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Stable and null current hysteresis perovskite solar cells based nitrogen doped graphene oxide nanoribbons hole
Jeongmo Kim1, Mohd Asri Mat Teridi2, Abd Rashid Bin Mohd Yusoff1
1Department of Information Display, Kyung Hee University, Dongdaemoo-gu, 130-701 Seoul, Korea.
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Perovskite solar cells are becoming one of the leading technologies to reduce our dependency on traditional power sources. However, the frequently used component poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (
Pedot:
PSS) has several shortcomings, such as an easily corroded indium-tin-oxide (ITO) interface at elevated temperatures and induced electrical inhomogeneity. Herein, we propose solution-processed nitrogen-doped graphene oxide nanoribbons (NGONRs) as a hole transport layer (HTL) in perovskite solar cells, replacing the conducting polymer
Pedot:
PSS. The conversion efficiency of NGONR-based perovskite solar cells has outperformed a control device constructed using
Pedot:
PSS. Moreover, our proposed NGONR-based devices also demonstrate a negligible current hysteresis along with improved stability. This work provides an effective route for substituting
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PSS as the effective HTL.
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