Low-Temperature, Solution-Processed MoOx for Efficient and Stable Organic Solar Cells

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• 作者：Kirill Zilberberg ; Houssem Gharbi ; Andreas Behrendt ; Sara Trost ; Thomas Riedl
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2012
• 出版时间：March 28, 2012
• 年：2012
• 卷：4
• 期：3
• 页码：1164-1168
• 全文大小：281K
• 年卷期：v.4,no.3(March 28, 2012)
• ISSN：1944-8252

文摘

Sol鈥揼el processed MoO_x (sMoO_x) hole-extraction layers for organic solar cells are reported. A Bis(2,4-pentanedionato)molybdenum(VI)dioxide/isopropanol solution is used and only a moderate thermal post deposition treatment at 150 掳C in N₂ ambient is required to achieve sMoO_x layers with a high work-function of 5.3 eV. We demonstrate that in P3HT:PC₆₀BM organic solar cells (OSCs) our sMoO_x layers lead to a high filling factor of about 65% and an efficiency of 3.3% comparable to that of reference devices with thermally evaporated MoO₃ layers (eMoO₃). At the same time, a substantially improved stability of the OSCs compared to devices using a PEDOT:PSS hole extraction layer is evidenced.

Keywords:

organic solar cell; high work-function materials; sol鈭抔el metal oxides; transition metal oxides; stability; PEDOT:PSS