Light extraction efficiency enhancement of flip-chip blue light-emitting diodes by anodic aluminum oxide

We produced an anodic aluminum oxide (AAO) structure with periodic nanopores on the surface of flip-chip blue light-emitting diodes (FC-BLEDs). The nanopores had diameters ranging from 73 to 85 nm and were separated by distances ranging from approximately 10 to 15 nm. The light extraction efficiency...

Descripción completa

Detalles Bibliográficos
Autores principales: Huang, Yi-Ru, Chiu, Yao-Ching, Huang, Kuan-Chieh, Ting, Shao-Ying, Chiang, Po-Jui, Lai, Chih-Ming, Jen, Chun-Ping, Tseng, Snow H, Wang, Hsiang-Chen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2018
Materias:
Full Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6009532/
https://www.ncbi.nlm.nih.gov/pubmed/29977694
http://dx.doi.org/10.3762/bjnano.9.152
Descripción
Sumario:We produced an anodic aluminum oxide (AAO) structure with periodic nanopores on the surface of flip-chip blue light-emitting diodes (FC-BLEDs). The nanopores had diameters ranging from 73 to 85 nm and were separated by distances ranging from approximately 10 to 15 nm. The light extraction efficiency enhancement of the FC-BLEDs subjected to different durations of the second pore-widening process was approximately 1.6–2.9%. The efficiency enhancement may be attributed to the following mechanism: periodic nanopores on the surface of FC-BLEDs reduce the critical angle of total reflection and effective energy transfer from a light emitter into a surface plasmon mode produced by AAO.

Ejemplares similares