Photovoltaics: Past, Present, and Future

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Inverted Metamorphic Solar Cell • Creation of a fundamentally new technology path, the inverted lattice-mismatched (IMM) cell. This cell design resulted in the new 1 sun solar cell efficiency record (33.8%). Also, this technology allowed NREL to break the 40% AM1.5 photovoltaic conversion efficiency barrier under concentration! This technology shatters all records related to specific power (~3000 W/kg) (enabling for a host of PV spin-off applications, man portable energy scavenging, space power systems). • Remarkably rapid transfer of the technology to industry. RF Micro Devices, Emcore, Spectrolab, Microlink. • R&D 100 Award and the 2009 Federal Laboratory Consortium Award for Excellence in Technology Transfer.
Next Generation PV • Metamorphic Growth • Inverted Metamorphic Growth • 4, 5, … Junction Devices • Dilute Nitride Devices • Poly III-V • Mechanical Stacking • Optical Spectrum Splitting • Concentrator Designs • QM Bandgap Engineering • IBSC η from 30% to 40% and beyond? Emcore
Page 1 and 2: Photovoltaics: Past, Present, and F
Page 3 and 4: Solar Cell Fundamentals
Page 5 and 6: Solar Cell Fundamentals
Page 7 and 8: V 1 V 2 V 3 Multi-junction solar ce
Page 9 and 10: World Record PV Efficiencies NREL T
Page 11 and 12: • Solar Energy Research Institute
Page 13 and 14: PV Facilities at NREL Science & Tec
Page 15 and 16: 2015 Goals: Residential 8-10 ¢/kWh
Page 17 and 18: PV Opportunities in the U.S. •The
Page 19: Solar Energy Potential 3 TW Source:
Page 22 and 23: Size Matters
Page 24 and 25: Source: Energy Information Administ
Page 26 and 27: US PV Market Share
Page 28 and 29: Global PV Deployment
Page 30 and 31: Cost versus Production http://www.e
Page 32 and 33: Public data from SEC, analysts, etc
Page 34 and 35: Policy Driven Scenarios Source: U.S
Page 36 and 37: U.S. Production Trends Source: U.S.
Page 38 and 39: Cost Cost of of Materials Materials
Page 40 and 41: Sand Energy and Si-intensive wafers
Page 42 and 43: BIPV 42
Page 44 and 45: Sand HWCVD is best low-T scalable t
Page 48 and 49: 3 rd Generation Solar Cells Source:
Page 50 and 51: Working with the NCPV Incubator New

Photovoltaics: Past, Present, and Future

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