Effect of the morphology on the optical and electrical properties of polycarbonate film doped with aniline derivatives monomers

Stanculescu, Florin; Stănculescu, Anca; Gîrtan, Mihaela; Socol, Marcela; Rasoga, Oana

doi:10.1016/j.synthmet.2011.09.012

Cited by 10 publications

(17 citation statements)

References 23 publications

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“…The A3 film shows a small peak situated at 13 ο corresponding to cyano aniline and indicating a certain small degree of order (crystallisation) in the vacuum-evaporated film. The X-ray diffractograms have evidenced a preferential orientation of A5 monomer film which is partially preserved in composite polycarbonate/A5 film, compared to A3 and polycarbonate/A3 films showing a substantial disorder [47]. The SEM images presented in Figure 26 have evidence a continuous, compact organic layer deposited on glass, with large grain morphology for A5 and smaller grain morphology with lower packing density for A3 [47].…”

Section: Maleimidic Derivatives Monomers In Polycarbonate Matrix As Omentioning

confidence: 93%

“…Organic Semiconductors for Non-Linear Optical Applications http://dx.doi.org/10.5772/60926 prepared from solution by spin coating on glass substrate successively cleaned with acetone and distillate water, using a solution containing both components: polymer in concentration of 0.09 g cm -3 or 0.250 g cm -3 and monomer in concentration varying from 0.01 g cm -3 to 0.25 g cm -3 in dimethylformamide (DMF) [47].…”

Section: Maleimidic Derivatives Monomers In Polycarbonate Matrix As Omentioning

confidence: 99%

“…The solvent DMF has been selected considering the surface energy determined by contact angle measurements, the high solubility of both polycarbonate and mentioned monomers in DMF compared to DMSO and the volatility at room temperature. The experimental conditions for the preparation of films have been selected from macroscopic morphological consideration referring to the uniformity of the layer: t 1 = 6 s and v 1 = 1.13 krpm in the spreading step and t 2 = 10 s and v 2 = 2.7 krpm in the homogenisation step, for a weight ratio between monomer and polymer of 1/3 [47]. The effect of the matrix on the properties of monomer inclusions are evidenced comparing the properties of these films with those of the reference samples of monomers thin films prepared by vacuum evaporation.…”

Section: Maleimidic Derivatives Monomers In Polycarbonate Matrix As Omentioning

confidence: 99%

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Organic Semiconductors for Non-Linear Optical Applications

Stănculescu¹,

Stanculescu²

2015

Optoelectronics - Materials and Devices

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The organic molecules represent a promising research field because they show special properties which are determined by the conjugated system of π electrons and the groups substituted to the aromatic nucleus offering perspectives for a large area of applications, including the non-linear optics.We have investigated two types of molecular crystalline material prepared from aromatic derivatives, meta-dinitrobenzene (m-DNB) and benzil (Bz), and three types of organic thin films prepared from arylenevinylene (triphenylamine, carbazole) compounds, maleimidic derivatives and anilinic derivatives functionalised copolymers using different methods (matrix-assisted pulsed laser evaporation, vacuum evaporation, spin coating). The effect of the experimental conditions on the morphological and structural particularities of the films has been emphasised. New results are bought about the systems formed from an aromatic derivative (m-DNB and benzil) crystal and inorganic (organic) dopant studied from the point of view of the dopant incorporation considering the stability of the growth interface and its effect on the optical band gap and optical non-linear (ONL) properties of the m-DNB and Bz crystals. The relationship between the morphology and structural order of the maleimidic derivatives monomers in polycarbonate matrix composite layer and the ONL properties is discussed. We analysed the correlation between the molecular structure of organic compound, particularities of the macroscopic order (influenced by the crystal growth and thin-film deposition methods) and optical non-linear (second harmonic generation, two-photon fluorescence) properties.The aromatic derivatives such as meta-dinitrobenzene (m-DNB) and benzil (Bz) are organic compounds of interest in preparing bulk crystal materials showing large transparency domain,

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Section: Maleimidic Derivatives Monomers In Polycarbonate Matrix As Omentioning

confidence: 93%

Section: Maleimidic Derivatives Monomers In Polycarbonate Matrix As Omentioning

confidence: 99%

Section: Maleimidic Derivatives Monomers In Polycarbonate Matrix As Omentioning

confidence: 99%

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Organic Semiconductors for Non-Linear Optical Applications

Stănculescu¹,

Stanculescu²

2015

Optoelectronics - Materials and Devices

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“…In addition, C 60 shows a significant solubility in chloroform, which is determinant for the fullerene cluster size and morphology of the deposited film. Preliminary studies have already revealed the effect of morphology on the properties of the polymer:monomer mixed layers [18]. Recently, it has also been emphasized that the film's morphology affects the performances of the solar cells [19].…”

Section: Methodsmentioning

confidence: 99%

MAPLE prepared heterostructures with arylene based polymer active layer for photovoltaic applications

Stanculescu

Rasoga

Catargiu³

et al. 2015

Applied Surface Science

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“…Polyaniline (PANI) and its derivatives such as o-anisidine have attracted considerable attention due to their use in optoelectronic industries [12][13][14]. Polyaniline (PANI) and its derivatives have been investigated by a number of researchers to study their optical and electrochromic properties [6,10,15,16].…”

Section: Introductionmentioning

confidence: 99%