Blue-Green Laser Diode Research Program.
Abstract
The Znse materials work was devoted almost exclusively to various attempts at p doping, and some of the results are quite encouraging. The laboratories have tried both Na- and Li doping and have completed work on Sb-doping, including some laser assisted incorporation of Sb. Using a clean source of Na, the laboratories were able to incorporate larger concentrations of Na without a concomitant increase in unintentionally-incorporated extrinsic donors, as was the case when the Na2Se compound source was used. Na appears to be well-behaved in the sense that the incorporated-Na concentration increases in direct proportion to the incident Na flux. However, the films remain n-type, albeit of high resistivity, even at the highest Na concentrations. In addition, the photoluminescence (PL) in high-Na-concentrations films show large broad emission near 2.60 ev,implying the presence of structural defects, perhaps induced by the Na atoms themselves. Exploring the intrinsic properties of Na as an acceptor dopant in ZnSe was studied for the first time. Previous attempts were flawed by the simultaneous incorporation of unintentially- incorporated donors. Keywords: Zinc selenide; Doping, Sodium, Blue Green lasers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1987
- Accession Number
- ADA183517
Entities
People
- C. T. Walker
- H. A. Mar
- J. E. Potts
Organizations
- 3M