Chemical and photophysical properties of materials for OLEDs

Dechun, Zou

doi:10.1533/9780857098948.1.114

Cited by 10 publications

(8 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is highly likely that this is due to fast electron spin relaxation in this species, because Ru has a reasonably high spin–orbit coupling coefficient. 15 The unpaired electron in Ru( iii )(bpy) 2 bpz˙ is highly delocalized, and there are several resonance contributors that place the radical center adjacent to the metal center, one example of which is illustrated in Scheme 2 . With contributions from such resonance contributors, one would expect significant π and σ through-bond coupling, and therefore very efficient electron spin relaxation in Ru( iii )(bpy) 2 bpz˙.…”

Section: Resultsmentioning

confidence: 99%

Anomalous chemically induced electron spin polarization in proton-coupled electron transfer reactions: insight into radical pair dynamics

Brugh

Forbes

2020

Chem. Sci.

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Anomalous chemically induced electron spin polarization in proton-coupled electron transfer reactions: insight into radical pair dynamics

Brugh

Forbes

2020

Chem. Sci.

View full text Add to dashboard Cite

show abstract

“…Glass transition is inherent of amorphous polymer materials, and these occur between the glassy and high-elastic states. Below T g , the polymer is in a glass state, in which the molecular chain and the chain segment cannot move; above T g , the polymer structure is mobile, and large-scale molecular motion is possible [ 35 ]. The glass transition is not considered a first-order phase transition, but a kinetic phenomenon, or a second-order transition [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of a Biodegradable Polymer of Poly (Sodium Alginate/Ethyl Acrylate)

et al. 2021

View full text Add to dashboard Cite

The objective of the study was to obtain a new biodegradable graft polymer by performing two chemical processes: first, a transesterification reaction between carboxylic acid’s salt and ethyl acrylate’s ester, followed by polymerization of the vinyl group from the ethyl acrylate monomer via free radicals. The copolymer’s FTIR shows an absence of ethyl bands, while the characteristic band of pyranose is maintained, which confirms the monomer’s graft. TGA analysis shows that sodium alginate had three decomposition temperatures: 103 °C due to dehydration, 212 °C associated with the destruction of glycosidic bonds, and 426 °C due to conversion of alginate into Na2CO3. The copolymer presents four processes at different temperatures, i.e., evaporation of alcohol at 65 °C, decomposition of ungrafted alginate at 220 °C, copolymer decomposition at 298 °C, and degradation of fragments into carbonate at 423 °C. The evaluation of the action of fungal growth on the copolymer was higher than 50%, which means it is an excellent material to be biodegraded.

show abstract

“…Under its T g , the polymer is in the glass state. Molecular chains cannot move, but the atoms (or groups) that constitute the molecules vibrate in their equilibrium positions [37]. However, the movement of chain segments induces elastic property at T g .…”

Section: Encryption and Decryption Mechanism Towards High Securitymentioning

confidence: 99%

“…1c). In the high-temperature decoding, the PS layers become transparent after phase state transition [37,38], allowing the penetration of incident light and scattering light. The QAS layer of CdS can be designed with complex encryption patterns, and a decoded structural color can be easily captured because of the high refractive index of CdS microspheres [39,40].…”

Section: Introductionmentioning

confidence: 99%