The recent progress of metal oxide semiconductors and their potential applications in fields such as diodes, transistors, gas sensors, solar cells, photodetectors, and memory devices are reviewed and discussed in detail. Zusatztext

Prof. Zhigang Zang received his PhD degree from Kyushu University in 2011. He joined School of Optoelectronic Engineering, Chongqing University as a professor since 2014. His research interests mainly focus on the synthesis of II-VI, III-V semiconductor materials and their applications in solar cells, photodetectors and light emitting diodes. He has published more than 150 papers and has been selected as national important talent plan. Dr. Wensi Cai received her PhD degree from University of Manchester in 2019. She joined Chongqing University as a postdoc researcher since 2020. Her research interests mainly focus on oxide semiconductor- and perovskite-based electron devices. Zhou Yong, Ph.D., associate professor, joined the School of Optoelectronic Engineering of Chongqing University in June 2015. At present, the main research direction is to study the preparation of molecular gas sensors for monitoring of the environment, human breathing gas, national defense and anti-terrorism, public security, and industrial production.