Skip to main content Accessibility help

Light-Intensity Dependence of the Staebler-Wronski Effect in a-Si:H with Various Densities of Defects

  • Minoru Kumeda (a1), Ryohei Sakai (a1), Akiharu Morimoto (a1) and Tatsuo Shimizu (a2)


The light-intensity dependence of the photocreation of dangling bonds (DBs) were investigated for a-Si:H films with increasing density of defects before light soaking. Samples in which the density of neutral DBs had been increased by annealing at 400 C for 1 h exhibited a weak light-intensity dependence of the photocreated DBs compared to that for the as-deposited sample. Furthermore, the sample which had been illuminated with a light intensity of 1 W/cm2 for 1 h also showed a weak dependence. The results can be qualitatively explained by using rate equations for the densities of DBs and floating bonds (FBs) based on the FB-mediated photocreation of DBs. When both the densities of DBs and FBs before illumination increase, the light-intensity dependence of the DB density for a moderate value of the illumination time becomes weaker, qualitatively consistent with the observed results.



Hide All
1 Shimizu, T., Jpn. J. Appl. Phys. 43, 3257 (2004).10.1143/JJAP.43.3257
2 Stutzmann, M., Jackson, W. B. and Tsai, C. C., Phys. Rev. B 32, 23 (1985).10.1103/PhysRevB.32.23
3 Kumeda, M., Shimada, M., Kimura, S., Morimoto, A. and Shimizu, T., Jpn. J. Appl. Phys., 42, L255 (2003).10.1143/JJAP.42.L255
4 Shimizu, T., Kidoh, H., Morimoto, A. and Kumeda, M., Jpn. J. Appl. Phys. 28, 586 (1989).10.1143/JJAP.28.586
5 Zhang, Q., Kumeda, M. and Shimizu, T., Jpn. J. Appl. Phys. 32, L371 (1993).10.1143/JJAP.32.L371
6 Shimizu, T. and Kumeda, M., Jpn. J. Appl. Phys., 38, L911 (1999). Some careless errors in this reference were corrected in ref. 1.10.1143/JJAP.38.L911
7 Shimizu, T., Shimada, M. and Kumeda, M., Jpn. J. Appl. Phys. 41, 2829 (2002).10.1143/JJAP.41.2829
8 Branz, H.M., Phys. Rev. B 59, 5498 (1991).


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed