scholarly journals In-Situ Energy Dispersive X-ray Reflectivity Applied to Polyoxometalate Films: An Approach to Morphology and Interface Stability Issues in Organic Photovoltaics

Symmetry ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1240
Author(s):  
Amanda Generosi ◽  
Marco Guaragno ◽  
Qirong Zhu ◽  
Anna Proust ◽  
Nicholas T. Barrett ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Low Cost ◽  
Energy Dispersive ◽  
Close Monitoring ◽  
X Ray ◽  
Hole Transporting ◽  
Physical And Chemical ◽  
Energy Conversion Devices

Organic solar cells, characterized by a symmetrical regular layered structure, are very promising systems for developing green, low cost, and flexible solar energy conversion devices. Despite the efficiencies being appealing (over 17%), the technological transfer is still limited by the low durability. Several processes, in bulk and at interface, are responsible. The quick downgrading of the performance is due to a combination of physical and chemical degradations. These phenomena induce instability and a drop of performance in working conditions. Close monitoring of these processes is mandatory to understand the degradation pathways upon device operation. Here, an unconventional approach based on Energy Dispersive X-ray Reflectivity (ED-XRR) performed in-situ is used to address the role of Wells–Dawson polyoxometalate (K6-P2W18O62, hereafter K6-P2W18) as hole transporting layer in organic photovoltaics. The results demonstrate that K6-P2W18 thin films, showing ideal bulk and interface properties and superior optical/morphological stability upon prolonged illumination, are attractive candidates for the interface of durable OPV devices.

In situ energy dispersive x-ray reflectometry measurements on organic solar cells upon working

2005 ◽  
Vol 87 (19) ◽  
pp. 194110 ◽  
Author(s):  
B. Paci ◽  
A. Generosi ◽  
V. Rossi Albertini ◽  
P. Perfetti ◽  
R. de Bettignies ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Energy Dispersive ◽  
X Ray

In situ strain profiling of elastoplastic bending in Ti–6Al–4V alloy by synchrotron energy dispersive x-ray diffraction

2009 ◽  
Vol 105 (9) ◽  
pp. 093505 ◽  
Author(s):  
M. Croft ◽  
V. Shukla ◽  
E. K. Akdoğan ◽  
N. Jisrawi ◽  
Z. Zhong ◽  
...  
Keyword(s):  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Elastoplastic Bending

Nanocomposite cellulose fabrics with in situ generated silver nanoparticles by bioreduction method

2020 ◽  
pp. 152808372092473 ◽  
Author(s):  
Suchart Siengchin ◽  
Pawinee Boonyasopon ◽  
Vajja Sadanand ◽  
Anumakonda Varada Rajulu
Keyword(s):  
Silver Nanoparticles ◽  
Size Range ◽  
Low Cost ◽  
Aqueous Dispersion ◽  
X Ray Diffraction ◽  
X Ray ◽  
Gram Positive Bacteria ◽  
Bed Materials ◽  
Cellulose Fabrics

In the present work, nanocomposite cellulose fabrics with in situ generated silver nanoparticles were prepared by bioreduction method employing aqueous dispersion of low-cost natural turmeric powder as a reducing agent and different concentrated aqueous AgNO3 as source solutions. The prepared nanocomposite cellulose fabrics were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and antibacterial tests. The nanocomposite cellulose fabrics had roughly spherical silver nanoparticles in the size range of 41–130 nm with an overall average of 78 nm. The X-ray analysis indicated the generation of both silver nanoparticles and Ag2O nanoparticles in the nanocomposite cellulose fabrics. The nanocomposite cellulose fabrics retained the generated AgNPs even after repeated detergent washings. The prepared nanocomposite cellulose fabrics exhibited excellent antibacterial activity against both the Gram-negative and Gram-positive bacteria and hence can be considered as antibacterial hospital-bed materials, apparels, etc.

In situ time resolved studies of hydride and deuteride formation in Pd/C electrodes via energy dispersive X-ray absorption spectroscopy

2005 ◽  
Vol 7 (2) ◽  
pp. 366-372 ◽  
Author(s):  
A. Rose ◽  
O. South ◽  
I. Harvey ◽  
S. Diaz-Moreno ◽  
J. R. Owen ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Energy Dispersive ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

In Situ X-ray Absorption Spectroscopy/Energy-Dispersive X-ray Diffraction Studies on the Hydrothermal Formation of Bi2W1-xMoxO6 Nanomaterials

2012 ◽  
Vol 2012 (5) ◽  
pp. 783-789 ◽  
Author(s):  
Ying Zhou ◽  
Elena Antonova ◽  
Yuanhua Lin ◽  
Jan-Dierk Grunwaldt ◽  
Wolfgang Bensch ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Absorption

In situ X-ray energy dispersive microanalysis of polyphosphate bodies in Aureobasidium pullulans

1979 ◽  
Vol 69 (2) ◽  
pp. 232-238 ◽  
Author(s):  
Barbara B. Doonan ◽  
Richard E. Crang ◽  
Thomas E. Jensen ◽  
Michael Baxter
Keyword(s):  
Aureobasidium Pullulans ◽  
Energy Dispersive ◽  
X Ray ◽  
Energy Dispersive Microanalysis ◽  
Polyphosphate Bodies
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