Improved lifetimes of organic solar cells with solution-processed molybdenum oxide anode-modifying layers

Ashish Garg, Shailendra Kumar Gupta, Jacek J. Jasieniak, Th. Birendra Singh, Scott E. Watkins

Research output: Contribution to journalArticleResearchpeer-review

9 Citations (Scopus)

Abstract

We report on the use and stability of solution-processed molybdenum oxide (sMoOx) thin films as anode-modifying layers to replace conventionally used poly(3,4-ethyldioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) layers in poly(3-hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester (P3HT/PC61BM) bulk heterojunction organic solar cells. Our results show that while as prepared devices using the two anode-modifying layers possess similar performances, the sMoOx devices exhibit a staggering 20-fold stability improvement in its performance half-life compared with PEDOT/PSS devices, 3400 h versus 150 h, respectively. A further comparison of the stability between encapsulated and unencapsulated devices demonstrates the necessity for protection from atmospheric moisture and oxygen but again highlights the lucrative nature of sMoOx as a protective anode-modifying layer compared with PEDOT/PSS even under ambient conditions.
Original languageEnglish
Pages (from-to)989-996
Number of pages8
JournalProgress in Photovoltaics: Research and Applications
Volume23
Issue number8
DOIs
Publication statusPublished - Aug 2015
Externally publishedYes

Cite this

Garg, Ashish ; Gupta, Shailendra Kumar ; Jasieniak, Jacek J. ; Singh, Th. Birendra ; Watkins, Scott E. / Improved lifetimes of organic solar cells with solution-processed molybdenum oxide anode-modifying layers. In: Progress in Photovoltaics: Research and Applications. 2015 ; Vol. 23, No. 8. pp. 989-996.
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Improved lifetimes of organic solar cells with solution-processed molybdenum oxide anode-modifying layers. / Garg, Ashish; Gupta, Shailendra Kumar; Jasieniak, Jacek J.; Singh, Th. Birendra; Watkins, Scott E.

In: Progress in Photovoltaics: Research and Applications, Vol. 23, No. 8, 08.2015, p. 989-996.

Research output: Contribution to journalArticleResearchpeer-review

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AB - We report on the use and stability of solution-processed molybdenum oxide (sMoOx) thin films as anode-modifying layers to replace conventionally used poly(3,4-ethyldioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) layers in poly(3-hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester (P3HT/PC61BM) bulk heterojunction organic solar cells. Our results show that while as prepared devices using the two anode-modifying layers possess similar performances, the sMoOx devices exhibit a staggering 20-fold stability improvement in its performance half-life compared with PEDOT/PSS devices, 3400 h versus 150 h, respectively. A further comparison of the stability between encapsulated and unencapsulated devices demonstrates the necessity for protection from atmospheric moisture and oxygen but again highlights the lucrative nature of sMoOx as a protective anode-modifying layer compared with PEDOT/PSS even under ambient conditions.

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