Lead-free halide double perovskite-polymer composites for flexible X-ray imaging

2018 ◽  
Vol 6 (44) ◽  
pp. 11961-11967 ◽  
Author(s):  
Haoran Li ◽  
Xin Shan ◽  
Jennifer N. Neu ◽  
Thomas Geske ◽  
Melissa Davis ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Polymer Matrix ◽  
Composite Films ◽  
Double Perovskite ◽  
Lead Free ◽  
X Ray ◽  
X Ray Imaging

X-ray detectors are demonstrated using composite films of lead-free Cs2AgBiBr6 halide double perovskite embedded in a polymer matrix as the X-ray photoconductors.

Kaolinite dispersion in cassava starch-based composite films: a photonic microscopy and X-ray tomography study

2018 ◽  
Vol 38 (7) ◽  
pp. 641-647
Author(s):  
Jean Aimé Mbey ◽  
Fabien Thomas ◽  
Sandrine Hoppe
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Dimethyl Sulfoxide ◽  
Polymer Matrix ◽  
Composite Films ◽  
Cassava Starch ◽  
X Ray ◽  
Clay Dispersion ◽  
Combined Use ◽  
Scanning Electron

Abstract In the present study, a combined use of photonic microscopy, scanning electron microscopy and 3D X-ray tomography is carried out in order to analyze the dispersion and the distribution of raw and dimethyl sulfoxide (DMSO)-intercalated kaolinite used as filler in cassava starch-based films. It is shown that the association of these techniques allows a valuable analysis of clay dispersion in polymer-clay composite films. In the case of kaolinite-starch composite films on which this study is focused, it is obvious that previous intercalation of kaolinite with DMSO is an efficient way to improve dispersion and distribution of kaolinite in a starch polymer matrix.

Soft X-ray Imaging of Polymers and Polymer Composites

2012 ◽  
Vol 18 (S2) ◽  
pp. 1612-1613
Author(s):  
H. Ade
Keyword(s):  
Polymer Composites ◽  
X Ray ◽  
X Ray Imaging

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

Preparation of Lead-free Two-Dimensional-Layered (C8H17NH3)2SnBr4 Perovskite Scintillators and Their Application in X-ray Imaging

2020 ◽  
Vol 12 (17) ◽  
pp. 19797-19804 ◽  
Author(s):  
Jitao Cao ◽  
Zhao Guo ◽  
Shuang Zhu ◽  
Yanyan Fu ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Lead Free ◽  
Two Dimensional ◽  
X Ray ◽  
X Ray Imaging

Large Lead‐Free Perovskite Single Crystal for High‐Performance Coplanar X‐Ray Imaging Applications

2020 ◽  
Vol 8 (19) ◽  
pp. 2000814 ◽  
Author(s):  
Yucheng Liu ◽  
Yunxia Zhang ◽  
Zhou Yang ◽  
Jian Cui ◽  
Haodi Wu ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
Lead Free ◽  
X Ray ◽  
X Ray Imaging

Real Time Synchrotron X-Ray Imaging for Nucleation and Growth of Cu6Sn5 in Sn-7Cu-0.05Ni High Temperature Lead-Free Solder Alloys

2012 ◽  
Vol 626 ◽  
pp. 200-204 ◽  
Author(s):  
Kazuhiro Nogita ◽  
Hideyuki Yasuda ◽  
Stuart D. McDonald ◽  
Kentaro Uesugi
Keyword(s):  
High Temperature ◽  
Real Time ◽  
Lead Free ◽  
Lead Free Solder ◽  
Solder Alloys ◽  
X Ray ◽  
X Ray Imaging ◽  
Solder Microstructure ◽  
Free Solder ◽  
Solidification Pathway

This paper demonstrates how recent progress for real-time solidification observation at SPring-8 synchrotron has contributed to the development of Sn-7wt%Cu-0.05wt%Ni high temperature lead-free solder alloys. Lead-free solder alloys in the composition range Sn-0.7 to 7.6wt%Cu that consist of primary Cu6Sn5in a eutectic Sn-Cu6Sn5matrix have been proposed as solders for application at temperatures up to 400°C for the assembly high current semiconductors. It is shown that trace levels of Al have a marked effect on the solder microstructure and refine the size of the primary Cu6Sn5. The solidification pathway that leads to the refinement was observed in real-time using X-ray synchrotron observations.

A Lead-Free I-Based Hybrid Double Perovskite (I-C4H8NH3)4AgBiI8 for X-ray Detection

2021 ◽  
Author(s):  
Zhijin Xu ◽  
Huajie Wu ◽  
Dong Li ◽  
Wentao Wu ◽  
Lina Li ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Scientific Research ◽  
Double Perovskite ◽  
Lead Free ◽  
X Ray ◽  
Security Inspection ◽  
Green Lead

X-ray detection is indispensable in medical imaging, security inspection, and scientific research. Green lead-free perovskite has a great prospect in the field of X-ray detection. Herein, a new layered hybrid...

Structure and Electrical Properties of Conjugated Polymer Composites

1995 ◽  
Vol 411 ◽  
Author(s):  
K. C. Gong ◽  
W. S. Ma
Keyword(s):  
Polymer Composites ◽  
Conjugated Polymer ◽  
Supporting Electrolyte ◽  
Energy Dispersive Spectrometer ◽  
Composite Films ◽  
Attenuated Total Reflection ◽  
Conducting Composite ◽  
X Ray ◽  
Electrical Conductivities ◽  
Two Sides

ABSTRACTThe microstructure and electrical property relationships in conjugated polymer composites( polyaniline (PAn) or polypyrrole(PPy)/thiokol rubber (TR)) have been characterized by 4-probe method , scanning electron microscope (SEM), x-ray energy dispersive spectrometer (EDS) and attenuated total reflection(ATR). The electrical conductivities of the two surfaces of the film, with film thicknesses from 0.01mm to 0.30mm, prepared by electropolymerization , were measured . The differences were related to the thickness of the film. As for a similar PPy/TR film, when trichloroacetic acid was regarded as the supporting electrolyte the film thickness was 0.05mm and the electrical conductivity of the surface on the solution side was reduced by about 21.3%. The studies of SEM, x-ray EDS , ATR for the chemical composition and microstructure of the two surfaces of the composite films showed that a reaction layer was present in the films. Moreover , the conductivity changes between two sides of a fold mark in the conducting composite film is discussed.

scholarly journals Inch-Size 0D-Structured Lead-Free Perovskite Single Crystals for Highly Sensitive Stable X-Ray Imaging

Matter ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 180-196 ◽  
Author(s):  
Yucheng Liu ◽  
Zhuo Xu ◽  
Zhou Yang ◽  
Yunxia Zhang ◽  
Jian Cui ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lead Free ◽  
X Ray ◽  
X Ray Imaging ◽  
Highly Sensitive
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