Impedance spectroscopic investigations of ITO modified by new Azo-calix[4]arene immobilised into electroconducting polymer (MEHPPV)

Rouis, A.; Mlika, R.; Davenas, J.; Ouada, H. Ben; Bonnamour, Isabelle; Jaffrezic, N.

doi:10.1016/j.jelechem.2006.10.032

Cited by 26 publications

(13 citation statements)

References 41 publications

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“…44 Many reports deal with calixarene copper complexes. [45][46][47][48][49][50] In investigation of calixarenes 1-3 bearing β-ketoimine groups, it was shown that these functions enable their complexation with transition metal ions. Calixarenes 1-3 exist in a cone conformation in solution; with Cu 2+ , Ag + and Hg 2+ ions they yield the 1:1 complexes.…”

Section: Calixarene Complexes With Copper Ionsmentioning

confidence: 99%

Calixarene complexes with soft metal ions

Śliwa¹,

Deska²

2008

Arkivoc

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Section: Calixarene Complexes With Copper Ionsmentioning

confidence: 99%

Calixarene complexes with soft metal ions

Śliwa¹,

Deska²

2008

Arkivoc

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“…Calix [4]arenes are the most widely studied compounds in the calixarene family [4][5][6][7][8][9][10][11][12][13][14][15][16], although applications of calix [8]arenes [17,18], calix [6]arenes [18] or calix [3]arenes [19] have also been reported. The Langmuir technique has been used to study the response of calixarene derivative monolayers at metal ions present in the subphase [20][21][22][23][24][25][26][27], to amino acids [28] or for the molecular recognition of nucleosides [29].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Langmuir and Langmuir–Blodgett films of a calix[7]arene ethyl ester

Torrent‐Burgués

Vocanson

Pérez-González

et al. 2012

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Calixarenes are promising compounds to be used as ionophores and for molecular recognition. Their ability to form Langmuir and Langmuir-Blodgett (LB) films is of great interest in order to obtain small sensor devices which incorporate an active nanometric film. The p-tert-butylcalix [7]arene ethyl ester compound has been synthesised and its ability to form Langmuir and LB films has been shown. This macrocycle forms monolayers but it tends to form multilayers at higher compressions, as corroborated by AFM. BAM images show a uniform layer till the multilayer process occurs and a good correspondence with the features of the surface pressure-area 2 isotherm. AFM images reveal that, in water subphase, films are quite homogeneous but the presence of small islands has also been observed. The presence of ions in the subphase, as sodium, potassium, rubidium, cesium, calcium, barium, cadmium and tin chloride salt solutions, leads to some changes in the surface pressure-area isotherms, but the more important changes are observed by AFM. More uniform films are observed for rubidium, cesium, cadmium and tin ions. A very different nanometric structure has been observed for tin ions. Some characteristics of the films, molecular area and height, are correlated with molecular modelling calculations.

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“…In the two last decades, organic nanomaterials have attracted great interest as semiconducting materials and have found applications as electroluminescent devices, field-effect transistors, chemical sensors and solar cells [1][2][3][4][5][6][7][8][9]. Organic materials have in particular been intensively studied for the development of photovoltaic systems at low cost.…”

Section: Introductionmentioning

confidence: 99%

Study of charge transport in P3HT:SiNW-based photovoltaic devices

Azizi¹,

Braik

Dridi

et al. 2012

Appl. Phys. A

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Hybrid devices based on silicon nanowires (SiNWs) dispersed in a conjugated polymer poly(3-hexylthiophene) P3HT thin films have been realized. The carrier transport mechanism in inorganic/organic hybrid nancocomposites consisting of SiNW dispersed in P3HT layer was investigated by using I -V characteristics and impedance spectroscopy measurements. The conduction mechanism in these hybrid nanocomposites has been identified to be thermionic emission at the interfaces. The electrical parameters of the structure have been investigated by modelization of the I -V characteristics using an electrical equivalent circuit and have been extracted for the different SiNW volume ratios. The barrier height, the series resistance and the shunt resistance values of the diodes have been calculated as about 0.9 eV, several k and several M , respectively. The diode behaves as non-ideal one because of the series resistance and the Donor/Acceptor interface layer. The impedance spectroscopy study, in the frequency range 100 Hz-100 kHz, shows a typical behavior of disordered materials and indicative of a hopping transport in the investigated temperature

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Impedance spectroscopic investigations of ITO modified by new Azo-calix[4]arene immobilised into electroconducting polymer (MEHPPV)

Cited by 26 publications

References 41 publications

Calixarene complexes with soft metal ions

Calixarene complexes with soft metal ions

Synthesis, Langmuir and Langmuir–Blodgett films of a calix[7]arene ethyl ester

Study of charge transport in P3HT:SiNW-based photovoltaic devices

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