Rak-Jun Choi, Yoon-Bong Hahn, Hyung-Jae Lee

The Blue Light-Emitting Diodes

Fabrication and Characterization of Light-Emitting Diodes with Varying InGaN/GaN Multiple Quantum-Well Structures

• Broschiertes Buch

Produktbeschreibung

In this book, I have optimized the growth of n- and p-GaN films, and high quality InGaN/GaN multiple quantum wells (MQWs) on sapphire (0001) substrate by a low pressure metal-organic chemical vapour deposition and have fabricated high brightness InGaN/GaN MQW light-emitting diodes (LEDs) under optimum conditions. To improve quantum efficiency which is generally poor in the conventional rectangular-shaped QWs due to spatial indirect recombination induced by internal piezoelectric field, we proposed a possibility of quantum dot (QD) engineering with triangular-shaped band structure in the InGaN/GaN QWs. The structural and optical properties of the InGaN/GaN MQWs with different threading dislocation densities were also investigated. The effects of Si-doped n-GaN and Mg-doped p-GaN layers on the electrical and optical properties of the InGaN/GaN MQW LEDs were investigated and optimized under various growth parameters.

Produktdetails

• Verlag: VDM Verlag Dr. Müller
• Seitenzahl: 156
• Erscheinungstermin: 30. November 2012
• Englisch
• Abmessung: 220mm x 150mm x 10mm
• Gewicht: 225g
• ISBN-13: 9783639268195
• ISBN-10: 3639268199
• Artikelnr.: 30574035

Autorenporträt

I got the degree of Ph.D. in Dept. of Chemical Engineering and Semiconductor Physics Research Centers, Chonbuk National University, South Korea. I worked at the Venture Business Laboratory of the University of Tokushima, Japan. I have studied on growth and fabrication of III-nitrides semiconductor such as LEDs and LDs.