Conceived by researchers from Iran, the brand new conductive adhesive ink is made from polymethyl methacrylate (PMMA) and is used as an interlayer between the outlet transport layer of the cell and carbon foil. It is reported to make sure increased cell stability whereas additionally offering distinctive efficacy.
A gaggle of scientists led by Sharif University of Technology in Iran has developed a brand new conductive adhesive ink that can be utilized as an interfacial adhesive layer in perovskite photo voltaic cells.
“The adhesive ink is meant to enhance the energy and effectivity of the cell,” the corresponding creator of the analysis, Nima Taghavinia, stated. pv journal. “We have created a low-cost and easy course of that’s appropriate with large-area functions.”
The adhesive is made from polymethyl methacrylate (PMMA), which is a extensively used polymer as an alternative choice to glass in numerous industries primarily based on its low price, glorious mechanical, electrical, and optical properties, thermal and environmental stability, low weight, and excessive. mild transparency. It is used as an interfacial layer between the outlet transport layer (HTL) of the cell made from copper indium sulfide (CuInS2) nanoparticles and a prime carbon foil primarily based on extremely conductive carbon black (HCCB).
The adhesive is positioned in a cell composed of a substrate made from fluorine-doped tin oxide (FTO), an electron transport layer (ETL) primarily based on carbon-titanium dioxide (c/TiO2), a TiO2 mesoporous layer, the perovskite absorber, the HTL primarily based on CuInS2, and the highest carbon foil with HCCB.
The researchers famous that this cell configuration with out the brand new adhesive had beforehand confirmed unstable, because the carbon electrodes usually dislodged after the measurement.
“The conductive adhesive ink is dropped onto the carbon foil with an space of 0.27 cm2,” stated the researchers, referring to the adhesive deposition course of. “The carbon foil is then transferred to the ready FTO glass/c-TiO2/mp-TiO2/perovskite/CuInS2 stack in such a method that the adhesive ink is in touch with the HTL.”
Through a collection of assessments, the analysis crew discovered that PMMA is the important thing to attaining robust and dependable adhesion of the carbon foil to the cell. It additionally explains that the addition of CuInS2 nanoparticles to the ink makes the adhesive appropriate with the underlying HTL, with the CuInS2 nanoparticles contributing to the outlet switch mechanism.
“Our outcomes present that the addition of two% wt of HCCB nanoparticles within the PMMA/CIS combination with a ratio of 1:3 results in the best conductivity for the achieved adhesive interfacial layer, ensuing within the highest effectivity of 17.2%, which is similar to that of gold-based counterpart cells (18.2%),” stated the lecturers. “In addition, utilizing the proposed carbon-laminated electrode we achieved a long-term stability -on about 92% after 54 days of storage, which is about 17% enchancment in comparison with the steadiness of gold-based counterparts.”
Their findings are within the research”A conductive adhesive ink for carbon-laminated perovskite photo voltaic cells with improved sturdiness and excessive effectivity,” printed in Solar Energy.
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