研究目的
Developing a bifacial solar cell with characteristics of double-side photon collection, transparent appearance, mechanical ?exibility, and facile processing.
研究成果
The bifacial ?exible PSCs afford comparable performance parameters to conventional references fabricated on the glass substrates. The devices can retain up to 92% of the original PCE after ?exing/relaxing at bending radii of 7.4 mm for 350 cycles. Our devices with characteristics of physical transparency, mechanical ?exibility, and stability can be integrated with other technologies for next-generation high-tech.
研究不足
The photochemical degradation is partially involved in the device operation. The performance of the device was relatively poor when light irradiates from the AgNW side.
1：Experimental Design and Method Selection:
The device was fully fabricated by a spin-coating technique.
2：Sample Selection and Data Sources:
The photoactive material used was P3HT:PCBM.
3：List of Experimental Equipment and Materials:
A layer of ZnO ?lm was spin-coated onto the ITO glass and PET substrates. A polymer solution composed of a mixture of P3HT and PCBM was used.
4：Experimental Procedures and Operational Workflow:
The prepared polymer solution was then spin-coated onto the ZnO ?lm to form a photoactive layer. A hole transport layer of PEDOT:PSS was deposited on the photoactive material by spin-coating approach. Finally, a diluted silver nanowire solution was spin-coated onto the PEDOT:PSS layer.
5：Data Analysis Methods:
The current density–voltage (J–V) characteristics of the ?nished PSCs were evaluated under irradiation intensity of 100 mW/cm2 from a calibrated solar simulator with an AM 1.5G ?lter.
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UV-vis spectrophotometer
V-630
JASCO
Used to measure the UV-visible absorption spectra.
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ZnO nanoparticles
Used as an electron transport layer in the solar cell.
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P3HT
Luminescence Technology Corp.
Used as an electron donor material in the photoactive layer.
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PCBM
Luminescence Technology Corp.
Used as an electron acceptor material in the photoactive layer.
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PEDOT:PSS
PH1000
Used as a hole transport layer in the solar cell.
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Ag nanowire
Used as a top electrode in the solar cell.
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ITO
Used as a bottom electrode in the solar cell.
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Solar simulator
Newport Inc.
Used to evaluate the current density–voltage (J–V) characteristics of the solar cells.
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