http://www.rssboard.org/rss-specification 720 https://escholarship.org/uc/nobel_2014_nakamura/rss Recent eScholarship items from Shuji Nakamura, UC Santa Barbara (Nobel Prize in Physics, 2014) Sun, 20 Sep 2026 19:24:15 +0000 https://escholarship.org/uc/item/2g97m725 We report on the measurement of the lateral distribution of the junction current of an electrical biased p-n GaN diode by electron emission microscopy using a low-energy electron microscope. The vacuum level at the surface of the diode was lowered by deposition of cesium to achieve negative electron affinity, allowing overflow electrons at the surface of the biased diodes to be emitted and their spatial distribution imaged. The results were compared to the literature, and a good match with analytical solutions by Joyce and Wemple [J. Appl. Phys. 41, 3818 (1970)] was obtained. https://escholarship.org/uc/item/2g97m725 Mon, 12 Feb 2024 00:00:00 +0000 Ho, Wan Ying Johnson, Cameron W Tak, Tanay Sauty, Mylène Chow, Yi Chao Nakamura, Shuji https://orcid.org/0000-0001-6334-2428 Schmid, Andreas Peretti, Jacques Weisbuch, Claude Speck, James S