The fabrication of fluorescence polymer/InGaN hybrid light-emitting diodes (LEDs) that emit highly bright broadband red light is presented in this Letter. The absorption peak of the fluorescence polymer was 455 nm, and the emission peak was 640 nm. The light output power and external quantum efficiency of hybrid LEDs at a driving current of 100 mA were 46.6 mW and 24.1%, respectively. The emission spectrum of hybrid LEDs was located at a wavelength of 641 nm, with a broadband FWHM of 106 nm. Thus this study offers potential methods for enhancing the output power of commercial white-light-emitting devices.
© 2013 Optical Society of America
Original Manuscript: August 7, 2013
Revised Manuscript: September 2, 2013
Manuscript Accepted: September 12, 2013
Published: October 9, 2013
Chun-Feng Lai, Chi-Jung Chang, Cheng-Liang Hsieh, Yung-Lin Chen, and Chi-Shen Tuan, "Highly bright broadband red light produced by fluorescence polymer/InGaN hybrid light-emitting diodes," Opt. Lett. 38, 4082-4084 (2013)