Morphological and Electrical Studies of Titania Powder and Films Grown by Aqueous Solution Method

Dastan, Davoud; Panahi, S. Leila; Yengntiwar, Ashish P; Banpurkar, Arun

doi:10.1166/asl.2016.7130

Cited by 69 publications

(17 citation statements)

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“…FE-SEM was used to observe the microstructures of the imprinted and non-imprinted polymers. 32 Analysis of the images in Fig. 3 confirmed that there were a few, large-sized pores in the non-imprinted polymers.…”

Section: Resultsmentioning

confidence: 69%

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Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu²⁺ions

Cao

Liu

et al. 2019

Polymer International

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A novel ion‐imprinted polymer (IIP) using (6‐O‐butene diacid ester)‐β‐cyclodextrin (β‐CD‐MAH) as the functional monomer and copper ions as the template was developed for Cu2+ sensing. First, reactive β‐cyclodextrin (β‐CD) monomers with vinyl carboxylic acid functional groups were synthesised and were co‐polymerised with styrene via radical polymerisation. Then, the β‐CD copolymers were complexed with Cu2+ in order to obtain the IIP. The imprinting effect was realised by removing the template ions from the imprinted polymer. The structure, composition and morphology of the IIP were characterised by Fourier transform IR spectroscopy, energy‐dispersive spectroscopy and field‐emission SEM. The adsorption capacity was investigated by UV–visible spectroscopy in batch operation mode. The maximum adsorption capacity for the Cu2+ template ions was 28.91 mg g−1, and the adsorption selectivity was clearly illustrated from the increased sorption affinity towards Cu2+ ions over other competing ions. The adsorption was affected by the pH of the aqueous medium, and enhanced adsorption capacity was observed at pH 5. The prepared IIP could be used 10 times after its regeneration without significant loss of the adsorption capacity. © 2018 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 69%

“…FE‐SEM was used to observe the microstructures of the imprinted and non‐imprinted polymers . Analysis of the images in Fig.…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu²⁺ions

Cao

Liu

et al. 2019

Polymer International

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“…This value is very suitable for titanium dioxide applications [38][39][40][41]. Figure 1 also displays calculated oscillator strengths.…”

Section: Scheme 1 Synthesis Of the Phthalocyanine Complex: (mentioning

confidence: 95%

Ball-Type Dioxy-o-Carborane Bridged Cobaltphthalocyanine: Synthesis, Characterization and DFT Studies For Dye-Sensitized Solar Cells as Photosensitizer

Şener

2020

Heterocyclic Communications

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The synthesis and spectroscopic characterization of an innovative ball-type cobalt metallophthalocyanine 4, bridged by four 1,2-bis(2-hydroxymethyl)-O-carborane (HMOC) 1 units, has been achieved. The synthesized compound 4 was characterized structurally and electronically using elemental analysis, UV-Vis absorption spectroscopy, FT-IR spectroscopy, MALDI-TOF mass spectrometry, EPR spectroscopy and magnetic susceptibility. The photovoltaic performance of the newly synthesized compound in dye-sensitized solar cells was investigated. In order to clarify the effect of dye-sensitization time on photovoltaic performance parameters, the sensitization time was varied from 12 to 60 h and the performance parameters were investigated. It was found that sensitization time had a strong effect on the main performance parameters. The best photovoltaic performance was achieved after sensitization for 36 h (short circuit current density, 5.41 mA cm−2; overall conversion efficiency, 3.42%). Computational UV-Vis absorption spectra of the molecule was calculated using time dependent density functional theory and was found consistent with measured UV-Vis spectra.

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“…The best performance of poly(3-hexylthiphene)-based OFETs was observed with mobility of 0.12 cm 2 V −1 s −1 and operation voltage of −5 V while the ratio of AD/PVA was 25%/75% [51]. Furthermore, incorporating high-κ nanoparticles into polymer can also be utilized to enhance the capacitance of the dielectrics [60][61][62][63][64]. The polymeric-nanoparticle composites not only include the merits of inorganic highκ materials, but also retain the advantages of organic counterparts, such as flexibility and easy processability [62,[65][66][67][68][69].…”

Section: Methodsmentioning

confidence: 99%

Low-power-consumption organic field-effect transistors

et al. 2020

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At present, the electrical performance of organic field-effect transistors (OFETs) has reached the level of commercial amorphous silicon. OFETs show considerable application potential in artificial intelligence, deep learning algorithms, and artificial skin sensors. The devices which can operate with high performance and low power consumption are needed for these applications. The recent energyrelated improvement to realize low-power consumption OFETs were reviewed, including minimizing operating voltage, reducing subthreshold swing, and decreasing contact resistance. In this review, we demonstrate breakthroughs in materials and methods to decrease power consumption, providing a promising avenue toward low-power consumption organic electronics. IntroductionFollowing the seminal paper from Tsumura, in which he demonstrated the first polythiophene-based field-effect transistor in 1986, organic field-effect transistors (OFETs) have received tremendous developments due to the intriguing properties of organic semiconductors, such as flexibility, stretchability, biocompatibility, solution processibility, and low cost [1][2][3][4]. To date, the field-effect mobility, which is the main character of an OFET device, has increased over 40 cm 2 V −1 s −1 . With the improvements in electric performance, the large-scale integration of OFETs have facilitated impressive application demonstrations, including organic light-emitting diode displays, radiofrequency identification tagging, and artificial skin [5][6][7][8][9][10][11][12]. To meet the future demand for product miniaturization and high properties, the number and density of transistors need to be increased, thus the heat energy caused by the power dissipation will lead to the degradation of organic materials and the life reduction of devices [13][14][15][16][17][18][19]. In addition, high power consumption limits the applications of most portable electronics which need an external battery [20][21][22][23]. All of these demands in applications require transistors to operate with extremely low-power consumption. However, power dissipation of most OFETs suffers from a high operating voltage typically a few tens of volts, which has a quadratic effect on dynamic power consumption [3,[24][25][26][27][28][29]. Furthermore, transistors sizes are also now approaching the point where quantum effects become appreciable, which can lead to an increased gate leakage current due to quantum tunneling and, in turn, an increased static power consumption.Achieving extremely energy-efficient OFETs is an essential prerequisite for commercial applications. After years of expansive development, significant advancements have been made in fabricating high quality dielectrics, thus reducing the operating voltage and leakage current. Furthermore, the subthreshold slope, which is negative correlation with switching efficiency, has witnessed a significant decrease driven by the process optimization and interface engineering [6,[30][31][32]. Additionally, the contact between semiconductors and electro...

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Morphological and Electrical Studies of Titania Powder and Films Grown by Aqueous Solution Method

Cited by 69 publications

References 0 publications

Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu²⁺ions

Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu²⁺ions

Ball-Type Dioxy-o-Carborane Bridged Cobaltphthalocyanine: Synthesis, Characterization and DFT Studies For Dye-Sensitized Solar Cells as Photosensitizer

Low-power-consumption organic field-effect transistors

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Morphological and Electrical Studies of Titania Powder and Films Grown by Aqueous Solution Method

Cited by 69 publications

References 0 publications

Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu2+ions

Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu2+ions

Ball-Type Dioxy-o-Carborane Bridged Cobaltphthalocyanine: Synthesis, Characterization and DFT Studies For Dye-Sensitized Solar Cells as Photosensitizer

Low-power-consumption organic field-effect transistors

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Product

Resources

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Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu²⁺ions

Preparation and characterisation of a novel copper‐imprinted polymer based on β‐cyclodextrin copolymers for selective determination of Cu²⁺ions