Abstract

Strong white electroluminescence (EL) from SiN-based devices containing Si nanodots with a density of more than 4.6×1012/cm2 was investigated. The white EL illustrates enhanced light emission with increasing applied voltage and can be divided into two components, a dominant peak at 710nm and weak one at 550nm, which are close to those of the PL spectra optically pumped by the 325 and 488 nm lines, respectively. Based on the PL characteristics, we propose that the dominant EL band arises from the band-to-band recombination in the dense Si nanodots where quantum confinement plays a decisive role in the light emission, whereas the weak EL band originates from the radiative Si dangling bond (K0) centers in the silicon nitride matrix.

© 2012 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Effect of annealing treatment on electroluminescence from GaN/Si nanoheterostructure array

Chang Bao Han, Chuan He, Xiao Bo Meng, Ya Rui Wan, Yong Tao Tian, Ying Jiu Zhang, and Xin Jian Li
Opt. Express 20(5) 5636-5643 (2012)

Electrically tunable white-color electroluminescence from Si-implanted silicon nitride thin film

Z. H. Cen, T. P. Chen, Z. Liu, Y. Liu, L. Ding, M. Yang, J. I. Wong, S. F. Yu, and W. P. Goh
Opt. Express 18(19) 20439-20444 (2010)

Tunable red light emission from a-Si:H/a-SiNx multilayers

Chao Song, Rui Huang, Xiang Wang, Yanqing Guo, and Jie Song
Opt. Mater. Express 3(5) 664-670 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription