Solution-Processed Chloroaluminum Phthalocyanine (ClAlPc) Ammonia Gas Sensor with Vertical Organic Porous Diodes
| Autor: | Hsin-Fei Meng, Hsiao Wen Hung, Hsiao-Wen Zan, Li-Yin Chen, Govindsamy Madhaiyan, An Ting Sun, Sheng-fu Horng |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
TP1-1185 Biochemistry Analytical Chemistry chemistry.chemical_compound Relative humidity e-nose Electrical and Electronic Engineering Thin film Porosity Instrumentation Solution process Diode business.industry organic semiconductor Communication Chemical technology Atomic and Molecular Physics and Optics Organic semiconductor chemistry Electrode Phthalocyanine Optoelectronics room temperature business vertical organic diode ammonia gas sensor |
| Zdroj: | Sensors, Vol 21, Iss 5783, p 5783 (2021) Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| Popis: | In this research work, the gas sensing properties of halogenated chloroaluminum phthalocyanine (ClAlPc) thin films were studied at room temperature. We fabricated an air-stable ClAlPc gas sensor based on a vertical organic diode (VOD) with a porous top electrode by the solution process method. The surface morphology of the solution-processed ClAlPc thin film was examined by field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). The proposed ClAlPc-based VOD sensor can detect ammonia (NH3) gas at the ppb level (100~1000 ppb) at room temperature. Additionally, the ClAlPc sensor was highly selective towards NH3 gas compared to other interfering gases (NO2, ACE, NO, H2S, and CO). In addition, the device lifetime was tested by storing the device at ambient conditions. The effect of relative humidity (RH) on the ClAlPc NH3 gas sensor was also explored. The aim of this study is to extend these findings on halogenated phthalocyanine-based materials to practical electronic nose applications in the future. |
| Databáze: | OpenAIRE |
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