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Improving charge transport of P3HT:PCBM organic solar cell using MoO3 nanoparticles as an interfacial buffer layer

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Abstract

In this work, P3HT:PCBM based organic solar cells (OSCs) were fabricated. We investigated the protection of PEDOT:PSS from active layer using the solution processed molybdenum oxide nanoparticles layer (MoO3 NPs, ≤100 nm). The device structure was ITO/ZnO/P3HT: PCBM/MoO3/PEDOT:PSS/Ag. A thin film MoO3 NPs was spin-coated and it acts as a hole transporting layer between the active layer and PEDOT:PSS. The MoO3 NPs based device showed an improved short circuit current compared without MoO3 NP layer. The pristine OSCs showed short circuit current density (J sc ) of 11.56 mA/cm2 and PCE of 3.70% under AM 1.5G (100 mW/cm2). MoO3 NPs based device showed an increased PCE of 4.11% with J sc of 12.74 mA/cm2. MoO3 NPs also decreased the charge recombination and resistance of the OSCs.

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Authors and Affiliations

  1. School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon, 16419, Korea

    Jae-Hyoung Kim, Eung-Kyu Park, Ji-Hwan Kim, Hyeong Jun Cho, Dong-Hoon Lee & Yong-Sang Kim

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  1. Jae-Hyoung Kim
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  2. Eung-Kyu Park
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  3. Ji-Hwan Kim
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  4. Hyeong Jun Cho
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  5. Dong-Hoon Lee
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  6. Yong-Sang Kim
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Correspondence to Yong-Sang Kim.

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J.-H. Kim and E.-K. Park contributed equally to this work

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Kim, JH., Park, EK., Kim, JH. et al. Improving charge transport of P3HT:PCBM organic solar cell using MoO3 nanoparticles as an interfacial buffer layer. Electron. Mater. Lett. 12, 383–387 (2016). https://doi.org/10.1007/s13391-016-5452-3

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  • DOI: https://doi.org/10.1007/s13391-016-5452-3

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