Gas-sensitive characteristics of metal/semiconductor polymer Schottky device

Campos, M.; Bulhões, L.O.S.; Lindino, Cléber Antônio

doi:10.1016/s0924-4247(00)00465-9

Cited by 91 publications

(49 citation statements)

References 18 publications

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“…In CP based Schottky-like structures, the current through the junction depends on the work function of the CP which can be modified by interaction with analytes. This principle was used for detection of NO x [299][300][301], ammonia [299], methane [302], alcohol and water vapors [299]. Aluminium and/or gold were used as metals while PANI, P3OTH and PPY were used as CP in these diodes.…”

Section: Organic Transistors and Diodes As Transducersmentioning

confidence: 99%

Conducting polymers in chemical sensors and arrays

Lange¹,

Roznyatovskaya²,

Mirsky³

2008

Analytica Chimica Acta

845

434

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Section: Organic Transistors and Diodes As Transducersmentioning

confidence: 99%

Conducting polymers in chemical sensors and arrays

Lange¹,

Roznyatovskaya²,

Mirsky³

2008

Analytica Chimica Acta

845

434

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“…Thus, polymers with a conjugated bonding system are being now used due to the excellent electrical characteristics of these materials for microelectronic device manufacturing . Sensors based on aniline and derivates can be doped at specific ratios with other compounds, as sulphonic acids (Koul et al 2001) or HCl (Campos et al 2000), so enhancing their electrical-optical properties and solubility in organic solvents. The dopants provide extra charges in the chain of the polymer with the formation of charged defects, such as spinless bipolarons or small regions of positive charge in the polymer chain that provide mobile holes for electron transport.…”

Section: Conducting Polymer Sensorsmentioning

confidence: 99%

Sensors: From biosensors to the electronic nose

García‐González

Aparicio

2002

Grasas y Aceites

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“…The two types of gases have opposite effects on the diode characteristics, which were explained by the acceptor and the donor behavior, respectively. Chemical sensitivities of PANI toward gases and vapors, such as ammonia, hydrogen, methane, and NO x have been shown [14,17,44]. Nguyen et al studied the influence of different metal phthalocyanines incorporated in PPy on the NO x sensing properties of the Au/PPy diodes [17].…”

Section: Examples Of Polymer Schottky Diode Gas Sensorsmentioning

confidence: 99%

Gas Sensing with Conducting Polymers

Potje‐Kamloth

2010

Electropolymerization

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IntroductionConducting polymers belong to the group of organic semiconductors. They have received considerable attention recently owing to their numerous potential applications in electronic components such as Schottky diodes [1], field-effect transistors (FETs) [2], and electroluminescent diodes [3,4]. Because of the inherent flexibility of organics and their relative ease of processing, as well as the easy tunability of electric properties by means of chemical substitutions, these materials provide new avenues in the development of electronic devices. Furthermore, these materials exhibit a particularity concerning their interaction with gases and vapors [5]. Interacting electrically neutral gas molecules can donate/accept fractional electronic charge, thereby changing the electronic properties of the matrix. The modulation of electrical properties of polymers upon interaction with gas depends on the type of the conducting polymer.The following sections give an overview of the basic properties of conducting polymers that are required to understand the operation of conducting polymer-based gas sensors. The mechanism of interactions between conducting polymers and gas or vapor species that is used as a transduction principle in gas sensors is discussed. Examples of the gas-sensing properties of conducting polymer gas sensors are given. They show how experimental and structural parameters of conducting polymers can influence the sensor characteristics. Electronic Properties of Conducting PolymersPolymers are typically associated with flexible, processible materials having electrically insulating properties. Although this is true of most polymers, a special class of these materials called conjugated polymers has the electrical and optical properties traditionally associated with metals and semiconductors, yet they retain the mechanical properties and the processibility of plastics [6]. Conjugated polymers Electropolymerization: Concepts, Materials and Applications. Edited by Serge Cosnier and Arkady Karyakin

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Gas-sensitive characteristics of metal/semiconductor polymer Schottky device

Cited by 91 publications

References 18 publications

Conducting polymers in chemical sensors and arrays

Conducting polymers in chemical sensors and arrays

Sensors: From biosensors to the electronic nose

Gas Sensing with Conducting Polymers

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