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Document Type : Research Paper


1 Department of Chemistry, College of chemistry, Yadegar-e-Imam Khomeini (RAH) Branch, Islamic Azad University, Tehran, Iran

2 Department of Chemistry, College of chemistry,Malek Ashtar University of Technology

3 Department of Chemistry, College of Chemical Engineering , Mahshahr Branch, Islamic Azad University, Mahshahr, Iran


Electrical sensitivity of a beryllium oxide nanotube (BeONT) was examined toward (C5H5N) molecule by using density functional theory (DFT) calculations at the B3LYP/6-31(d) level, and it was found that the adsorption energy (Ead) of pyridine on the pristine nanotubes is   a bout -73.29kcal/mol. But when nanotubes has been doped with S and P atomes , the adsorption energy changed . Calculation showed that when the nanotube is doping by P, the adsorption energy is about -39.59kcal/mol and also the amount of HOMO/LUMO energy gap (Eg) will reduce significantly (Eg=2.55Ev). The BeONT doped with P is suitable semiconductor than the pristine BeONT


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