Advancing beyond current generation dye-sensitized solar cells
Dye-sensitized solar cells
description
Transcript of Dye-sensitized solar cells
UNIVERSITY OF JYVÄSKYLÄ
Dye-sensitized solar cells Jouko Korppi-TommolaJani KallioinenPasi MyllyperkiöHenriette Santa-Nokki
UNIVERSITY OF JYVÄSKYLÄ
Photoactive electrode:Ruthenium dye-sensitized TiO2 film
Spread TiO2 PressCut & Cleansubstrates
Other components
Hotmelt frame
Electrolyte
Sensitization
Assembly
DSSC
Counter electrodePlatinized conductive nanoparticles (Pt-SnO2:Sb)
SpreadPt-SnO2:Sb Press
Cut & Cleansubstrates
Preparation scheme for DSSC on conductive plastics
UNIVERSITY OF JYVÄSKYLÄ
Dynamic press
TiO2
Cond. substrate
Laboratory paper calender
Pressure
Metal plate
Cond. substrate
TiO2
Press plate
Static press
Hydraulic press
Pressing of electrode materials
UNIVERSITY OF JYVÄSKYLÄExamples of studied issues:
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.70.00
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Current
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Voltage [V]
Spreading methods• Control coater• Film applicator• Gravure printing
Composition of the pastes• Viscosity (solid content, solvent)• Additives (cellulose)
Film thicknesses• TiO2
• Pt-ATO
Electrolyte• Solid, gel or liquid
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.70.0
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Current
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-2
]
Voltage [V]
UNIVERSITY OF JYVÄSKYLÄ
Dye-sensitized TiO2 stripeson ITO-PET
Electrochromic cellson ITO-PET
UNIVERSITY OF JYVÄSKYLÄ
Research on solar collector efficiency
Vaajakoski research laboratory
Flat plate, vacuum, black liquid, black rubber collectors
UNIVERSITY OF JYVÄSKYLÄUiniversity of JyväskyläBioEnv., Phys, Chem, Math-Stat, , Soc. S andEcon.
Solar hear collector system
- Storage tanks, 60 l, 500 l, 1000 l- Transfer liquid volume 20 l- Circulation started at T> 5 oC- Six T detectors, flow meter- Sampling every minute 1 min
Storage tank VLM Flex 500
Tx 2003-3 (6 m2 flat plate collector)
p
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°C
T 1 (collector output)
T 2 (storage tank)
T 3 (outside temperature)
T 4 (collector input)
T 5 (storage tank top)
T 6 (storage tank bottom)
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F 9 (flow meter)
UNIVERSITY OF JYVÄSKYLÄ
ABC: Aurinkolämpökeräimet (arvio)
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Viitasaari ABC service station solar heat collectors
Total heat production 2005ca. 12 500 kWhProduction most efficient in the spring, snow, no leaves
TiNOx coatingNet area 43 m2
Power 32 kWp
Tilt angle 35o
Facing South
Monthly and cumulative heat production
UNIVERSITY OF JYVÄSKYLÄ
Saarijärvi school Center PV-system, 6 kWp
New commercial solutionHIT (Heterojunction with Intrinsic Thin layer)
Manufacturer gives 16,5% efficiency
UNIVERSITY OF JYVÄSKYLÄ
System discription
Sanyo HIT panel, 6 kWp
-Panels 1443*798*35 mm, 66 cells/panel, -33 panels, in three groups-Tilt angle 40 degrees, facing south-Two Fronius (IG60 and IG15) DC-AC inverters-Connected directly to school grid-Davis weather station, solar radiation, T, wind speed
HIT panels have large dEoc/dT = -116 mV/oC
Suits well toNothern climate !!!
UNIVERSITY OF JYVÄSKYLÄ
AC
pow
er
Date
Saarijärvi school, Sanyo HIT panel, 6 kWp, Oct - Nov 2005
Power production
UNIVERSITY OF JYVÄSKYLÄ ABC Viitasaari: Aurinkosähköpaneelit
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2005-02-102005-02-242005-03-102005-03-242005-04-072005-04-212005-05-052005-05-192005-06-022005-06-162005-06-302005-07-142005-07-282005-08-112005-08-252005-09-082005-09-222005-10-06
Sähköntuotanto [kWh/vrk]
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ABC Viitasaari: Aurinkosähköpaneelit
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Kokonaistuotanto [MWh]
Viitasaari ABCservice stationcefetria PVtearraceroof
94 m2 amorphous silicon Tilt angle 5o, facing south, 5 kWp
Total production3200 kWh in 2005
Daily production 2005
Monthly production 2005