Results 91 to 100 of about 156,621 (307)

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

Advanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora, Seung Ju Choi, Jaeki Jeong, Silvia Orecchio, Inés García‐Benito, Manuel Pérez‐Escribano, Joaquín Calbo, Likai Zheng, Minseop Byun, Seyeong Song, Gi‐Hwan Kim, Shaik M. Zakeeruddin, Seog‐Young Yoon, Yimhyun Jo, Agustín Molina‐Ontoria, Enrique Ortí, Nazario Martín, Michael Grätzel   +17 more
wiley   +1 more source

Chemo-and regioselective aqueous phase, co-acid free nitration of aromatics using traditional and nontraditional activation methods

Frontiers in Chemistry
Electrophilic aromatic nitrations are used for the preparation of a variety of synthetic products including dyes, agrochemicals, high energy materials, fine chemicals and pharmaceuticals.
Kelsey M. Plasse, Tara R. Mooney, Maxim Mastyugin, Maximilian Costa, Béla Török   +4 more
doaj   +1 more source

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

Advanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin, Jose M. Marin‐Beloqui, Juan T. López Navarrete, Juan Casado, Francisco Najera, Ezequiel Perez‐Inestrosa   +5 more
wiley   +1 more source

Study on Reaction of Water Dimer Radical Cation with Benzene and its Derivatives Using Mass Spectrometry

Zhipu Xuebao
Study of chemical properties of water radical cations is of great significance for elucidating related reactions process. In this paper, the reaction characteristics of (H2O)2+• prepared online with several benzene derivatives were investigated.
Huang-li YANG, Xiao-fei GAO, Guo-bin TAN, Xing-lei ZHANG, Zhen ZHOU, Huan-wen CHEN   +5 more
doaj   +1 more source

Novel Synthesis and Structures of Tris-Annelated Benzene Donors for the Electron-Density Elucidation of the Classical Mills−Nixon Effect [PDF]

, 1998
A versatile method for the high-yield synthesis of various tris-, bis-, and mono-annelated benzenes (as well as cyclooctatetraene) is based on the Pd-catalyzed coupling of three (or four) ethylenic units comprised of α,β-dibromoalkenes and α‘-alkenyl ...
Kochi, Jay K., Kumar, A. S., Lindeman, Sergey V., Rathore, Rajendra   +3 more
core   +1 more source

Theory of excited state absorptions in phenylene-based $\pi$-conjugated polymers

, 2003
Within a rigid-band correlated electron model for oligomers of poly-(paraphenylene) (PPP) and poly-(paraphenylenevinylene) (PPV), we show that there exist two fundamentally different classes of two-photon A$_g$ states in these systems to which ...
A. Chakrabarti, A. Köhler, A. Mathy, A. Race, Alok Shukla, B. Kraabel, C. Gadermaier, C. Gadermaier, C. Silva, C. Zenz, C.J. Baker, C.W.M. Castleton, D. Beljonne, D. Comoretto, D. Moses, D. Yaron, D.L. Beveridge, E.E. Moore, E.K. Miller, F. Guo, F. Hide, H. Ghosh, Haranath Ghosh, J. Cornil, J.A. Pople, J.G. Müller, J.M. Leng, J.W.P. Hsu, K. Ohno, K. Tandon, M. Chandross, M. Chandross, M. Chandross, M. Chandross, M. Liess, M. Wohlgennant, M. Yan, M.G. Harrison, M.G. Harrison, M.J. Rice, M.Y. Lavrentiev, N. Tessler, P. Tavan, P.B. Miranda, P.C.M. McWilliams, R. Pariser, R. Österbacka, R.H. Friend, R.J. Buenker, S. Abe, S. Mazumdar, S.J. Martin, S.N. Dixit, S.V. Frolov, S.V. Frolov, S.V. Frolov, Sumit Mazumdar, U. Lemmer, V.I. Klimov, Y. Shimoi, Z.G. Soos, Z.G. Soos   +61 more
core   +1 more source

Dual Induction of New Microbial Secondary Metabolites by Fungal Bacterial Co-cultivation [PDF]

, 2017
We thank the College of Physical Sciences, University of Aberdeen, for provision of infrastructure and facilities in the Marine Biodiscovery Centre.
Ebel, Rainer, Hassan, Hossam M., Jaspars, Marcel, Rateb, Mostafa E., Wakefield, Jennifer   +4 more
core   +2 more sources

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

Advanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas, Lucía Torrico‐García‐Viso, Jose Antonio Suárez del Pino, Nekane Aramburu‐Merino, Pilar Segovia, Enrique G. Michel, Josep Puigmartí‐Luis, Enrique Velasco, Pedro Tarazona, Daniel Maspoch, David Rodríguez‐San‐Miguel, Félix Zamora   +11 more
wiley   +1 more source

Synthesis and Characterization of Novel Benzimidazole Derivatives using CdO NPs and their Application as Antibacterial and Antifungal Agents

Al-Mustansiriyah Journal of Science
Background: Benzimidazoles are a class of compounds characterized by a fusion of benzene and imidazole rings. This unique structure endows them with a broad spectrum of biological activities, making them invaluable in medicinal and pharmaceutical ...
Asmaa M. Abdullah, Abdull Jabar Kh. Attia, Sergei N. Shtykov   +2 more
doaj   +1 more source