Article
Chemistry, Multidisciplinary
Nathan R. Wolf, Adam Jaffe, Adam H. Slavney, Wendy L. Mao, Linn Leppert, Hemamala I. Karunadasa
Summary: This study investigates the effects of pressure on defects in halide perovskites. The results show that pressure can modify the conductivity and bandgap of the material, and there is complex optoelectronic behavior that cannot be explained solely by the evolving bandgap.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Zhaoting Zhang, Hong Yan, Zhen Huang, Xiao Chi, Changjian Li, Zhi Shiuh Lim, Shengwei Zeng, Kun Han, Ganesh Ji Omar, Kexin Jin, Ariando Ariando
Summary: The magnetic properties of epitaxial double-perovskite Sr2FeReO6 films can be tuned by adjusting the deposition pressure of oxygen and lattice mismatch. Epitaxial strain modulates B-site ordering by affecting elemental valence, leading to changes in magnetic behavior.
Article
Chemistry, Physical
Padraig Kearins, Elena Solana-Madruga, Kunlang Ji, Clemens Ritter, J. Paul Attfield
Summary: CaMnFeTaO6 has been synthesized at 1200 degrees C under 10 GPa pressure, adopting a double double perovskite structure with cation disorder at all transition-metal sites. Although magnetization measurements reveal apparent ferro- or ferrimagnetic transitions at specific temperatures, no long-range magnetic order is observed by neutron diffraction down to 1.5 K.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Chao Sun, Liuzhen Bian, Ji Qi, Wang Yu, Shuting Li, Yunting Hou, Liju Wang, Jun Peng, Shengli An
Summary: The study presents a promising cathode material, Sr1.9La0.1Fe1.5Mo0.5O6-delta, for CO2 electrolysis, which exhibits excellent electrochemical performance and stability.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Masaki Hada, Satoshi Ohmura, Tadahiko Ishikawa, Masaki Saigo, Naoya Keio, Wataru Yajima, Tatsuya Suzuki, Daisuke Urushihara, Kou Takubo, Yusuke Masaki, Makoto Kuwahara, Kenji Tsuruta, Yasuhiko Hayashi, Jiro Matsuo, Takayoshi Yokoya, Ken Onda, Fuyuki Shimojo, Muneaki Hase, Sumio Ishihara, Toru Asaka, Nobuyuki Abe, Taka-hisa Arima, Shin-ya Koshihara, Yoichi Okimoto
Summary: The study utilized ultrafast time-resolved electron diffraction to observe the large displacement of oxide ions in a solid material under near-ultraviolet photoexcitation at room temperature, revealing the mechanism of photoinduced transport of oxide ions.
APPLIED MATERIALS TODAY
(2021)
Article
Materials Science, Multidisciplinary
Zhijin Xu, Huajie Wu, Dong Li, Wentao Wu, Lina Li, Junhua Luo
Summary: The new layered hybrid double perovskite (I-BA)(4)AgBiI8 demonstrated a high sensitivity and superior X-ray response, with a mu(tau) product up to approximately 2.28 x 10(-3) cm(2) V-1 and a sensitivity of 5.38 mu C Gy(air)(-1) cm(-2), showing great potential in the field of X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Shishir K. Pandey, Ashis K. Nandy, Poonam Kumari, Priya Mahadevan
Summary: This study investigates the puzzling observation of room temperature ferromagnetism in Sr2FeReO6 and finds that on-site Coulomb interactions at the nonmagnetic Re sites are crucial for obtaining the experimental value of the ferromagnetic transition temperature. The enhancement in T-c with U is attributed to the enhanced exchange splitting introduced at these sites, destabilizing the antiferromagnetic exchange channels.
Article
Materials Science, Multidisciplinary
Jiongyao Wu, Marcel Zoellner, Sebastian Esser, Vijaya Begum, Guenther Prinz, Axel Lorke, Philipp Gegenwart, Rossitza Pentcheva
Summary: The electronic, magnetic, and optical properties of the double perovskite Sr2CoIrO6 under biaxial strain were investigated using density functional theory with Hubbard U term and spin-orbit coupling, revealing that Co and Ir exhibit different spin and orbital moments under varying strain conditions. The band gap shows a nonmonotonic change due to the inclusion of many-body effects, including excitonic effects. The study highlights the complex electronic structure and optical properties of SCIO.
Article
Materials Science, Multidisciplinary
Congyang Zhang, Silvia Mariotti, Luis K. Ono, Chenfeng Ding, Kirill Mitrofanov, Caiyi Zhang, Shuai Yuan, Penghui Ji, Jiahao Zhang, Tianhao Wu, Ryota Kabe, Yabing Qi
Summary: By conducting systematic surface science studies and characterizations of a [2-(9H-carbazol-9-yl)ethyl]phosphonic acid (2PACz)-based hole injection monolayer (HIML), we investigated its effects on work function engineering, energetic alignment, hole injection, and radiative recombination in metal halide perovskite light emitting diodes (PeLEDs). We demonstrated the universality and cost-effective nature of the HIML-based strategy by fabricating efficient blue emissive PeLEDs with enlarged device area.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Multidisciplinary Sciences
Shuaibo Zhai, Jiaqi Gong, Yifei Feng, Zhongbao Que, Weiwei Mao, Xuemin He, Yannan Xie, Xing'ao Li, Liang Chu
Summary: This study presents the design and performance of a double perovskite memristor with the utilization of p-n junction unidirectional conductivity for multistate storage. The device showed reliable resistive switching characteristics and long-term stability due to the all-inorganic layers.
