Presenter：Mahmoud A. Khalifa, Mansoura University in Egypt
Topic：Photoelectrochromic Devices from Concept to Integrated Designs Toward Self-Powered Smart Energy-Efficient Windows
Time：11:00 AM, March 23rd (Monday)
Location：909-B
Abstract:：
Photoelectrochromic devices (PECDs) function as self-powered smart windows by dynamically modulating optical transmittance and minimizing heat gain, thereby lowering energy load for heating, ventilating, and air conditioning (HVAC) systems. Simultaneously, the integrated photovoltaic (PV) component enables solar energy harvesting, making PECDs particularly attractive in building-integrated photovoltaics (BIPVs). Thus, PECDs offer a promising and feasible approach for decreasing HVAC energy loads by adapting sunlight entering the building with controlling visual comfort and generating energy as well.
In the talk, we will first present the principal working mechanism and performance factors of PECDs. We then follow with a classification and discussion of different PECD architectures. Particularly, we classify them into six categories: (i) separated, (ii) patterned, (iii) combined, (iv) partly covered, (v) hybrid, and (vi) other emerging PECDs with presenting recent progress for each category. Finally, we address existing challenges with perspectives toward multifunctional PECDs capable of smart energy-efficient windows and sustainable BIPVs.
Biography：
Mahmoud A. Khalifa obtained his MSc degree under the supervision of Prof. A. El-Shaer from Mansoura University, Egypt. He earned his PhD degree under the supervision of Prof. Chunye Xu from the University of Science and Technology of China (USTC). He then worked as a postdoctoral researcher with Prof. Zhigao Sheng in Hefei Institutes of Physical Science of the Chinese Academy of Sciences (CAS). He is now with Prof. William W. Yu at the University of Jinan. He also holds a lecturer/assistant professor position in Egypt at Mansoura University.
He was awarded the CAS-The World Academy of Sciences (CAS-TWAS) President’s Fellowship in 2018 to do a PhD at USTC (among the world's top 100 universities). He was granted the Alliance of National and International Science Organizations (ANSO) Visiting Scientist Fellowship in the High Magnetic Field Laboratory of CAS in 2024. His research interests include functional nanomaterials, TMDs, TMOs, solar energy conversion, electrochromic, and photoelectrochromic devices. He has published more than 20 articles in SCI journals: As a first author in Chem. Eng. J., Sol. Energy Mater. Sol. Cell., Adv. Mater. Interfaces, etc. As a co-author in ACS Appl. Mater. Interfaces, Adv. Opt. Mater. , Sol. Energy, etc. As a corresponding author in J. Lumin, Phys. Scr., Mater. Lett. Also, 2 Journal Covers for Adv. Mater. Interfaces and Langmuir.
Contact：Prof. Sun Baoquan