Alkyl-substituted bis(4-((9H-fluoren-9-ylidene)methyl)phenyl)thiophenes: weakening of intermolecular interactions and additive-assisted crystallization

CrystEngComm ◽  
2021 ◽  
Vol 23 (14) ◽  
pp. 2654-2664
Author(s):  
Alina A. Sonina ◽  
Christina S. Becker ◽  
Anatoly D. Kuimov ◽  
Inna K. Shundrina ◽  
Vladislav Yu. Komarov ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Methyl Phenyl

Effect of alkyl substituents and an additive on crystallization and intermolecular interactions of bis(4-((9H-fluoren-9-ylidene)methyl)phenyl)thiophenes is revealed.

Degradation in a Methyl-phenyl Co-Polymeric Polysilane for LED Applications

2003 ◽  
Vol 769 ◽  
Author(s):  
Asha Sharma ◽  
Deepak ◽  
Monica Katiyar ◽  
Satyendra Kumar ◽  
V. Chandrasekhar ◽  
...  
Keyword(s):  
Thin Films ◽  
Molecular Weight ◽  
Light Source ◽  
Room Temperature ◽  
Light Exposure ◽  
Room Temperature Photoluminescence ◽  
Pl Spectrum ◽  
Pl Intensity ◽  
Methyl Phenyl

AbstractThe optical degradation of polysilane copolymer has been studied in spin cast thin films and solutions using light source of 325 nm wavelength. The room temperature photoluminescence (PL) spectrum of these films show a sharp emission at 368 nm when excited with a source of 325 nm. However, the PL intensity deteriorates with time upon light exposure. Further the causes of this degradation have been examined by characterizing the material for its transmission behaviour and changes occurring in molecular weight as analysed by GPC data.

Sign in / Sign up

Export Citation Format

Share Document