High-spatial resolution functional chemistry of nitrogen compounds in the observed UK meteorite fall Winchcombe

Autor: Christian Vollmer, Demie Kepaptsoglou, Jan Leitner, Aleksander B. Mosberg, Khalil El Hajraoui, Ashley J. King, Charlotte L. Bays, Paul F. Schofield, Tohru Araki, Quentin M. Ramasse

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)

Abstract Organic matter in extraterrestrial samples is a complex material that might have played an important role in the delivery of prebiotic molecules to the early Earth. We report here on the identification of nitrogen-containing compounds such a

Externí odkaz: https://doaj.org/article/83b6a0871c1f45029b7d10c5de849618

Atomic-Scale Interface Modification Improves the Performance of Cu(In1–xGax)Se2/Zn(O,S) Heterojunction Solar Cells

Autor: Khalil El Hajraoui, Rolf Waechter, Francis Leonard Deepak, Sascha Sadewasser, Jose Virtuoso, Diego Colombara

Publikováno v: ACS Applied Materials & Interfaces. 13:44207-44213

Cadmium-free buffer layers deposited by a dry vacuum process are mandatory for low-cost and environmentally friendly Cu(In1-xGax)Se2 (CIGS) photovoltaic in-line production. Zn(O,S) has been identified as an alternative to the chemical bath deposited

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc799f47e81c0341005e5f8e6b570cb0
https://doi.org/10.1021/acsami.1c10251

Selectivity boost in partial hydrogenation of acetylene via atomic dispersion of platinum over ceria

Autor: Francis Leonard Deepak, Emanuele Barborini, S. Vinati, Jutta Kröhnert, Khalil El Hajraoui, Loukya Boddapati, Annette Trunschke, Yury V. Kolen'ko, Olumide Bolarinwa Ayodele

Publikováno v: Catalysis Science & Technology

High-throughput flame spray pyrolysis directly affords a low-loading Pt catalyst supported on cerium oxide, which is an excellent material for selective semihydrogenation of C2H2 at 180 °C, exhibiting nearly complete conversion of C2H2 (98.2%) with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4ade4d5a916aa7ee8395f05c496e364
https://doi.org/10.1039/d0cy01592j

Nanotube array-based barium titanate–cobalt ferrite composite film for affordable magnetoelectric multiferroics

Autor: Francis Leonard Deepak, Atsunori Matsuda, Daisaku Yokoe, Xing Wei, Khalil El Hajraoui, Go Kawamura, Mitsuteru Inoue, Aldo R. Boccaccini, Kentaro Oura, Yuichi Nakamura, Wai Kian Tan, Kazuhiro Yamaguchi, Hiroyuki Muto, Taichi Goto

Publikováno v: Journal of Materials Chemistry C. 7:10066-10072

Magnetoelectric multiferroic nanocomposites are increasingly attracting attention from researchers and engineers due to their transformative technological potential. Many papers have so far reported a fundamental understanding and designs of new mult

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b5ab4a0937a862c1998ceb77efa8c06
https://doi.org/10.1039/c9tc02442e

In Situ Transmission Electron Microscopy Analysis of Copper–Germanium Nanowire Solid-State Reaction

Autor: Khalil El hajraoui, Eric Robin, Clemens Zeiner, Alois Lugstein, Stéphanie Kodjikian, Jean-Luc Rouvière, Martien Den Hertog

Publikováno v: Nano Letters
Nano Letters, American Chemical Society, 2019, 19 (12), pp.8365-8371. ⟨10.1021/acs.nanolett.9b01797⟩
Nano Letters, 2019, 19 (12), pp.8365-8371. ⟨10.1021/acs.nanolett.9b01797⟩

International audience; A promising approach of making high quality contacts on semiconductors is a silicidation (for silicon) or germanidation (for germanium) annealing process, where the metal enters the semiconductor and creates a low resistance i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f8c1fd063bd355e4dbe7ab2892a6066
https://hal.archives-ouvertes.fr/hal-02544426/document