Optical properties of porous silicon/poly(p phenylene vinylene) devices
β Scribed by Thien-Phap Nguyen; Philippe Le Rendu; Kok Wai Cheah
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 74 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1386-9477
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## Abstract Three alternating conjugated copolymers of cyanosubstituted poly(__p__βphenylene vinylene) (CNβPPV) with phenylene ethynylene and thienylene vinylene moieties, **P1, P2,** and **P3,** were synthesized via crossβcoupling polycondensation with Pd(PPh~3~)~2~Cl~2~ as a catalyst. Their struc
We investigate the quasi-particle conformational defects (excitons, polarons and bipolarons) in phenylene vinylene oligomers (PVOs) consisting of up to 12 repeat units. The conformations are determined by minimisation of the total Hartree-Fock energy calculated at 3-21G level. The Hartree-Fock calcu