Hybrid ITO transparent conductive electrodes embedded with Pt nanoclusters for enhanced output efficiency of GaN-based light-emitting diodes

作者：Gil Youngun; Kim Hyunsoo^*

来源：Thin Solid Films, 2016, 603: 307-312.

DOI：10.1016/j.tsf.2016.02.041

• Hybrid ITO
• Transparent conductive electrodes
• Plasma damage
• Pt nanoclusters
• Light emitting diodes

Hybrid ITO transparent conductive electrodes (TCEs) embedded with Pt nanoclusters were investigated for the fabrication of reliable and efficient GaN-based light-emitting diodes (LEDs). Hybrid ITO TCEs fabricated by combining interfacial Pt nanoclusters with a coverage ratio of 23.7% (acting as an Ohmic patch) and a 100-nm thick sputtered ITO film yielded a low specific contact resistance of similar to 1.3 x 10(-2) Omega cm(2), a sheet resistance of 24 Omega/sq, and a high optical transmittance of 90% at 450 nm. LEDs fabricated with the hybrid ITO TCEs showed a 17.2% brighter light output power compared to reference LEDs. This indicates that the high-quality sputtered ITO film can be practically used in LED applications by embedding Pt nanoclusters.

• 出版日期2016-3-31