Introduction to Solar Energy Photovoltaics Week 1.3 Arno Smets - - PowerPoint PPT Presentation

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Introduction to Solar Energy Photovoltaics Week 1.3 Arno Smets - - PowerPoint PPT Presentation

Oct 28, 2023 13 likes •177 views

Introduction to Solar Energy Photovoltaics Week 1.3 Arno Smets Solar cell operation front contact n-type silicon - + + - + - pn junction +- back contact p-type Solar cell operation Front contact n-type c-Si n-type c-Si depletion

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SLIDE 1

Arno Smets

Introduction to Solar Energy

Photovoltaics

Week 1.3

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SLIDE 2

Solar cell operation

+

  • +-

+ - +

  • front contact

n-type silicon pn junction p-type back contact

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Solar cell operation

n-type c-Si n-type c-Si depletion region depletion region p++-type Si back contact p-type c-Si absorber membrane Front contact

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Solar cell operation

n-type c-Si n-type c-Si depletion region depletion region p++-type Si back contact p-type c-Si absorber membrane Front contact

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SLIDE 5

Solar cell operation

n-type c-Si n-type c-Si depletion region depletion region p++-type Si back contact p-type c-Si absorber membrane Front contact

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SLIDE 6

Solar cell operation

n-type c-Si n-type c-Si depletion region depletion region p++-type Si back contact p-type c-Si absorber membrane Front contact

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Present limit 500 400 300 200 100 Cost [US$/m2] US$ 3.5/Wp US$ 1.0/Wp US$ 0.5/Wp US$ 0.2/Wp US$ 0.1/Wp II III 100 Efficiency [%] 80 60 40 20 Wp/m² I

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  • xide

p+ “inverted” pyramids finger thin oxide ( 200 ) p+ p+ double layer antireflection coating n+ n

Source: University of New South Wales, Australia

Wafer-based crystalline silicon

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Glass superstrate TCO Intrinsic a-Si:H n-type Metal electrode p-type

Superstrate solar cell structure

Thin-film silicon

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Glass CdS (n-type) CdTe (p-type) Metal contact TCO (ZnO:Al)

Source: http://www.flickr.com/photos/ferriday/5815935109/

Cadmium Telluride

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NiA1 TCO (ZnO:Al) CdS (n-type) CuInSe2

(p-type)

Mo Glass MgF2 TCO (intrinsic ZnO)

CIGS

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SLIDE 12

Source: Fraunhofer ISE Source: Solarmer Energy

Organic/Dye sensitized Solar Cells

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III – V PV Technology

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PV technologies

Down-convertor Up-convertor p n Rear contact Quantum dots Front contact a IBC Emerging and novel technologies

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Thank you for your attention!