Basic tastes classification using thin-film transistors based on poly (3-hexylthiophene)

Rodríguez, Eduardo Martín; Cavallari, Marco Roberto; Braga, Guilherme S.; Rodríguez, Estrella F. G.; Fonseca, Fernando Josepetti

doi:10.1109/sbmicro.2013.6676117

Cited by 2 publications

(2 citation statements)

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“…According to Chu et al, encapsulation of P3HT by PMMA in a top gate structure should provide at least 29 days (~ 700 h) of stability [10]. Since the results herein were comparable to the literature [1,2,10] and to previous work from this research group [3][4][5][6]9], the processing methodology could be validated, and the same fabrication parameters were applied to flexible substrates.…”

Section: A Transistor Performance On a Rigid Substratesupporting

confidence: 61%

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Stability of Polythiophene-Based Transistors upon Bending for Gas Sensing Applications

Zanchin

Cavallari

Fonseca

2021

JICS

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It is presented herein a fabrication procedure for organic thin film transistors over flexible substrates, as well as an evaluation of the electrical performance upon bending stresses. Top gate/bottom contact flexible transistors of poly(3-hexylthiophene) (P3HT) were successfully fabricated, by carefully tuning organic films drying temperatures, photolithography solvents and the pattern of electrode pads. The transistors were processed over both rigid and flexible substrates for comparison purposes. A P3HT hole mobility approaching 0.01 cm2/Vs was observed for all devices and even on different substrates. In spite of a current modulation of ca. 10, P3HT over poly(ethylene terephthalate) (PET) featured transistor behavior upon bending down to a curvature radius of 8 mm. Bending direction, however, produced different effects on the transistor characteristics, especially on gold electrodes.

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Section: A Transistor Performance On a Rigid Substratesupporting

confidence: 61%

“…1(b) is generally built on highly-doped Si wafers [5,6]. However, it finds application as liquid and gas sensors to compose electronic tongues [5] and noses [6], respectively. In this case, the semiconductor remains exposed to the atmosphere and, consequently, to target analytes.…”

Section: Introductionmentioning

confidence: 99%