystals.
Masoud Mahjouri-Samani,Liangbo Liang,Akinola D. Oyedele,Akinola D. Oyedele,Yong-Sung Kim,Yong-Sung Kim,Yong-Sung Kim,Mengkun Tian,Nicholas Cross,Kai Wang,Ming-Wei Lin,Abdelaziz Boulesbaa,Christopher M. Rouleau,Alexander A. Puretzky,Kai Xiao,Mina Yoon,Gyula Eres,Gerd Duscher,Gerd Duscher,Bobby G. Sumpter,David B. Geohegan +20 more
TL;DR: It is shown that post-selenization using pulsed laser evaporated Se atoms can repair Se-vacant sites to nearly recover the properties of the pristine crystals and reveal the underlying mechanisms for the corresponding vacancy-induced electrical and optical transitions.