Optical studies on InxGa1-xN quantum disks

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 7937 (2011) 793713-793713-8

Authors:

Mark J Holmes, Young S Park, Xu Wang, Christopher CS Chan, Anas F Jarjour, Jun Luo, Jamie H Warner, HAR El-Ella, RA Oliver, Robert A Taylor

Ano expresspen accessgan nanorods grown on si (111) infstrates and exciton localization

Nanoscale Research Letters 6:1 (2011)

Authors:

YS Park, MJ Holmes, Y Shon, IT Yoon, H Im, RA Taylor

Abstract:

We have investigated exciton localization in binary GaN nanorods using micro- and time-resolved photoluminescence measurements. The temperature dependence of the photoluminescence has been measured, and several phonon replicas have been observed at the lower energy side of the exciton bound to basal stacking faults (I1). By analyzing the Huang-Rhys parameters as a function of temperature, deduced from the phonon replica intensities, we have found that the excitons are strongly localized in the lower energy tails. The lifetimes of the I1 and I2 transitions were measured to be < 100 ps due to enhanced surface recombination. PACS: 78.47.+p, 78.55.-m, 78.55.Cr, 78.66.-w, 78.66.Fd. © 2011 Park et al.

Carrier dynamics of InxGa1-xN quantum disks embedded in GaN nanocolumns

JOURNAL OF APPLIED PHYSICS 109:6 (2011) ARTN 063515

Authors:

Mark J Holmes, Young S Park, Xu Wang, Christopher CS Chan, Anas F Jarjour, Robert A Taylor, Jamie H Warner, Jun Luo, HAR El-Ella, RA Oliver

Growth and optical characterisation of multilayers of InGaN quantum dots

Journal of Crystal Growth (2011)

Authors:

T Zhu, HAR El-Ella, B Reid, MJ Holmes, RA Taylor, MJ Kappers, RA Oliver

InGaN super-lattice growth for fabrication of quantum dot containing microdisks

JOURNAL OF CRYSTAL GROWTH 321:1 (2011) 113-119

Authors:

HAR El-Ella, F Rol, DP Collins, MJ Kappers, RA Taylor, EL Hu, RA Oliver