This content has been downloaded from IOPscience. Please scroll down to see the full text. Download details: IP Address: 149.150.51.237 This content was downloaded on 04/04/2015 at 19:16 Please note that terms and conditions apply. 276 nm Substrate-Free Flip-Chip AlGaN Light-Emitting Diodes View the table of contents for this issue, or go to the journal homepage for more 2011 Appl. Phys. Express 4 032102 (http://iopscience.iop.org/1882-0786/4/3/032102) Home Search Collections Journals About Contact us My IOPscience