Modulated gas sensor based on vertical organic diode with blended channel for ppb-regime detection

Ming Yen Chuang, Jian Nan Chen, Hsiao Wen Zan, Chia-Jung Lu, Hsin Fei Meng

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We demonstrate an extremely sensitive ammonia gas sensor based on vertical organic diode to exhibit a 1 ppb detection limit. Using phenyl-C61-butyric acid methyl ester (PCBM) as the sensing layer, the nano-porous structure enlarges the surface to volume ratio and hence realizes the ppb-regime sensitivity. The proposed vertical nano-junction (VNJ) organic diode is then investigated by changing the semiconducting materials (i.e. sensing material). In addition to a pure n-type or p-type sensing material, the blend of n/p organic semiconductor (PCBM/P3HT) is used to react with gas. Changing the n/p blending ratio from 0 to 100% delivers a tunable gas response to ammonia and nitric oxide, hence demonstrating a sensing map concept with good selectivity.

Original languageEnglish
Pages (from-to)223-230
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume230
DOIs
Publication statusPublished - 2016 Jul 1

Fingerprint

Butyric acid
Butyric Acid
Chemical sensors
Ammonia
Esters
Diodes
Gases
diodes
Semiconducting organic compounds
butyric acid
sensors
Nitric oxide
gases
esters
ammonia
Nitric Oxide
organic semiconductors
nitric oxide
selectivity
oxides

Keywords

  • Ammonia
  • Blended
  • Gas sensor
  • P3HT
  • PCBM
  • Vertical

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Modulated gas sensor based on vertical organic diode with blended channel for ppb-regime detection. / Chuang, Ming Yen; Chen, Jian Nan; Zan, Hsiao Wen; Lu, Chia-Jung; Meng, Hsin Fei.

In: Sensors and Actuators, B: Chemical, Vol. 230, 01.07.2016, p. 223-230.

Research output: Contribution to journalArticle

Chuang, Ming Yen ; Chen, Jian Nan ; Zan, Hsiao Wen ; Lu, Chia-Jung ; Meng, Hsin Fei. / Modulated gas sensor based on vertical organic diode with blended channel for ppb-regime detection. In: Sensors and Actuators, B: Chemical. 2016 ; Vol. 230. pp. 223-230.
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