Date 2024-06-13 
Time 10:30 
Title Emerging inorganic thin film materials for photovoltaic applications 
■ 일시 : 2024년 06월 13일(목), 오전 10시 30분
■ 장소 : W1-1(신소재공학과_응용공학동), 이루자회의실(3405호)
■ 연사 :  Prof.  Edgardo Saucedo Silva (Universitat Politécnica de Catalunya (UPC))
■ 주제 : Emerging inorganic thin film materials for photovoltaic applications
■ 주관 : 신소재공학과 신병하 교수
■ Abstract : 
  There is an increasing interest in the development of novel thin film photovoltaic absorbers with exotic properties for advanced photovoltaic applications, including flexible devices, indoor photovoltaic energy generation, semitransparent/transparent and tandem solar cells. Among them, inorganic chalcogenides and chalco-halides are attracting a lot of attention thanks to their tunability in terms of physical/chemical properties, versatility in terms of synthesis/deposition methods and devices configuration, excellent stability, and competitive performance.
  This presentation will show an overview of the latest developments achieved in the Emerging Thin Film Photovoltaic Laboratory at the Polytechnic University of Catalonia (Barcelona, Spain), in the synthesis and photovoltaic application of emerging chalcogenide and chalco-halide materials. The presentation will start with the most recent progresses on kesterite (Cu2ZnSn(S,Se)4) solar cells, with a detailed description of molecular inks route, and the strategies to be followed to achieve conversion efficiencies at the 15% level. Then, emerging van der Waals materials will be introduced, including the synthesis of Sb2Se3 and novel chalcogenides based on the system (Sb,Bi)(S,Se)(Br,I). The development of a high-pressure annealing method for the synthesis of this family of materials will be presented, and the most relevant physical/chemical properties as well as first devices will be shown and discussed.
  Following, key developments on semi-transparent Selenium based solar cells will be presented, showing the pathways to fabricate efficient devices by using evaporation techniques. Finally, a novel type of silver chalco-halide materials, the so-called anti-perovskites will be introduced. The main characteristics of these emerging materials, their synthesis by chemical routes, the most interesting physical/chemical properties, and the first working devices using anti-perovskites, will be described in detail. The presentation will finish with a personal point of view of the future of inorganic thin film photovoltaic materials for energy applications.