Phthalocyanine Thin Films: Deposition and Structural Studies

Cook, Michael J.; Chambrier, Isabelle

doi:10.1016/b978-0-08-092391-8.50008-x

Cited by 42 publications

(26 citation statements)

References 475 publications

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“…This pattern is similar to XRD patterns of other MPc films deposited in the temperature range 20 -120 o C [17]. For most of MPcs the similar single diffraction peak was assigned to (100) lattice plane and the edge-on orientation of the MPc molecules was proposed [17]. On the basis of these facts, we hypothesized the same edge-on orientation of AuClPc molecules w.r.t.…”

Section: Atomic Force Microscopy and Xrd Studies Of Auclpc Filmssupporting

confidence: 84%

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Gold(III) phthalocyanine chloride: Optical and structural characterization of thin films

et al. 2015

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Section: Atomic Force Microscopy and Xrd Studies Of Auclpc Filmssupporting

confidence: 84%

“…gives rise to a red shifted Q-band [16,17]. A blue shift of the Q-band relative to the Q-band of the solution spectrum is observed in the case of AuClPc film deposited onto a quartz substrate at 100 o C ( Figure 2).…”

Section: (A) It Comprises Intense Q-band At 676mentioning

confidence: 91%

Gold(III) phthalocyanine chloride: Optical and structural characterization of thin films

et al. 2015

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“…Upon blending with C 60 , this absorption is blue-shifted to 838 nm. A red shift of the thin film absorption bands, relative to the solution spectra (for VONPc, the solution absorption band lies around 820 nm), is a common phenomenon in highly planar conjugated systems 18 and is indicative of a greater degree of intermolecular interaction in the film. 19 Therefore, it is reasonable that the blend film shows a less-pronounced red shift because the crystallinity would be reduced upon blending.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Factors Affecting the Stability and Performance of Ionic Liquid-Based Planar Transient Photodetectors

Dalgleish

Reissig

et al. 2015

Langmuir

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A novel planar architecture has been developed for the study of photodetectors utilizing the transient photocurrent response induced by a metal/insulator/semiconductor/metal (MISM) structured device, where the insulator is an ionic liquid (IL-MISM). Using vanadyl 2,3-naphthalocyanine, which absorbs in the communications-relevant near-infrared wavelength region (λ(max,film) ≈ 850 nm), in conjunction with C60 as a bulk heterojunction, the high capacitance of the formed electric double layers at the ionic liquid interfaces yields high charge separation efficiency within the semiconductor layer, and the minimal potential drop in the bulk ionic liquid allows the electrodes to be offset by distances of over 7 mm. Furthermore, the decrease in operational speed with increased electrode separation is beneficial for a clear modeling of the waveform of the photocurrent signal, free from the influence of measurement circuitry. Despite the use of a molecular semiconductor as the active layer in conjunction with a liquid insulating layer, devices with a stability of several days could be achieved, and the operational stability of such devices was shown to be dependent solely on the solubility of the active layer in the ionic liquid, even under atmospheric conditions. Furthermore, the greatly simplified device construction process, which does not rely on transparent electrode materials or direct electrode deposition, provides a highly reproducible platform for the study of the electronic processes within IL-MISM detectors that is largely free from architectural constraints.

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“…The phase composition, morphology and orientation of MPc molecules in thin films are of particular importance for their use in sensing devices because they determine both optical and electrical properties of the films [9,10]. It is well known that the choice of deposition conditions can significantly affect the growth process and the molecular organization of thin organic films [11][12][13]. So far, significant efforts have been made to develop growth methods and, ultimately, to control the structure (molecular orientation, polymorphism and morphology) of vanadyl phthalocyanine (VOPc) films.…”

Section: Introductionmentioning

confidence: 99%

Vanadyl Phthalocyanine Films and Their Hybrid Structures with Pd Nanoparticles: Structure and Sensing Properties

Klyamer

Sukhikh

Николаева

et al. 2020

Sensors

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In this work, thin films of vanadyl phthalocyanines (VOPc and VOPcF4) are studied as active layers for the detection of gaseous ammonia and hydrogen. The effect of F-substituents on the structural features of vanadyl phthalocyanine films and their sensor response toward ammonia (10–50 ppm) and hydrogen (100–500 ppm) is investigated by X-ray diffraction (XRD) and chemiresistive methods, respectively. It is shown that the sensor response of VOPcF4 films to ammonia is 2–3 times higher than that of VOPc films. By contrast, the sensor response to hydrogen is higher in the case of VOPc films. Apart from this, the hybrid structures of vanadyl phthalocyanine films with Pd nanoparticles deposited on their surface by a chemical vapor deposition method are also tested to reveal the effect of Pd nanoparticles on the sensitivity of VOPc films to hydrogen. Deposition of Pd nanoparticles on the surface of VOPc films leads to the noticeable increase of their sensitivity to hydrogen.

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Phthalocyanine Thin Films: Deposition and Structural Studies

Cited by 42 publications

References 475 publications

Gold(III) phthalocyanine chloride: Optical and structural characterization of thin films

Gold(III) phthalocyanine chloride: Optical and structural characterization of thin films

Factors Affecting the Stability and Performance of Ionic Liquid-Based Planar Transient Photodetectors

Vanadyl Phthalocyanine Films and Their Hybrid Structures with Pd Nanoparticles: Structure and Sensing Properties

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