Controlled doping of molecular organic layers: Physics and device prospects

2007 ◽  
pp. 77-90 ◽  
Author(s):  
M. Pfaiffer ◽  
T. Fritz ◽  
J. Blochwitz ◽  
A. Nollau ◽  
B. Plönnigs ◽  
...  
Keyword(s):  
Organic Layers ◽  
Controlled Doping

A TEM study of the interface between organic matrix and aragonite in a biological hard tissue, nacre

1992 ◽  
Vol 50 (2) ◽  
pp. 1024-1025
Author(s):  
Jun Liu ◽  
Katie E. Gunnison ◽  
Mehmet Sarikaya ◽  
Ilhan A. Aksay
Keyword(s):  
Mechanical Properties ◽  
Ion Beam ◽  
Laminated Composite ◽  
Organic Matrix ◽  
Pearl Oyster ◽  
Interfacial Structure ◽  
Interfacial Region ◽  
Thin Sections ◽  
Organic Layers ◽  
Transmission Electron

The interfacial structure between the organic and inorganic phases in biological hard tissues plays an important role in controlling the growth and the mechanical properties of these materials. The objective of this work was to investigate these interfaces in nacre by transmission electron microscopy. The nacreous section of several different seashells -- abalone, pearl oyster, and nautilus -- were studied. Nacre is a laminated composite material consisting of CaCO3 platelets (constituting > 90 vol.% of the overall composite) separated by a thin organic matrix. Nacre is of interest to biomimetics because of its highly ordered structure and a good combination of mechanical properties. In this study, electron transparent thin sections were prepared by a low-temperature ion-beam milling procedure and by ultramicrotomy. To reveal structures in the organic layers as well as in the interfacial region, samples were further subjected to chemical fixation and labeling, or chemical etching. All experiments were performed with a Philips 430T TEM/STEM at 300 keV with a liquid Nitrogen sample holder.

scholarly journals Efficient hierarchical models for reactivity of organic layers on semiconductor surfaces

2021 ◽  
Vol 42 (12) ◽  
pp. 827-839 ◽  
Author(s):  
Jan‐Niclas Luy ◽  
Mahlet Molla ◽  
Lisa Pecher ◽  
Ralf Tonner
Keyword(s):  
Hierarchical Models ◽  
Semiconductor Surfaces ◽  
Organic Layers

scholarly journals Occurrence of drug target residues within decantation tank sediments: a good clue to assess their historical excretion?

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Thomas Thiebault ◽  
Laëtitia Fougère ◽  
Anaëlle Simonneau ◽  
Emilie Destandau ◽  
Claude Le Milbeau ◽  
...  
Keyword(s):  
Drug Target ◽  
Chemical Properties ◽  
Deposition Process ◽  
Drug Consumption ◽  
Organic Layers ◽  
Sewer Systems ◽  
Physico Chemical ◽  
Deep Underground ◽  
Deposition Processes

AbstractThis study investigated the potential of sediments accumulated in sewer systems to record human activities through the occurrence of drug target residues (DTR). The installation studied is 17 m deep underground decantation tank that traps the coarse fractions of a unitary sewer system (northern part of Orléans, France), collecting both stormwater and wastewater. The sediments deposited in this tank could constitute a nonesuch opportunity to study the historical evolution of illicit and licit drug consumption in the catchment, however, the deposition processes and the record of DTRs remain largely unknown at present. Five cores were acquired from 2015 to 2017. One hundred fifty-two sediment samples were extracted using a mixture of ultra-pure water:methanol (1:1) prior to analysis of the extracts by high-pressure liquid chromatography coupled to tandem mass spectrometry. Several classical sedimentological analyses such as total organic carbon, facies description and granulometry were also performed on these samples, in order to understand the most important factors (e.g., physico-chemical properties of the DTRs, solid type, assumed load in wastewater) impacting their deposition.The key role of the speciation of DTRs was highlighted by the higher contents in neutral and anionic DTRs in organic layers, whereas only cationic DTRs were found in mineral layers. The considerable modifications in the sediments’ properties, generated by distinct origins (i.e., stormwater or wastewater), are therefore the most important drivers that must be taken into account when back-calculating the historical patterns of drug consumption from their DTR concentrations in decantation tank sediments. Further research remains necessary to fully understand the deposition process, but this study provides new clues explaining these temporal evolutions.

