Junction and energy band on novel semiconductor-based fuel cells
Enyi Hu,
Zheng Jiang,
Liangdong Fan,
Manish Singh,
Faze Wang,
Rizwan Raza,
Muhammad Sajid,
Jun Wang,
Jung-Sik Kim,
Bin Zhu
Affiliations
Enyi Hu
Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/ Energy Storage Joint Research Center, School of Energy & Environment, Southeast University, Nanjing 210096, China
Zheng Jiang
Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/ Energy Storage Joint Research Center, School of Energy & Environment, Southeast University, Nanjing 210096, China
Liangdong Fan
Department of New Energy Science and Technology, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, China; Corresponding author
Manish Singh
Department of Chemistry, Division for Pure and Applied Biochemistry, Lund University, Naturvetarvägen 14, 22362 Lund, Sweden
Faze Wang
Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/ Energy Storage Joint Research Center, School of Energy & Environment, Southeast University, Nanjing 210096, China
Rizwan Raza
Department of Physics, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Department of Chemical and Biological Engineering, Chalmers University of technology, Kemigarden 4, S-41296 Goteborg, Sweden; Corresponding author
Muhammad Sajid
Department of Physics, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
Jun Wang
Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/ Energy Storage Joint Research Center, School of Energy & Environment, Southeast University, Nanjing 210096, China
Jung-Sik Kim
Department of Aero & Auto Engineering, Loughborough University, Loughborough LE11 3TU, UK; Corresponding author
Bin Zhu
Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/ Energy Storage Joint Research Center, School of Energy & Environment, Southeast University, Nanjing 210096, China; Department of Aero & Auto Engineering, Loughborough University, Loughborough LE11 3TU, UK; Corresponding author
Summary: Fuel cells are highly efficient and green power sources. The typical membrane electrode assembly is necessary for common electrochemical devices. Recent research and development in solid oxide fuel cells have opened up many new opportunities based on the semiconductor or its heterostructure materials. Semiconductor-based fuel cells (SBFCs) realize the fuel cell functionality in a much more straightforward way. This work aims to discuss new strategies and scientific principles of SBFCs by reviewing various novel junction types/interfaces, i.e., bulk and planar p-n junction, Schottky junction, and n-i type interface contact. New designing methodologies of SBFCs from energy band/alignment and built-in electric field (BIEF), which block the internal electronic transport while assisting interfacial superionic transport and subsequently enhance device performance, are comprehensively reviewed. This work highlights the recent advances of SBFCs and provides new methodology and understanding with significant importance for both fundamental and applied R&D on new-generation fuel cell materials and technologies.
