InGaN as a Substrate for AC Photoelectrochemical Imaging

Autor:	Bo Zhou, Anirban Das, Menno J. Kappers, Rachel A. Oliver, Colin J. Humphreys, Steffi Krause
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	photoelectrochemistry ingan/gan epilayer cell imaging light-activated electrochemistry light-addressable potentiometric sensor Chemical technology TP1-1185
Zdroj:	Sensors, Vol 19, Iss 20, p 4386 (2019)
Druh dokumentu:	article
ISSN:	1424-8220
DOI:	10.3390/s19204386
Popis:	AC photoelectrochemical imaging at electrolyte−semiconductor interfaces provides spatially resolved information such as surface potentials, ion concentrations and electrical impedance. In this work, thin films of InGaN/GaN were used successfully for AC photoelectrochemical imaging, and experimentally shown to generate a considerable photocurrent under illumination with a 405 nm modulated diode laser at comparatively high frequencies and low applied DC potentials, making this a promising substrate for bioimaging applications. Linear sweep voltammetry showed negligible dark currents. The imaging capabilities of the sensor substrate were demonstrated with a model system and showed a lateral resolution of 7 microns.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/9c13b59d436040e5ada0c300f0b845c5 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.