High PerformanceOrganic Solar Cells Fabricated UsingRecycled Transparent Conductive Substrates
Figshare documentation (Figshare (United Kingdom))(2020)
摘要
The
power conversion efficiency (PCE) of organic
solar cells (OSCs) has been gradually increasing over the past years,
but these emerging photovoltaic devices still suffer from relatively
short lifetimes. To promote circular economy and reduce costly electronic
materials wastes, we explore the possibility of recycling durable
zinc oxide coated indium tin oxide (ITO/ZnO) from nonfullerene OSCs
through sequential ultrasonication in a series of solvents followed
by thermal annealing. With the adequate cleaning sequence, the recycled
ITO/ZnO substrates produce PCEs of 8.65%, a value
comparable to the PCEs obtained with freshly prepared
substrates (8.73%). Our results also indicate that isopropanol gradually
removes the zinc oxide layer and should thus be avoided when attempting
multiple successive recycling of the same substrate. ITO/ZnO substrates
recycled 10 times with and without isopropanol yield PCEs of 5.14% and 7.93%, respectively. By optimizing the recycling procedure,
we introduce a simple strategy to considerably increase the lifecycle
of transparent electrode substrates employed in organic electronic
devices and decrease the amount of wastes from the electronic industry.
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关键词
solar cells,substrates
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