Structural Studies on Semiconducting Hydrogenated Amorphous Silicon Oxide Films
| dc.creator | Iftiquar, S. M. | |
| dc.date | 2003-05-28 | |
| dc.date.accessioned | 2026-07-07T08:43:12Z | |
| dc.date.available | 2026-07-07T08:43:12Z | |
| dc.description | In hydrogenated amorphous silicon oxide (a-SiO:H) films, incorporation of oxygen enhances optical gap due to a large number of St-O-Si bond formation, which lies deep into valence band states. An induction effect of this Si-O on other bonds within the network also takes place. At higher oxygen content micro-void forms and bonded hydrogen accumulates in di and/or polyhydride form. At this stage a phase separation of Si-rich and O-rich region taking place. A peak shift of absorption spectra within 1850 - 2250 cm-1, towards higher wave number is continuous. A gradual increase and broadening of 850 cm-1 absorption band on both sides of peak position indicate higher structural disorder in network formation. It may be considered that the stretching vibration of-OH bonded to Si gives rise to 780 cm-1 absorption band. This Si-OH formation is beneficial which prevents deterioration in photosensitivity due to reduction in bonded hydrogen content. Hydrogen content is found reducing as oxygen content increases from zero to ~15 at.%. A systematic study is carried out to correlate the optoelectronic property with local atomic arrangement. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0305636 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0305636 | |
| dc.identifier | High temperature Material Processes;Volume 6, Issue 1;Year 2002;pp. 35 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/142233 | |
| dc.subject | Condensed Matter | |
| dc.title | Structural Studies on Semiconducting Hydrogenated Amorphous Silicon Oxide Films | |
| dc.type | text |