Structural properties of intrinsic and doped nc‐Si:H films prepared by RFMS: Study as function of deposition time and substrate temperature

Belfedal, A.; Bouizem, Y.; Benlakehal, D.; Baghdad, R.; Sib, J.D.; Kebab, A.; Chahed, L.; Zellama, K.

doi:10.1002/pssc.200982903

Cited by 3 publications

(1 citation statement)

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“…This means that the electrons are smeared out into broader bands and that their resonance frequencies are lower than for ionically bonded materials. Usually these materials can be described by a single energy gap and single broad absorption band above the energy gap (example Silicon see work [43]). From these simulations by Lorentz model, we can determined the average gap EM centered at 260 nm equivalent to energy EM=4.68 eV.…”

Section: Optical Resultsmentioning

confidence: 99%

Poly [(pyrrole-2, 5-diyl) co(4-Nitro benzylidene)]: A new synthetic approach and electronic properties

Gherras

Hachemaoui

Yahiaoui

et al. 2012

IOP Conf. Ser.: Mater. Sci. Eng.

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A new poly (heteroary1ene methylene) containing one to four -pyrrole rings alternating with an sp3-carbon atom in the main chain were synthesized and characterized. The synthesized poly [(pyrrole-2, 5-diyl)-co-(4-nitrobenzylidene)] was found to be highly dehydrogenated, thus resulting in black materials with conjugated segments larger than a single pyrrole ring. The conjugated polymers containing alternating aromatic and quinoid heteroarylene moieties in the main chain were prepared by polycondensation of 4nitrobenzaldehyde and pyrrole catalysed by Maghnite-H+. The new polymer is useful precursors to small-bandgap polymers based on poly (heteroary1ene methines) and is also useful model system for the investigation of the effects of -conjugation length on the electronic and optical properties of conjugated polymers.

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Section: Optical Resultsmentioning

confidence: 99%