Switching behaviour and high frequency response of amorphous carbon double-barrier structures

Bhattacharyya, Somnath; Rojas, Luis Gomez; Henley, Simon J.; Silva, S. Ravi P.

doi:10.1016/j.msec.2006.09.027

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…Different allotropic forms of carbon have been widely used in broad application fields. Carbon materials are available in different forms like carbonized porous form [ 74 ], graphite [ 75 ], diamond or diamond like carbon [ 76 ], fullerenes [ 77 , 78 ], graphene [ 79 ], amorphous carbon [ 79 – 81 ], carbon nanotubes (CNTs) [ 82 ], carbon nanofibers (CNFs) [ 83 ] and nanostructured carbon films (carbon nanosheets and nanohoneycombs) [ 12 ]. A small amount of carbon present as an inclusion or dopant may also be able to change the properties of materials exponentially.…”

Section: Different Key Sensing Materials and Their Characteristics Inmentioning

confidence: 99%

Role of Morphological Structure, Doping, and Coating of Different Materials in the Sensing Characteristics of Humidity Sensors

Tripathy

Pramanik

Cho

et al. 2014

Sensors

102

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The humidity sensing characteristics of different sensing materials are important properties in order to monitor different products or events in a wide range of industrial sectors, research and development laboratories as well as daily life. The primary aim of this study is to compare the sensing characteristics, including impedance or resistance, capacitance, hysteresis, recovery and response times, and stability with respect to relative humidity, frequency, and temperature, of different materials. Various materials, including ceramics, semiconductors, and polymers, used for sensing relative humidity have been reviewed. Correlations of the different electrical characteristics of different doped sensor materials as the most unique feature of a material have been noted. The electrical properties of different sensor materials are found to change significantly with the morphological changes, doping concentration of different materials and film thickness of the substrate. Various applications and scopes are pointed out in the review article. We extensively reviewed almost all main kinds of relative humidity sensors and how their electrical characteristics vary with different doping concentrations, film thickness and basic sensing materials. Based on statistical tests, the zinc oxide-based sensing material is best for humidity sensor design since it shows extremely low hysteresis loss, minimum response and recovery times and excellent stability.

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Section: Different Key Sensing Materials and Their Characteristics Inmentioning

confidence: 99%

Role of Morphological Structure, Doping, and Coating of Different Materials in the Sensing Characteristics of Humidity Sensors

Tripathy

Pramanik

Cho

et al. 2014

Sensors

102

View full text Add to dashboard Cite

show abstract

“…Within the DLC matrix, the sp 2 sites tend to be arranged in planar, p bonded clusters (conducting graphite-like phase) embedded in a sp 3 bond matrix that has a wide r-r * gap. [26][27][28] Accordingly, the Cu/DLC/Pt structure exhibited a resistive switching behavior. 1 On the other hand, it has been reported that by applying high electric voltage to carbon based devices, an electrical conducting graphitic channel is formed in DLC films due to a local heating process induced by the high current flow.…”

Section: Resultsmentioning

confidence: 98%

Growth properties and resistive switching effects of diamond-like carbon films deposited using a linear ion source

Dai

Wang

2013

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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Articles you may be interested inSuperhard behaviour, low residual stress, and unique structure in diamond-like carbon films by simple bilayer approach J. Appl. Phys. 112, 023518 (2012); 10.1063/1.4739287 Synergism between low-energy neutral particles and energetic ions in the pulsed glow discharge deposition of diamond-like carbon films Electron field-emission from diamond-like carbon films grown by a saddle field fast atom beam source Structural and mechanical properties of diamond-like carbon films deposited by direct current magnetron sputtering J. Vac. Sci. Technol. A 21, 851 (2003); 10.1116/1.1575231Effects of increasing nitrogen concentration on the structure of carbon nitride films deposited by ion beam assisted deposition Diamond-like carbon (DLC) films were prepared using an anode-layer linear ion beam source with C 2 H 2 as the precursor and various negative bias voltages. The growth properties, microstructures, mechanical properties, and the resistive switching behaviors of the as-deposited DLC films were investigated as a function of bias voltage. The results showed that adjusting the bias voltage could vary the carbon atomic bonding structure (sp 3 /sp 2 carbon hybridized bonding) of the films. The sp 3 /sp 2 ratio initially increased as bias voltage increased and then decreased once the bias voltage exceeded À100 V. The variations in the film hardness and residual stress at different bias voltages were similar in profile to the sp 3 bond fractions, indicating that both the residual stress and the mechanical properties of the DLC films were highly dependent on sp 3 -C bonding structures. The resistive switching characteristics of the DLC films were studied via a Cu/DLC/Pt cell structure. It was found that the bias voltages had a significant influence on the resistive switching behaviors of the DLC films. The film deposited with a bias voltage of 0 V showed excellent resistive switching effects with an ON/OFF ratio higher than 70 and device yield of about 90%, while the films deposited with higher bias voltages presented poor resistive switching effects. The sp 2 /sp 3 ratio of the films was believed to account for the favorable resistive switching performances.

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Switching behaviour and high frequency response of amorphous carbon double-barrier structures

Cited by 2 publications

References 13 publications

Role of Morphological Structure, Doping, and Coating of Different Materials in the Sensing Characteristics of Humidity Sensors

Role of Morphological Structure, Doping, and Coating of Different Materials in the Sensing Characteristics of Humidity Sensors

Growth properties and resistive switching effects of diamond-like carbon films deposited using a linear ion source

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