Highly durable inverted-type organic solar cell using amorphous titanium oxide as electron collection electrode inserted between ITO and organic layer
By T. Kuwabara, Nakayama Taketoshi, K. Uozumi, T. Yamaguchi, Kohshin Takahashi. 2008
169 citations recorded by the source corpus.
An indium tin oxide/titanium oxide/[6,6]-phenyl C61 butyric acid methyl ester:regioregular poly(3-hexylthiophene)/poly(3,4-ethylenedioxylenethiophene):poly(4-styrene sulfonic acid)/Au type organic solar cell (ITO/TiOx/PCBM:P3HT/PEDOT:PSS/Au) with 1 cm2 active area, which is called “inverted-type solar cell”, was developed using an ITO/amorphous titanium oxide (TiOx) electrode prepared by a sol–gel technique instead of a low functional electrode such as Al. The power conversion efficiency (η) of 2.47% was obtained by irradiating AM 1.5G-100 mW cm−2 simulated sunlight. We found that a photoconduction of TiOx by irradiating UV light containing slightly in the simulated sunlight was required to drive this solar cell. The device durability in an ambient atmosphere was maintained for more than 20 h under continuous light irradiation. Further, when the air-stable device was covered by a glass plate with a water getter sheet which was coated by an epoxy-UV resin as sealing material, the durability was still higher and over 96% of relative efficiency was observed even after continuous light irradiation for 120 h.
Subfields: Electrical and Electronic Engineering, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/0b10d52621f460ce40b39d4611131d3fcd02764f
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Citations in the corpus
- Recent development of the inverted configuration organic solar cells (2011, methodology): “To improve the interface stability and charge transport/collection, an alternative approach is to adopt inverted configuration [81,82], where ITO serves as the cathode and a high work function (HWF) metal as the anode.”