Inkjet printed chemical sensor array based on polythiophene conductive polymers

Conducting polymer: silver interface, morphology and properties

“…These compounds are characterized by significant environmental and thermal stability, high conductivity, and small band gap values [16][17][18][19]. Chemical structure of polythiophene permits wide range of modification without destruction of conjugated double bond system responsible for the unique electronic properties [20,21].…”

Sensor Arrays Based on Polycyclic Aromatic Hydrocarbons: Chemiresistors versus Quartz-Crystal Microbalance

“…12,23 The implementation of the sensors should be simple and cost-effective enough to be economically viable for real-world applications. Sensors with electronic and electro-acoustic transduction mechanisms, such as chemically sensitive resistors [24][25][26][27][28][29][30][31][32][33] and quartz-crystal microbalance (QCM) sensors [34][35][36] are among the most attractive and widespread elements for sensing applications that involve the detection and classification of volatile organic compounds (VOCs) in the gas phase. 9,11,13,16,19,20,24,37 Recently, we have shown that polycyclic aromatic hydrocarbon (PAH) derivatives as sensing materials in chemiresistors, field effect transistors or QCM sensors can provide good sensitivity and robust selectivity towards different polar and nonpolar VOCs, while being highly tolerant even to drastic humidity variations.…”

Inkjet printed LED based pH chemical sensor for gas sensing

“…Inkjet printing has gradually become a versatile tool for accurately depositing very small quantities (tens of picoliters) of materials at defined positions on the surface of a wide variety of substrates. So far within scientific research, inkjet printing has been mostly applied to the manufacture of polymer light emitting diodes [29][30][31][32], deposition of conducting polymers [6,[33][34][35] and fluorescent nanoparticles [36] and fabrication of biosensors [37,38]. Inkjet printing offers advantages over other methods of deposition of thin films, such as patterning capability, reduction in waste products, high speed production, low cost fabrication, room temperature deposition, printing on large area and flexible substrates [6].…”