**About the Editors**

#### **Prof. Dr. Ya Yang**

Ya Yang has developed coupled nanoenergy materials and devices for next-generation energy-scavenging technology. He has published a book and over 200 SCI papers, which have been cited over 17,000 times with an H-index of 76 (Web of Science). He obtained the runner-up prize of the National Natural Science Foundation of China as a fourth author in 2018. Moreover, he has held five international conferences and delivered over 50 invited talks. He is the Editor-in-Chief of Nanoenergy Advances. His research interests include ferroelectric materials and devices, hybridized and coupled nanogenerators, ferro-pyro-phototronic devices and thermo-phototronic devices.

#### **Prof. Dr. Zhong Lin Wang**

Dr. Zhong Lin (Z.L.) Wang (US citizen) received his Ph.D. in Physics from Arizona State University in 1987. He served as a Visiting Lecturer in SUNY (1987–1988), Stony Brook, as a research fellow at the Cavendish Laboratory in Cambridge (England) (1988–1989), Oak Ridge National Laboratory (1989–1993) and at the National Institute of Standards and Technology (1993–1995) before joining Georgia Tech as a faculty member in 1995. He is the Hightower Chair in Materials Science and Engineering and Regents' Professor at Georgia Tech. His research interests include nanogenerators and self-powered nanosystems, piezotronics for smart systems, hybrid cells for energy harvesting, piezo-phototronics for energy science and optoelectronics.
