4、Working department:State Key Laboratory of Silicate Materials for Architectures
三、Education experience :
B.S. in Chemistry, Shaanxi Normal University, China, 2005
PhD in Chemistry, Institute of Chemistry, Chinese Academy of Sciences, China, 2010
四、Working ecperience:
2010-2011:Xi’An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences,China, Assistant Professor
2011-2014:Monash University, Australia, Research Fellow
五、Research field (no more than 3)
Due to the gradual depletion of fossil fuels and the increasing energy demand to support the current model of economic growth,mankind is facing a global energy problem. Amongst the number of alternative resources, renewable energies are rapidly becoming the leading solution to fulfill the growing needs of power sources. At present, solar energy is considered the most promising renewable resource. A simple calculation leads self-evidently to the conclusion that covering only around 0.1% of the earth’s surface by means of energy conversion devices having an efficiency of about 10% would satisfy the present global energy needs. These encouraging numbers are inducing the scientific community to make even greater efforts towards the direction of improving solar energy conversion technologies as well as proposing new intriguing solutions.
Dye-sensitized solar cells
Dye-sensitized solar cells (DSCs) have been intensely studied as promising renewable energy technology with the potential to achieve high energy conversion efficiencies at low cost. DSCs typically consist of a sensitized mesoporous semiconductor film on a conductive substrate as working electrode and a platinized counter electrode, bridged by an electrolyte film containing the reduced and oxidized forms of the redox mediator. The latter mediates charge transport between the two electrodes and is also responsible for the regeneration of the photooxidized dye, following electron injection into the TiO2. The application of a cobalt(II)/(III) tris(bipyridine) based electrolyte has recently resulted in a benchmark efficiency of >12%. This result has accelerated the transition to non-iodide based electrolytes, which are less corrosive and exhibit weaker absorption of visible light. Transition metal, such as cobalt, iron and manganese based redox couple have been successfully developed and promising efficiencies were obtained in both n-type and p-type DSCs. By solidifying the electrolyte, the stability of the devices can be further improved. More mportantly, the replacement of organic solvent in the electrolyte with water paves the way for environmentally friendly devices, which keeps us in the leading role in this area worldwide. These breakthroughs were published on Energy & Environ.Sci. and Angew. Chem. In. Ed., and one of them was selected as the front-cover and hot article.
Perovskite solar cells
Alkylammonium lead(II) halides ([CH3NH3PbX3]n) have been shown to be efficient photovoltaic materials with excellent light harvesting, high carrier mobility, and facile solution processability. A rapid growth of intensive research into this photovoltaic technology since 2012 has resulted in a certified energy conversion efficiency over 20% and the topic has been selected as one of the top 10 breakthroughs of 2013 as announced by the journal Science.These organic– inorganic lead(II) complexes crystallize in the well-known perovskite structure with general formula ABX3, where A is an organic cation, Bis a metal, and X is a halide. A very thin perovskite film (~ 300 nm) is sufficient enough for highly-performed perovskite solar cell due to its broad light absorption range from 300 to 800 nm and a high molar extinction coefficient. Materials selection and process optimization are essential to high performance of perovskite solar cells with long-term stability. This new type of solar cells with low cost and easy fabrication is the key part of the building integrated photovoltaics (BIPV).
六、Research project(no more than 5)
The effect of pH on the performance of p-type dye-sensitized solar cells. National Science Fund of China, 0.25 million. Jan. 2016- Dec. 2018. Project Leader
The application of cobalt ethylenediamine into p-type dye-sensitized solar cells. 5,0000 CNY, Wuhan University of Technology, Jan. 2015-Dec. 2016. Project Leader
The preparation, formation and application of TiO2-based particles. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Jan.2015- Dec. 2015, Project Leader
七、Representative papers and works
1. Wanchun Xiang, Fuzhi Huang,Yi-Bing Cheng, Udo Bach and Leone Spiccia, Energy Environ. Sci., 2013, 6,121-127. (front cover and hot article)
2. Wanchun Xiang, Akhil Gupta,Muhammad Kalim Kashif, Ante Bilic,Richard A. Evans, Leone Spicciaand Udo Bach, ChemSusChem, 2013, 6,256-260.
2、Office:Room 600, South Building, State Key Laboratory of Silicate Materials for Architectures Wuhan University of Technology No.122 Luoshi Rd, Wuhan, China