1. Materials and Technologies for Making Perovskite-based Solar Cell
Lin Yuanjing

2. Background
Perovskite materials for solar cell
Perovskite solar cell fabrication technology
Conclusion

3. Breakthrough of Perovskite Solar Cells
Amorphous Silicon Solar Cell
2014：19.3%
Dye-sensitized Solar Cells
Organic Photovoltaic

4. Classification of Perovskite Materials

5. Description of Organic-Inorganic Perovskite: ABX3
Materials:
-CH3NH3PbI3
-CH3NH3PbI3-XClX,
-CH3NH3PbI3-XBrX
Role of doping (Cl, Br):
- Increase diffusion length and thickness
- Tune the bandgap and absorption
Challenges:
Increase the thickness:
recombination of electron and hole
Decrease the thickness
less absorbtion
Cubic perovskite crystal structure
A: organic B:Pb, Sn X: halogen ion(I, Cl, Br)

6. Architecture of Perovskite Solar Cells
General perovskite solar cell structure
Vacuum energy level

7. Hole Transfer Layer: Spiro-MeOTAD, PEDOT: PSS
Absorber Layer: Perovskite materials
Electron Transfer Layer: Al2O3, ZrO2, TiO2, ZnO, PCBM
Transparent Conducting Oxides Layer: ITO, FTO
Electrode: Ag, Au, Al Au
HTL
TiO2+Perovskite
FTO
Glass

8. Fabrication Technology
Solution Processes (Planar and mesostructured layer ) :
One-Step Precursor Deposition (OSPD)--simplicity
Sequential Deposition Method (SDM)--better control of perovskite morphology
Evaporation Processes (Planar):
Dual-Source Vapor Deposition (DSVD)-- extremely uniform film
Vapor-Assisted Solution Process (VASP)-- high-quality perovskite film
One-Step Precursor Deposition (OSPD). (b) Sequential Deposition Method (SDM).  
(c) Dual-Source Vapor Deposition (DSVD (d) Vapor-Assisted Solution Process (VASP)

9. Conclusion Advantages Ease of fabrication Strong solar absorption
Low non-radiative carrier recombination rates
Compatible with other solar cells
Toxicity issues--fabrication, deployment, disposal
Degradation--moisture, ultraviolet radiation
Commercial Challenge

10. Thank You !