Download (PDF 838 KB): https://research.fs.usda.gov/download/treesearch/45671.pdf
Abstract
We report on efficient solar cells on recyclable cellulose nanocrystal (CNC) substrates with a new device structure wherein polyethylenimine-modified Ag is used as the bottom electron-collecting electrode and high-conductivity poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS, PH1000) is used as the semitransparent top holecollecting electrode. The PEDOT:PSS top electrode is deposited by a film-transfer lamination technique. This dry process avoids swelling damage to the CNC substrate, which is observed when PEDOT:PSS is directly spin-coated from an aqueous solution. Solar cells on recyclable CNC substrates exhibit a maximum power conversion efficiency of 4.0% with a large fill factor of 0.64 ± 0.02 when illuminated through the top semitransparent PEDOT:PSS electrode. The performance of solar cells on CNC substrates is comparable to that of reference solar cells on polyethersulfone substrates.
Citation
Zhou, Yinhua; Khan, Talha M.; Liu, Jen-Chieh; Fuentes-Hernandez, Canek; Shim, Jae Won; Najafabadi, Ehsan; Youngblood, Jeffrey P.; Moon, Robert J.; Kippelen, Bernard. 2014. Efficient recyclable organic solar cells on cellulose nanocrystal substrates with a conducting polymer top electrode deposited by film-transfer lamination. ORGANIC ELECTRONICS, Volume 15, 2014; pp. 661-666.