The Association of Water on Molecular Layers

1978 ◽  
Vol 82 (9) ◽  
pp. 889-889
Author(s):  
H. Steinbach ◽  
ChR. Sucker
Keyword(s):  
Molecular Layers

scholarly journals Study of the Molecule Adsorption Process during the Molecular Doping

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1899
Author(s):  
Mattia Pizzone ◽  
Maria Grazia Grimaldi ◽  
Antonino La La Magna ◽  
Neda Rahmani ◽  
Silvia Scalese ◽  
...  
Keyword(s):  
Density Functional ◽  
Electrical Characterization ◽  
Molecular Surface ◽  
Doping Profile ◽  
Electrical Measurements ◽  
Self Assembled Monolayer ◽  
Depth Study ◽  
Molecular Doping ◽  
Dopant Atoms ◽  
Molecular Layers

Molecular Doping (MD) involves the deposition of molecules, containing the dopant atoms and dissolved in liquid solutions, over the surface of a semiconductor before the drive-in step. The control on the characteristics of the final doped samples resides on the in-depth study of the molecule behaviour once deposited. It is already known that the molecules form a self-assembled monolayer over the surface of the sample, but little is known about the role and behaviour of possible multiple layers that could be deposited on it after extended deposition times. In this work, we investigate the molecular surface coverage over time of diethyl-propyl phosphonate on silicon, by employing high-resolution morphological and electrical characterization, and examine the effects of the post-deposition surface treatments on it. We present these data together with density functional theory simulations of the molecules–substrate system and electrical measurements of the doped samples. The results allow us to recognise a difference in the bonding types involved in the formation of the molecular layers and how these influence the final doping profile of the samples. This will improve the control on the electrical properties of MD-based devices, allowing for a finer tuning of their performance.

scholarly journals Optimised power harvesting by controlling the pressure applied to molecular junctions

2021 ◽  
Vol 12 (14) ◽  
pp. 5230-5235
Author(s):  
Xintai Wang ◽  
Ali Ismael ◽  
Ahmad Almutlg ◽  
Majed Alshammari ◽  
Alaa Al-Jobory ◽  
...  
Keyword(s):  
Molecular Junctions ◽  
Thermoelectric Devices ◽  
Power Harvesting ◽  
Self Assembled ◽  
Molecular Layers

A major potential advantage of creating thermoelectric devices using self-assembled molecular layers is their mechanical flexibility.

High-Efficiency Low-Temperature ZnO Based Perovskite Solar Cells Based on Highly Polar, Nonwetting Self-Assembled Molecular Layers

2017 ◽  
Vol 8 (5) ◽  
pp. 1701683 ◽  
Author(s):  
Randi Azmi ◽  
Wisnu Tantyo Hadmojo ◽  
Septy Sinaga ◽  
Chang-Lyoul Lee ◽  
Sung Cheol Yoon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Self Assembled ◽  
Molecular Layers

scholarly journals Templated quasicrystalline ordering of single elements and molecules

2014 ◽  
Vol 70 (a1) ◽  
pp. C81-C81
Author(s):  
H. R. Sharma ◽  
J. A. Smerdon ◽  
K. Nozawa ◽  
K. M. Young ◽  
T. P. Yadav ◽  
...  
Keyword(s):  
Substrate Surface ◽  
Chemical Properties ◽  
Scanning Tunneling ◽  
Three Dimension ◽  
Tunneling Microscopy ◽  
Quantum Size ◽  
Adsorption Energies ◽  
Molecular Layers ◽  
Physical And Chemical ◽  
The Impact

We have used quasicrystals as templates for the exploration of new epitaxial phenomena. Several interesting results have been observed in the growth on surfaces of the common Al-based quasicrystals [1]. These include pseudomorphic monolayers, quasiperiodically modulated multilayer structures, and fivefold-twinned islands with magic heights influenced by quantum size effects [1]. Here we present our recent works on the growth of various elements and molecules on a new substrate, icosahedral (i) Ag-In-Yb quasicrystal, which have resulted in various epitaxial phenomena not observed previously. The growth of Pb on the five-fold surface of i-Ag-In-Yb yields a film which possesses quasicrystalline ordering in three-dimension [2]. Using scanning tunneling microscopy (STM) and DFT calculations of adsorption energies, we find that lead atoms occupy the positions of atoms in the rhombic triacontahedral (RTH) cluster, the building block of the substrate, and thus grow in layers with different heights and adsorption energies. The adlayer–adlayer interaction is crucial for stabilizing the epitaxial quasicrystalline structure. We will also present the first example of quasicrystalline molecular layers. Pentacene adsorbs at tenfold-symmetric sites of Yb atoms around surface-bisected RTH clusters, yielding quasicrystalline order [3]. Similarly, C-60 growth on the five-fold surface of i-Al-Cu-Fe at elevated temperature produces quasicrystalline layer, where the growth is mediated by Fe atoms on the substrate surface [3]. The finding of quasicrystalline thin films of single elements and molecules opens an avenue for further investigation of the impact of the aperiodic atomic order over periodic order on the physical and chemical properties of materials.

Highly Stable Redox-Active Molecular Layers by Covalent Grafting to Conductive Diamond

2011 ◽  
Vol 133 (15) ◽  
pp. 5692-5694 ◽  
Author(s):  
Rose E. Ruther ◽  
Matthew L. Rigsby ◽  
James B. Gerken ◽  
Stephanie R. Hogendoorn ◽  
Elizabeth C. Landis ◽  
...  
Keyword(s):  
Redox Active ◽  
Covalent Grafting ◽  
Molecular Layers

Preparation of self-ordered molecular layers by pulse injection

2006 ◽  
Vol 600 (11) ◽  
pp. L143-L147 ◽  
Author(s):  
Leonhard Grill ◽  
Ingeborg Stass ◽  
Karl-Heinz Rieder ◽  
Francesca Moresco
Keyword(s):  
Pulse Injection ◽  
Molecular Layers

Wireless Electrografting of Molecular Layers for Janus Particle Synthesis

2012 ◽  
Vol 19 (5) ◽  
pp. 1577-1580 ◽  
Author(s):  
Chawanwit Kumsapaya ◽  
Marie-France Bakaï ◽  
Gabriel Loget ◽  
Bertrand Goudeau ◽  
Chompunuch Warakulwit ◽  
...  
Keyword(s):  
Janus Particle ◽  
Particle Synthesis ◽  
Molecular Layers

Highly Stable Molecular Layers on Nanocrystalline Anatase TiO2through Photochemical Grafting

Langmuir ◽  
2009 ◽  
Vol 25 (18) ◽  
pp. 10676-10684 ◽  
Author(s):  
Ryan A. Franking ◽  
Elizabeth C. Landis ◽  
Robert J. Hamers
Keyword(s):  
Photochemical Grafting ◽  
Molecular Layers
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