A5102116714- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Titanium Alloys Microstructure and Properties
- Metallurgy and Material Forming
- Graphene research and applications
- Carbon Nanotubes in Composites
- Perovskite Materials and Applications
- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Advanced Memory and Neural Computing
- Organic Light-Emitting Diodes Research
- Crystallography and molecular interactions
- Flame retardant materials and properties
- Nanomaterials for catalytic reactions
- Advancements in Battery Materials
- 2D Materials and Applications
- Thin-Film Transistor Technologies
- Polymer Foaming and Composites
- Transition Metal Oxide Nanomaterials
- Microstructure and mechanical properties
- Polymer Surface Interaction Studies
- Fiber-reinforced polymer composites
- Membrane-based Ion Separation Techniques
The University of Queensland
2025
Southwest Jiaotong University
2024
Nanjing Forestry University
2024
Nanjing University
2024
Chengdu Third People's Hospital
2024
Xiangtan University
2021-2023
Yangzhou Polytechnic Institute
2016-2021
Chengdu Organic Chemicals (China)
2017-2020
Chinese Academy of Sciences
2017-2020
Northwest Institute For Non-Ferrous Metal Research
2009-2020
We have prepared, characterized and surveyed device performance for a series of electron deficient pentacenes use as acceptors in polymer bulk heterojunction solar cells, using P3HT the donor material. All materials reported here behaved acceptors, variations position nature electron-withdrawing group on pentacene core allowed tuning open-circuit voltage. Photocurrent was strongly correlated with crystal packing motif; 2D π-stacking interactions performed poorly compared exhibiting 1D...
A structure-device performance correlation in bulk heterojunction solar cells for new indandione-derived small molecule electron acceptors, FEHIDT and F8IDT, is presented. Devices based on the former exhibit higher power conversion efficiency (2.4%) open circuit voltage, a finding consistent with reduced intermolecular interactions.
6,13-Bis(triisopropylsilylethynyl) (TIPS)-pentacene has proven to be a promising soluble p-type material for organic thin film transistors as well photovoltaics. In this work, we show that adding electron-withdrawing nitrile functional groups TIPS-pentacene turns it into an n-type material, which can used acceptor solar cells. Several new cyanopentacenes with different trialkylsilyl have been synthesized. The HOMO–LUMO energy levels tuned by varying the number of groups, while control...
We report a novel synthesis to ultra high purity 7,14-bis((trimethylsilyl)ethynyl)dibenzo[b,def]-chrysene (TMS-DBC) and the use of this material in growth single crystals by solution vapor deposition techniques. observe that substrate temperature has dramatic impact on crystal growth, producing two distinct polymorphs TMS-DBC; low (LT) fine red needles (HT) large yellow platelets. Single X-ray crystallography confirms packing structures where LT form 1D slipped-stack structure, while HT...
We show that the method we have developed for measuring singlet exciton diffusion length in blends with [6,6]-phenyl-C(61)-butyric acid methyl ester (PCBM) can be applied not only to polymeric materials, but also small molecule organic semiconductors. Small molecules a large potential molecular re-organization upon thermal annealing. Here is decreased annealing from 9 3 nm thin film of diketopyrrolopyrrole derivative. Such variation attributed delocalization effects crystalline domains are...
Ag@CeO2 core–shell nanospheres were synthesized by a facile one-step solvothermal route from Ce(NO3)3·6H2O, AgNO3, poly(N-vinylpyrrolidone) (PVP), and ethanol. The structure, composition, BET specific surface area optical properties of characterized X-ray diffraction, photoelectron spectroscopy, field emission scanning electron microscopy, high resolution transmission N2 adsorption–desorption isotherm analysis, UV-vis diffuse reflectance spectroscopy. Field scanning, microscopy spectroscopy...
Polymorphism is pervasive in molecular solids. While computational predictions of the polymorphic landscape have improved significantly, identifying which polymorphs are preferentially accessed and experimentally stable remains a challenge. We report framework that correlates short intermolecular contacts with stability. The presence between neighboring molecules prevents structural rearrangement stabilizes packing arrangement, even when stabilized polymorph not enthalpically favored. In...
Poly (ethylene oxide) (PEO) composite solid-state electrolytes have been considered as promising candidate for all-solid-state lithium batteries with high safety and excellent mechanical properties. However, the ionic conductivity of...
ABSTRACT This study investigated the effect of subcritical heat treatment and cold work on hydrogen embrittlement (HE) susceptibility X65 D pipeline steel, representative Dampier‐Bunbury Natural Gas Pipeline (DBNGP). Specimens were subjected to sub‐critical annealing at 200°C, 400°C, or 600°C for 2 h drawn 5% reduction in area. Linearly increasing stress tests (LISTs) indicated reduced strength increased ductility, while working decreased ductility. Hydrogen charging ductility all specimens....
The intramolecular electronic structures and intermolecular interactions of 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS pentacene), 6,14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa-dicyclopenta[b,m]-pentacene (TP-5 2,2,10,10-tetraethyl-6,14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa-dicyclopenta[b,m]pentacene (EtTP-5 pentacene) have been investigated by the combination gas-phase solid-phase photoelectron spectroscopy measurements. Further insight has provided electrochemical...
This study delves into the intricate relationship between economic growth and its ecological repercussions, employing a comprehensive assessment of footprint across 131 nations. The time period considered for research spans from 2009 to 2019. Utilizing CS-ARDL methodology, results indicate correlation reducing bolstering private sector domestic credit. Additionally, diminishing credit banks augmenting within financial has been identified. In conjunction with other indicators advancement,...
The impact of molecular packing and alignment 7,14-bis((triethylsilyl)ethynyl)dibenzo[b,def]chrysene (TES-DBC) 7,14-bis((triisopropylsilyl)ethynyl)dibenzo[b,def]chrysene (TIPS-DBC) on OFET performance was investigated. bulk solid state these angular polycyclic aromatic hydrocarbons (PAHs) analyzed via single crystal X-ray analysis, their stacking arrangements HMDS modified SiO2 substrate were studied using near edge absorption fine structure spectroscopy (NEXAFS) at the carbon K-edge. Our...
The hot workability and microstructural evolution of a highly β stabilised Ti–25V–15Cr–0·3Si alloy have been studied using constant strain rate isothermal compression tests in the temperature range 900–1100°C 0·01–10 s −1 . It was found that all flow stress curves were characterised by sharp initial discontinuous yielding followed either steady state or continuous softening with strain. This showed dynamic recovery at temperatures less than 950°C but recrystallisation higher 1000°C. At rates...
A series of tetrahedrally capped acetylene dibenzochrysene derivatives were modelled and then synthesised resulting in compounds with very similar electronic properties, but differing physical properties depending on the capping group. By varying size tetrahedral group we have undertaken a study relationship between molecular structure charge mobility organic transistors. Thin film characterisation techniques (near-edge X-ray absorption fine spectroscopy, scanning electron microscopy, atomic...
Modification of the barbituric acid acceptor group results in structural and optoelectronic changes that provide electron mobilities nearing 0.3 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup>.
Based on the industrialized graphene (GN) product, a series of intrinsic flame‐retardant urea‐formaldehyde/graphene‐silane coupling agent (UF/GN‐SA) nanocomposite foams were fabricated via in situ polymerization and water‐based foaming process. It was found that at low GN content, sheets dispersed homogeneously foams. Compared with neat UF foam, composite foam exhibited circular cells smaller cell size, narrower size distribution, thicker walls, lower porosity, less water absorption....