Results 41 to 50 of about 17,043 (302)

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong, Juan Anthony Prayogo, Soobin Heo, Jae Sung Yun, Dong Ryeol Whang, Dong Wook Chang, Hui Joon Park   +6 more
wiley   +1 more source

Bis(thiocyanato-κN)[tris(2-pyridylmethyl)amine-κ4N,N′,N′′,N′′′]nickel(II) methanol hemisolvate

Acta Crystallographica Section E, 2009
The title complex, [Ni(NCS)2(C18H18N4)]·0.5CH3OH, consists of two crystallographically distinct complexes and a methanol solvent molecule. The NiII complexes are pseudo-octahedral six-coordinate, with the tris(2-pyridylmethyl)amine (TPA) ligand ...
Sajini R. Randeniya, Richard E. Norman
doaj   +1 more source

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

Advanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally, Paul L. Burn, Paul E. Shaw   +2 more
wiley   +1 more source

Label free colorimetric sensing of thiocyanate based on inducing aggregation of Tween 20-stabilized gold nanoparticles [PDF]

, 2012
Based on inducing the aggregation of gold nanoparticles (AuNPs), a simple colorimetric method with high sensitivity and selectivity was developed for the sensing of thiocyanate (SCN-) in aqueous solutions.
Chen, Lingxin, Chen, Zhaopeng, Pan, Dawei, Qu, Chengli, Zhang, Jun, Zhang, Zhiyang   +5 more
core   +1 more source

Decoupling the Transparency‐Efficiency Trade‐Off in Semi‐Transparent Organic Solar Cells via Optimized Dual‐Channel Photoelectric Conversion

Advanced Science, EarlyView.
The respective roles of the heterojunction (HJ) and spontaneously formed photo‐charge (SP) channels in low‐donor‐content devices have been decoupled and subjected to a targeted optimization strategy. A breakthrough of light utilization efficiency (LUE) in semi‐transparent organic solar cells (ST‐OSCs) is achieved.
Yuyan Li, Shibo Wang, Heng Liu, Bonan Shi, Zhuoqiong Zhang, Yabing Tang, Yuting Song, Shu Kong So, Dongbin Dang, Han Yan, Xinhui Lu, Guilong Cai, Suojiang Zhang   +12 more
wiley   +1 more source

Glucosinolates in plant protection strategies: A review [PDF]

, 2012
This review discusses the importance of glucosinolates in plant protection. The Brassicaceae, which are cultivated worldwide, use glucosinolates and their decomposition products to defend themselves against attacks by harmful organisms.
Ban D., Ban Goreta Smiljana, Bohinc Tanja, Trdan S.   +3 more
core   +1 more source

High‐Sublimation‐Temperature Additives for Efficient Perovskite Solar Cells via Single‐Source Evaporation

Advanced Energy Materials, EarlyView.
The introduction of high‐sublimation‐temperature additives during the mechanosynthesis of FAPbI3 powders enables the single‐source evaporation of phase‐pure, additive‐free FAPbI3 thin films of high optoelectronic quality. The additive‐engineered deposition process yields photovoltaic devices with stabilized efficiencies exceeding 18% for an active ...
Zongbao Zhang, Ran Ji, Tim Schramm, Elena Siliavka, Chunqiu Zheng, Julius Brunner, Bekcy Joseph, Kashimul Hossain, Angelika Wrzesinska‐Lashkova, Vladimir Shilovskikh, Tianyu Zhao, Nathaniel P. Gallop, Boris Rivkin, Yana Vaynzof   +13 more
wiley   +1 more source

Otto Billeter or How the Oldest [3,3]-Sigmatropic Rearrangement went to Neuchâtel, Part 2 Otto Billeter oder wie die älteste [3,3]-sigmatrope Umlagerung nach Neuenburg kam: Teil 2

CHIMIA, 2000
The historical survey of the uncatalyzed, thermal rearrangement of thiocyanates into isothiocyanates is continued, starting with a review of Otto Billeter's scientific and social career in Neuchâtel. A specific look is taken at 1925 where Ludwig
Hans-Jürgen Hansen
doaj   +2 more sources

Ultrasound-promoted synthesis of novel fused heterocycles by criss-cross cycloaddition

Journal of Saudi Chemical Society, 2016
This work reports a novel and highly efficient methodology for the synthesis of perhydrotriazolotriazoledithions from two successive 1,3-dipolar cycloaddition under ultrasound irradiation.
Javad Safari, Soheila Gandomi-Ravandi, Marzieh Ghotbinejad   +2 more
doaj   +1 more source

The crystal structure of urea nitrate [PDF]

, 1969
The structure of urea nitrate has been solved, by the use of three-dimensional X-ray data. Data were collected using Cu Ke and Mo K0~ radiations. The structure consists of layers with urea and nitrate groups held together by hydrogen bonds. The positions
Feil, D., Harkema, S.
core   +3 more sources