Efficient and Stable MAPbI3 -Based Perovskite Solar Cells Using Polyvinylcarbazole Passivation

The Journal of Physical Chemistry Letters
Pavel A TroshinPavel A Troshin

Abstract

Hybrid perovskite solar cells attract a great deal of attention due to the feasibility of their low-cost production and their demonstration of impressive power conversion efficiencies (PCEs) exceeding 25%. However, the insufficient intrinsic stability of lead halides under light soaking and thermal stress impedes practical implementation of this technology. Herein, we show that the photothermal aging of a widely used perovskite light absorber such as MAPbI3 can be suppressed significantly by using polyvinylcarbazole (PVC) as a stabilizing agent. By applying a few complementary methods, we reveal that the PVC additive leads to passivation of defects in the absorber material. Introducing an optimal content of PVC into MAPbI3 delivers a PCE of 18.7% in combination with a significantly improved solar cell operational lifetime: devices retained ∼70% of the initial efficiency after light soaking for 1500 h, whereas the control samples without PVC degraded almost completely under the same conditions.

References

Jan 16, 2015·Journal of the American Chemical Society·Jeffrey A ChristiansPrashant V Kamat
Feb 12, 2015·Beilstein Journal of Nanotechnology·Toma SusiPaola Ayala
Aug 12, 2015·The Journal of Physical Chemistry Letters·Ravi K MisraEugene A Katz
Jan 7, 2016·Nature Communications·Yicheng ZhaoQing Zhao
Jan 30, 2016·ACS Applied Materials & Interfaces·Neeti TripathiKenjiro Miyano
Feb 4, 2016·The Journal of Physical Chemistry Letters·Sergiu DragutaMasaru Kuno
Nov 22, 2016·Advanced Materials·Chuanjiang QinChihaya Adachi
Feb 22, 2017·The Journal of Physical Chemistry Letters·Azat F AkbulatovPavel A Troshin
Jun 2, 2017·Nature Communications·G GranciniMohammad Khaja Nazeeruddin
Oct 10, 2018·ACS Applied Materials & Interfaces·Mengru WangJianjun Tian
May 8, 2019·Advanced Materials·Erkan AydinStefaan De Wolf
Dec 17, 2019·The Journal of Physical Chemistry Letters·Azat F AkbulatovPavel A Troshin

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Citations

Apr 22, 2021·The Journal of Physical Chemistry Letters·Wenda Shi, Huanqing Ye
Jul 3, 2021·Materials·Siphesihle Siphamandla MagubaneAmogelang Sylvester Bolokang

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