@article{35885990c1954856887a1ed0924b069e,
title = "Phosphor-free GaN-based transverse junction white-light light-emitting diodes with regrown n-type regions",
abstract = "In this study, we demonstrate a GaN-based phosphor-free white-light light-emitting diode (LED), which is composed of GaN-based dual-wavelength (blue and yellow-green) multiple-quantum-wells (MQWs) and a transverse p-n junction. The device was realized by the regrowth of n-type GaN layers on the sidewall of p-type GaN and undoped MQWs. The problems related to the bias-dependent shape of the electroluminescence spectra that occur in traditional phosphor-free white-light LEDs (with vertical p-n junctions) are greatly minimized. The current-voltage performance of our device is comparable to that of the commercially available phosphor white-light LEDs. In addition, the dynamic measurement results indicate that we can attain a much higher modulation bandwidth (22 versus 3 MHz) with this device than with the currently available commercial ones.",
keywords = "GaN light-emitting diodes (LEDs), White-light generation",
author = "Shi, {J. W.} and Chen, {C. C.} and Wang, {C. K.} and Lin, {C. S.} and Sheu, {J. K.} and Lai, {W. C.} and Kuo, {C. H.} and Tun, {C. J.} and Yang, {T. H.} and Tsao, {F. C.} and Chyi, {J. I.}",
note = "Funding Information: Manuscript received August 13, 2007; revised December 12, 2007. This work was supported by the National Science Council of Taiwan under Grant NSC-95-2215-E-008-008-. J.-W. Shi, C.-C. Chen, C.-K. Wang, C.-S. Lin, and J.-I. Chyi are with the Department of Electrical Engineering, National Central University, Taoyuan 320, Taiwan, R.O.C. (e-mail: jwshi@ee.ncu.edu.tw). J.-K. Sheu and W.-C. Lai are with the Institute of Electro-Optical Science and Engineering, National Cheng-Kung University, Tainan 701, Taiwan, R.O.C. (e-mail: jksheu@mail.ncku.edu.tw). C.-H. Kuo, C.-J. Tun, and T.-H. Yang are with the Department of Optics and Photonics, National Central University, Taoyuan 320, Taiwan, R.O.C. F.-C. Tsao is with the Department of Physics, National Central University, Taoyuan 320, Taiwan, R.O.C. Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LPT.2008.916966",
year = "2008",
month = mar,
day = "15",
doi = "10.1109/LPT.2008.916966",
language = "???core.languages.en_GB???",
volume = "20",
pages = "449--451",
journal = "IEEE Photonics Technology Letters",
issn = "1041-1135",
number = "6",
}