Robust photocatalytic hydrogen production on metal-organic layers of Al-TCPP with ultrahigh turnover numbers

2021 ◽  
Author(s):  
Hui Yu ◽  
Xiang Wu ◽  
Qiaoqiao Mu ◽  
Zhihe Wei ◽  
Yindong Gu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Photocatalytic Hydrogen Production ◽  
Organic Layers ◽  
Metal Organic

Radial-Position-Controlled Doping of CdS/ZnS Core/Shell Nanocrystals: Surface Effects and Position-Dependent Properties

2009 ◽  
Vol 15 (13) ◽  
pp. 3186-3197 ◽  
Author(s):  
Yongan Yang ◽  
Ou Chen ◽  
Alexander Angerhofer ◽  
Y. Charles Cao
Keyword(s):  
Surface Effects ◽  
Radial Position ◽  
Core Shell ◽  
Controlled Doping

The Influence of Graphene on the Electrical Communication Through Organic Layers on Graphite and Gold Electrodes

2013 ◽  
Vol 26 (1) ◽  
pp. 84-92 ◽  
Author(s):  
Xidan Zong ◽  
Na Kong ◽  
Jingquan Liu ◽  
Wenrong Yang ◽  
Mengmei Cao ◽  
...  
Keyword(s):  
Gold Electrodes ◽  
Organic Layers

Multi-film roll transferring (MRT) process using highly conductive and solution-processed silver solution for fully solution-processed polymer solar cells

2014 ◽  
Vol 7 (8) ◽  
pp. 2764-2770 ◽  
Author(s):  
Hongseok Youn ◽  
Taehwa Lee ◽  
L. Jay Guo
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Solution Processed ◽  
Organic Layers ◽  
Ag Electrode ◽  
Silver Solution

A multi-layer roll transferring (MRT) approach is reported, in which a highly conductive solution processed Ag electrode is prepared separately from the rest of the organic layers, and the fully solution-processed device is completed by a final roll-transferring process.

Longevity of organic layers of vertical flow ponds for sulfate reduction in treating mine drainages in South Korea

2011 ◽  
Vol 34 (S1) ◽  
pp. 115-121 ◽  
Author(s):  
Young-Wook Cheong ◽  
Won Hur ◽  
Gil-Jae Yim ◽  
Sang-Woo Ji ◽  
Jae-E Yang ◽  
...  
Keyword(s):  
South Korea ◽  
Sulfate Reduction ◽  
Vertical Flow ◽  
Organic Layers

In Situ Analysis of the Growth and Dielectric Properties of Organic Self-Assembled Monolayers: A Way To Tailor Organic Layers for Electronic Applications

2016 ◽  
Vol 8 (25) ◽  
pp. 16451-16456 ◽  
Author(s):  
Aleksandr Markov ◽  
Kyrylo Greben ◽  
Dirk Mayer ◽  
Andreas Offenhäusser ◽  
Roger Wördenweber
Keyword(s):  
Dielectric Properties ◽  
In Situ Analysis ◽  
Self Assembled Monolayers ◽  
Organic Layers ◽  
Assembled Monolayers ◽  
Self Assembled

Effect of forest harvesting and slash piling on microbial biomass and respiration in Newfoundland boreal forests

2007 ◽  
Vol 87 (4) ◽  
pp. 455-458 ◽  
Author(s):  
Martin T Moroni ◽  
Paul Q Carter ◽  
Dean W Strickland ◽  
Franz Makeschin ◽  
Don-Roger Parkinson ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Key Words ◽  
Boreal Forests ◽  
Fungal Biomass ◽  
Forest Harvesting ◽  
Organic Layer ◽  
Total Microbial Biomass ◽  
Organic Layers ◽  
Respiration Rates ◽  
Fumigation Extraction

Clearcutting Newfoundland boreal forests significantly reduced organic layer fungal and total microbial biomass in clearcut areas with and without slash cover, compared with forested plots. However, aerobically incubated respiration rates were highest in organic layers from clearcut areas under slash, intermediate under forests, and lowest from clearcut areas without slash. Key words: Carbon, ergosterol, fumigation–extraction, fungal biomass, harvest slash, nitrogen

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