perovskite solar cells: new paradigm in thin film pv
TRANSCRIPT
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Innovative technology solutions for sustainability
Perovskite solar cells: new paradigm in thin film PV
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ABENGOA
RESEARCH
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1st generation Silicon
2nd generation CdTe, CIGS, Kesterites
Multi-crystalline
Efficiency, cost Low cost
Stability Abundant feedstock's Hybrid
Photovoltaic evolution: voyage through time
2 *Images from world wide web
Single -crystalline Nano-crystalline
3rd generation Dye sensitized solar cells, Organic solar cells, Quantum dots, Perovskites
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PV technology current status
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High Performance perovskite solar cells
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Angew. Chem. Int. Ed. 2014, 53, 2812-2824
h
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Deposition of layers: process identification
Process for lab cells
Identification of process for module fabrication
*Processing instrument from Coatema
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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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Development focus: the golden triangle
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- Cost - Performance - Stability
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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
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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