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|Title:||Explosive vapor sensor using poly (3-hexylthiophene) and Cu(II) tetraphenylporphyrin composite based organic field effect transistors|
|Publisher:||AMER INST PHYSICS|
|Citation:||APPLIED PHYSICS LETTERS, 93(26), -|
|Abstract:||Organic field effect transistors based on poly(3-hexylthiophene) and Cu(II) tetraphenylporphyrin composite were investigated as sensors for detection of vapors of nitrobased explosive compounds, viz., 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX), 2,4,6-trinitrotoluene (TNT), and dinitrobenzene, which are also strong oxidizing agents. Significant changes, suitable for sensor response, were observed in transistor "on" current (I(on)) and conductance (S) after exposure. A similar device response was, however, not observed for oxidizing agents such as benzoquinone and benzophenone. The Fourier transform infrared spectrometry experiments supported the results, where exposure to RDX and TNT vapors resulted in a significant shift in IR peaks.|
|Appears in Collections:||Article|
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