Stable and null current hysteresis perovskite solar cells based nitrogen doped graphene oxide nanoribbons hole transport layer.
Stable and null current hysteresis perovskite solar cells based nitrogen doped graphene oxide nanoribbons hole transport layer.
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DOI：
10.1038/srep27773
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发表时间：
2016-06-09
影响因子：
4.6
通讯作者：
Jang J
中科院分区：
文献类型：
--
作者：
Kim J;Mat Teridi MA;Mohd Yusoff AR;Jang J
永久性太阳能电池正在成为减少我们对传统电源依赖的领先技术之一。然而，经常使用的组分聚（3，4-亚乙基二氧噻吩）聚苯乙烯磺酸盐（PEDOT：PSS）具有几个缺点，例如在高温下容易腐蚀的氧化铟锡（ITO）界面和诱导的电不均匀性。在本文中，我们提出了溶液处理的氮掺杂氧化石墨烯纳米带（NGONR）作为钙钛矿太阳能电池中的空穴传输层（HTL），取代导电聚合物PEDOT：PSS。基于NGONR的钙钛矿太阳能电池的转换效率超过了使用PEDOT：PSS构建的控制设备。此外，我们提出的基于NGONR的器件还表现出可忽略的电流滞后沿着的稳定性提高。本工作为取代PEDOT：PSS作为有效的HTL提供了一条有效的途径。
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 PEDOT:PSS as the effective HTL.