Perovskite is now considered as wonder material, which has revolutionized the photovoltaic field. The name perovskite was given in honour of Russian mineralogist L. A. Perovski and was first identified by Gustav Rose in 1839.

1. Innovative technology solutions for
sustainability
Perovskite solar cells: new paradigm in thin film PV
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ABENGOA
RESEARCH

2. 1st generation
Silicon
2nd generation
CdTe, CIGS,
Kesterites
Multi-crystalline
Efficiency, cost Low cost
Stability Abundant feedstock's
Hybrid
Photovoltaic evolution: voyage through time
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*Images from world wide web
Single -crystalline Nano-crystalline
3rd generation
Dye sensitized solar cells, Organic solar cells,
Quantum dots, Perovskites

3. 3
PV technology current status

4. 4
High Performance perovskite solar cells

5. Angew. Chem. Int. Ed. 2014, 53, 2812-2824
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Deposition of layers: process identification
Process for lab cells
Identification of
process for module
fabrication
*Processing instrument from Coatema

7. 20A_mix_new_q07
Cross sectional SEM
images of device
showing different
layers
Optimizing the perfect crystal for perovskites solar cells
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8. Development focus: the golden triangle
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- Cost
- Performance
- Stability

9. 9
Pilot processes: deposition on large areas
Current Status
Layer Alternative Process Status
FTO Sputtering Ok
TiO2 Compact
Sputtering Ok
Spray OK
TiO2 Mesoporous
Spray Ok
Slot-Dye Ok
Perovskites
Planar
VTD On going
Electro-spray On going
Mesoporous
Dip-coating Next
Slot-Die Next
HTM
Doctor-blade Next
Electro-spray Next
Slot-Die Next
Contact Ag Screen Printing Next

10. Optimum barrier layer for encapsulation
• Low water vapor & oxygen transport rate - the key parameter [g/(m2day]
• High optical transmissivity
• UV stability & cost effectiveness
• Mechanical robustness
• Flexibility but with glass like properties
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Packaging
Water vapor transmission rate (g m-2 d-1)
Rechargeable
Alkali ion Batteries
Quantum
Dots
Inorganic PV
Display /
Lighting Application
New
generation PV

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Current PV market
• In the initial phase, perovskite solar cells is targeted to capture thin film PV market
• Perovskite solar cells are very competitive to CdTe (currently which has lowest LCOE)
• NREL calculated cost of ownership for perovskite is <0.34 $/Wp, as compared to 0.45 $/Wp
for CdTe.
• Utilizes low quantity of earth abundant materials and has simple processing requirements
*Sources: World wide web