naa a22 4500 510804063 CHVBK 20180411083408.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11664-012-2427-5 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2427-5 Polarity Determination of Polarity-Controlled ZnO Films Using Photoresponse Characteristics [Elektronische Daten] [Jinsub Park, Takafumi Yao] We report on the use of the photoresponse characteristics of polarity- controlled ZnO films for determining ZnO polarity. ZnO films were grown on CrN and Cr2O3 buffer layers in order to produce Zn- and O-polar films, respectively, and Ti/Au metal contacts were formed. All samples showed Ohmic behavior, but the Zn-polar ZnO film showed lower contact resistance than the O-polar ZnO film. The O-polar ZnO film showed higher photocurrent and longer decay time than the Zn-polar film by photoresponse measurement. These phenomena can be explained by the expansion of the depletion layer into the bulk ZnO surface. Compared with current methods, this method of determination of the polarity of ZnO films through the measurement of photoresponse characteristics is very easy and simple to implement. TMS, 2013 ZnO nationallicence polarity determination nationallicence photocurrent nationallicence Park Jinsub Department of Electronic Engineering, Hanyang University, 133-791, Seoul, South Korea aut Yao Takafumi Center for Interdisciplinary Research, Tohoku University, Sendai, Japan aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/4(2013-04-01), 716-719 0361-5235 42:4<716 2013 42 11664 https://doi.org/10.1007/s11664-012-2427-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2427-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Jinsub Department of Electronic Engineering, Hanyang University, 133-791, Seoul, South Korea aut NATIONALLICENCE 700 1- Yao Takafumi Center for Interdisciplinary Research, Tohoku University, Sendai, Japan aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/4(2013-04-01), 716-719 0361-5235 42:4<716 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer