Prof. Dr. Nguyen Van Hieu was born in 1972 in Thua Thien Hue. He received a PhD degree from University of Twente, The Netherlands in 2004. Since then, he has worked for the International Training Institute of Materials Science (ITIMS), Hanoi University of Technology (HUST). He was appointed Associate Professor and Professor in 2009 and 2015. He has successfully built a strong research group on nanosensors (www.iSensors.vn) at ITIMS, HUST. So far, he and his team have published more than 100 ISI papers. His main research focus is to develop new types of nanomaterials to apply gas sensors and biosensors.
Nguyen Duc Khoang, Do Dang Trung, Nguyen Van Duy, Nguyen Duc Hoa, Nguyen Van Hieu*, 2012. Design of SnO2/ZnO hierar- chical nanostructures for enhanced ethanol gas-sensing perfor- mance, Sensors and Actuators B 174, 594-601.
The work was published in a journal ranked fourth out of 133 of SCImago’s rankings in 2017. The magazine has an H-index of 151 and a 5-year impact index (2017) is 4.85. From 2012 to 2017, the work was cited about 114 times (Google Scholar). In this work, the author and co-workers have developed a simple, easy-to-control and new method of fabricating hierarchical nanostructures that can be expanded to make many other types of hierarchical nanostructures based on one-dimensional nanostructures. These hierarchical nanostructures, in addition to their own large surface area, also have a high crystal orientation compared to conventional nano-porous materials, while the formation of heterogeneous exposures contributes significantly to gas sensitivity of materials. The creation of many new hierarchical nanostructures will expand the applicability of traditional one-dimensional nanostructures, not only in the field of gas sensors but also in other areas such as the field. photocatalyst, nanoelectronics, energy batteries and so on.