Results 51 to 60 of about 10,230 (254)

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

Advanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam, Wejdan Althobaiti, Safakath Karuthedath, Christopher E. Petoukhoff, Amr Dahman, Khawla Alkhezaim, Oleksandr Matiash, José P. Jurado, Mariia Ferree, Ning Su, Jacob Blaskovits, Denis Andrienko, Vladimir Dyakonov, Andreas Sperlich, Vojtech Nádaždy, Tobin J. Marks, Antonio Facchetti, Frédéric Laquai   +17 more
wiley   +1 more source

Bubble Formation Control: Fabrication of Centimeter‐Sized Tissue‐Like Constructs by Catalase‐Coated Oxygen‐Releasing Hydrogel

Advanced Materials, EarlyView.
Oxygen‐releasing hydrogels are widely used to support cell survival in 3D cultures and to promote wound healing. However, incorporating catalase to convert H2O2 into O2 often generates additional oxygen bubbles, leading to material instability which rarely addressed.
Sukulya Bunuasunthon, Isabel F. Amaral, Ana P. Pêgo, Michiya Matsusaki   +3 more
wiley   +1 more source

Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry

Yankuang ceshi, 2013
In Re-Os isotope chronology, the acetone extraction process is quicker and easier compared to the anion exchange method. The Re solution which was separated and purified by acetone extraction is suitable for the measurement by Inductively Coupled Plasma ...
WANG Li-bing, QU Wen-Jun, LI Chao, ZHOU Li-min, DU An-dao, ZU Bo   +5 more
doaj  

Synthesis and Characterization of Barium Hexafluoridoosmates

Crystals, 2017
Two barium hexafluoridoosmates, Ba(OsF6)2 and BaOsF6, were synthesized and were characterized for the first time using X-ray powder and single crystal diffraction, IR spectroscopy, as well as NMR spectroscopy in anhydrous hydrogen fluoride.
Sergei I. Ivlev, Antti J. Karttunen, Magnus R. Buchner, Matthias Conrad, Roman V. Ostvald, Florian Kraus   +5 more
doaj   +1 more source

Thiocyanate complexes of osmium [PDF]

, 1953
Osmium is a hard grey brittle metal which scratches glass. It has a melting point of 2700[degree]C, and a specific gravity of 22.4, which is greater than any other known substance.
Townsend, Craig Albert, Jr.
core   +1 more source

Contrast Mechanism of Osmium Staining in Electron Microscopy of Biological Tissues [PDF]

, 2023
Electron imaging of biological samples stained with heavy metals has enabled visualization of nanoscale subcellular structures critical in chemical-, structural-, and neuro-biology.
Ruiyu, Li, Janek, Rieger, Robert, Klie, Sarah B., King, Gregg, Wildenberg, Yingjie, Yang, Ashley, Arcidiacono, Kevin, Boergens, Narayanan, Kasthuri, Kassandra, Weber   +9 more
core   +1 more source

Additive Manufacturing of Ordered Polymer Nanostructures

Advanced Materials, EarlyView.
A new 3D printing strategy, Polymerization‐Induced Arrangement of Nanostructures with Order‐tunability (PIANO), enables the formation of ordered nanostructures in polymer materials by enhancing chain mobility during photopolymerization, overcoming the kinetic arrest that leads to disordered morphologies in the conventional Polymerization‐Induced ...
Di Wu, Kun Zhou, Kenny Lee, Yuan Xiu, Carol Hiu Wai Yan, Khoon S. Lim, Cyrille Boyer   +6 more
wiley   +1 more source

Ligand Engineering for Precise Control of Ultrathin CsPbI3 Nanoplatelet Superlattices for Efficient Light‐Emitting Diodes

Advanced Materials, EarlyView.
In this work, we introduce ancillary‐ligand‐mediated growth control of ultrathin CsPbI3 PeNPLs to achieve highly uniform thickness and reduced agglomeration. Strong ancillary‐ligand coordination to the perovskite surface regulates nucleation and improves surface passivation, enabling color‐pure emission and preferentially oriented superlattices.
Jongbeom Kim, Woo Hyeon Jeong, Junzhi Ye, Allison Nicole Arber, Vikram, Donghan Kim, Yi‐Teng Huang, Yixin Wang, Dongeun Kim, Dongryeol Lee, Chia‐Yu Chang, Xinyu Shen, Sung Yong Bae, Ashish Gaurav, Ye In Kim, Jinkyu Yang, Boseung Je, Changsoon Cho, Akshay Rao, Henry J. Snaith, M. Saiful Islam, Bo Ram Lee, Myoung Hoon Song, Robert L. Z. Hoye   +23 more
wiley   +1 more source

DIFFERENTIAL PULSE POLAROGRAPHIC DETERMINATION OF OSMIUM BY CATALYSIS OF PYROGALLOL-RED BROMATE REACTION [PDF]

Journal of Sciences, Islamic Republic of Iran, 1997
A highly sensitive differential pulse polarographic (DPP) method has been developed for the determination of trace amounts of osmium, based on the catalytic effect of osmium (VIII) on the oxidation of pyrogallol red (PGR) by sodium bromate at pH 7.00 and
doaj  

Osmium Nanoparticles-Polypropylene Hollow Fiber Membranes Applied in Redox Processes

Nanomaterials, 2021
Composite membranes play a very important role in the separation, concentration, and purification processes, but especially in membrane reactors and membrane bioreactors.
Gheorghe Nechifor, Florentina Mihaela Păncescu, Alexandra Raluca Grosu, Paul Constantin Albu, Ovidiu Oprea, Szidonia-Katalin Tanczos, Constantin Bungău, Vlad-Alexandru Grosu, Andreia Pîrțac, Aurelia Cristina Nechifor   +9 more
doaj   +1 more source