Highly Efficient and Stable Perovskite Solar Cells Enabled by All-Crosslinked Charge-Transporting Layers

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Zonglong Zhu
  • Dongbing Zhao
  • Chu-Chen Chueh
  • Xueliang Shi
  • Zhongan Li

Detail(s)

Original languageEnglish
Pages (from-to)168-183
Journal / PublicationJoule
Volume2
Issue number1
Online published1 Dec 2017
Publication statusPublished - 17 Jan 2018

Link(s)

Abstract

Despite the demonstrated high power conversion efficiency (PCE) of perovskite solar cells (PVSC), long-term stability of the device operated in humid environments under photo- and thermal stresses is still a serious concern prior to any commercialization. To provide possible solutions to overcome this hurdle, we have synthesized an n-type conjugated molecule, c-HATNA, that can be crosslinked as an electron-transporting layer (ETL) on top of the desired perovskites. By proper doping to increase its electron-transporting property, a high PCE of 18.21% can be obtained with respectable moisture and thermal stability without encapsulation. Moreover, this c-HATNA ETL can be used in conjunction with another crosslinkable hole-transporting layer, c-TCTA-BVP, to fabricate all-crosslinked charge-transporting layers (CTLs) for PVSCs and achieve 16.08% and 13.42% PCEs on rigid and flexible substrates, respectively. More importantly, the device with all-crosslinked CTLs showed impressive thermal stability in ambient environment: almost 70% of its initial PCE after being heated at 70°C for 300 hr.

Research Area(s)

  • crosslinked charge transport layer, perovskite solar cell, stability

Citation Format(s)

Highly Efficient and Stable Perovskite Solar Cells Enabled by All-Crosslinked Charge-Transporting Layers. / Zhu, Zonglong; Zhao, Dongbing; Chueh, Chu-Chen; Shi, Xueliang; Li, Zhongan; Jen, Alex K.-Y.

In: Joule, Vol. 2, No. 1, 17.01.2018, p. 168-183.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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