Article
Chemistry, Physical
S. U. Costilla-Aguilar, M. J. Escudero, R. F. Cienfuegos-Pelaes, J. A. Aguilar-Martinez
Summary: Double perovskite La1.8Sr0.2CoFeO5+delta (DP-LSCF) exhibits excellent chemical compatibility and physical-chemical properties, making it a promising cathode material for intermediate temperature solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Thibaut Martinez, Avassaya Vanitcha, Claire Troufflard, Nicolas Vanthuyne, Jeremy Forte, Geoffrey Gontard, Gilles Lemiere, Virginie Mouries-Mansuy, Louis Fensterbank
Summary: In this study, a new family of carbene ligands based on an indolizine-ylidene (Indolizy) moiety is reported, with corresponding gold(I) complexes exhibiting strong sigma-donating and pi-accepting properties. Cationization of the gold(I) complexes generates catalytic species for diverse reactions, and bifunctional carbene ligands with specific structural features enable highly enantioselective heterocyclizations. DFT calculations provide rationalization and highlight the critical roles of the phosphine oxide group and the tosylate anion in asymmetric cyclizations of gamma-allenols.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Electrical & Electronic
S. Behera, B. N. Parida, R. K. Parida, R. Padhee
Summary: The eco-friendly polycrystalline sample Mg2LaVO6 was synthesized using the solid state reaction technique. By optimizing the calcination temperature, a single phase new compound was obtained. The sample shows potential applications in multilayer capacitors and micro-electronics, as well as useful thermistor devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Purva Chibde, Ravindra K. Raut, Vikas Kumar, Rahul Deb, Rajesh Gonnade, Moumita Majumdar
Summary: The synthesis and reactions of intramolecularly double-donor-stabilized stannylene compound, as well as the formation of various complexes from the reactions, have been investigated. The study showed changes in the hybridization of the central Sn(II) atom upon metal coordination.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Ajeet Singh, Biao Yuan, Md. Habibur Rahman, Hanjun Yang, Angana De, Jee Yung Park, Shuchen Zhang, Libai Huang, Arun Mannodi-Kanakkithodi, Timothy J. Pennycook, Letian Dou
Summary: This study reports the epitaxial core-shell heterostructures of Pb-free double perovskites grown around Pb perovskite 2D crystals. The growth of the Pb-free shell at 45 degrees on the (100) surface of the lead perovskite core is observed in all Pb-free cases. In-depth structural analysis confirms the growth of the Pb-free shell along the [110] direction of the Pb perovskite. Interestingly, the diffusion of halide anions in Pb-free 2D perovskites is significantly suppressed compared to Pb-based 2D perovskites.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Elizabeth A. Pogue, Andre Sutrisno, Nicole E. Johnson, Daniel P. Shoemaker, Angus A. Rockett
INORGANIC CHEMISTRY
(2017)
Article
Chemistry, Physical
Elizabeth Ann Pogue, Michael Paris, Andre Sutrisno, Alain Lafond, Nicole Johnson, Daniel P. Shoemaker, Angus A. Rockett
CHEMISTRY OF MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
Rajeev Nepal, Vinay Sharma, Lisa Pogue, Natalia Drichko, Ramesh C. Budhani
Summary: This study reports the observation of anisotropic magnetoresistance (AMR) and planar Hall effect (PHE) in polycrystalline thin films of Bi2Te3. Despite the differences in carrier density and mobility compared to epitaxial films and single crystals, similar AMR and PHE were observed in the films, which may be important for scalable production of Bi2Te3 based AMR and PHE sensors.
Article
Physics, Applied
Vinay Sharma, Rajeev Nepal, Weipeng Wu, E. A. Pogue, Ravinder Kumar, Rajeswari Kolagani, Lars Gundlach, M. Benjamin Jungfleisch, Ramesh C. Budhani
Summary: Spin-to-charge conversion processes in thin-film heterostructures have been studied by quantifying the spin-to-charge conversion in a 3D topological insulator Bi2Te3 interfaced with an epitaxial film of Fe75Co25. The conversion is measured using ferromagnetic resonance based inverse spin Hall effect (ISHE) and femtosecond light-pulse induced emission of terahertz radiation. The role of extrinsic effects like anisotropic magnetoresistance (AMR) and planar Hall effects (PHE) is observed at the GHz timescale, while no detectible signal is found in THz measurements, potentially due to different rectification mechanisms and thermal effects. The spin diffusion length is found to be comparable in both cases, suggesting the importance of spin pumping timescales in ISHE signals generation.
APPLIED PHYSICS LETTERS
(2023)