Your browser has javascript turned off or blocked. This will lead to some parts of our website to not work properly or at all. Turn on javascript for best performance.

The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Portrait of Reine Wallenberg. Photo: Kennet Ruona

Reine Wallenberg

Professor, Coordinator Materials Science

Portrait of Reine Wallenberg. Photo: Kennet Ruona

Realization of Ultrahigh Quality InGaN Platelets to be Used as Relaxed Templates for Red Micro-LEDs

Author

  • Zhaoxia Bi
  • Taiping Lu
  • Jovana Colvin
  • Elis Sjögren
  • Neimantas Vainorius
  • Anders Gustafsson
  • Jonas Johansson
  • Rainer Timm
  • Filip Lenrick
  • Reine Wallenberg
  • Bo Monemar
  • Lars Samuelson

Summary, in English

In this work, arrays of predominantly relaxed InGaN platelets with indium contents of up to 18%, free from dislocations and offering a smooth top c-plane, are presented. The InGaN platelets are grown by metal-organic vapor phase epitaxy on a dome-like InGaN surface formed by chemical mechanical polishing of InGaN pyramids defined by 6 equivalent {101¯ 1} planes. The dome-like surface is flattened during growth, through the formation of bunched steps, which are terminated when reaching the inclined {101¯ 1} planes. The continued growth takes place on the flattened top c-plane with single bilayer surface steps initiated at the six corners between the c-plane and the inclined {101¯ 1} planes, leading to the formation of high-quality InGaN layers. The top c-plane of the as-formed InGaN platelets can be used as a high-quality template for red micro light-emitting diodes.

Department/s

  • Solid State Physics
  • NanoLund
  • Synchrotron Radiation Research
  • Materials Engineering
  • Production and Materials Engineering
  • Centre for Analysis and Synthesis

Publishing year

2020

Language

English

Pages

17845-17851

Publication/Series

ACS Applied Materials and Interfaces

Volume

12

Issue

15

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Condensed Matter Physics

Keywords

  • chemical mechanical polishing
  • InGaN
  • micro-LEDs
  • selective area growth
  • template
  • vapor phase epitaxy

Status

Published

ISBN/ISSN/Other

  • ISSN: 1944-8244