Plastic microgroove solar cells using CuInSe2 nanocrystals

Douglas R. Pernik, Marlene Gutierrez, Cherrelle Thomas, Vikas Reddy Voggu, Yixuan Yu, Joel Van Embden, Alexander J. Topping, Jacek J. Jasieniak, David A. Vanden Bout, Raymond Lewandowski, Brian A. Korgel

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9 Citations (Scopus)


Plastic photovoltaic devices (PVs) were fabricated by spray-depositing copper indium diselenide (CuInSe2) nanocrystals into micrometer-scale groove features patterned into polyethylene terephthalate (PET) substrates. Each groove has sidewall coatings of Al/CdS and Au and performs as an individual solar cell. These PV groove features can be linked electrically in series to achieve high voltages. For example, cascades of up to 15 grooves have been made with open-circuit voltages of up to 5.8 V. On the basis of the groove geometry, the power conversion efficiencies (PCEs) of the devices reached as high as 2.2%. Using the active area and photovoltaic response of devices determined from light-beam-induced current (LBIC) and photoreflectivity measurements gave PCE values as high as 4.4%.

Original languageEnglish
Pages (from-to)1021-1027
Number of pages7
JournalACS Energy Letters
Issue number5
Publication statusPublished - 11 Nov 2016

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