Improved Ambient-Stable Perovskite Solar Cells Enabled by a Hybrid Polymeric Electron-Transporting Layer

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

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Author(s)

  • Zonglong Zhu
  • Chu-Chen Chueh
  • Guangye Zhang
  • Fei Huang
  • He Yan

Detail(s)

Original languageEnglish
Pages (from-to)2586-2591
Journal / PublicationChemSusChem
Volume9
Issue number18
Publication statusPublished - 22 Sep 2016
Externally publishedYes

Abstract

In this work, an efficient inverted perovskite solar cell with decent ambient stability is successfully demonstrated by employing an n-type polymer, poly{[N,N′-bis(2-octyldodecyl)-1,4,5,8-naphthalene diimide-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)} (N2200), as the electron-transporting layer (ETL). The device performance can be further enhanced from a power conversion efficiency (PCE) of 15 to 16.8 % by tailoring the electronic properties of N2200 with a polymeric additive, poly[9,9-bis(6′-(N,N-diethylamino)propyl)-fluorene-alt-9,9-bis(3-ethyl(oxetane-3-ethyloxy)-hexyl) fluorene] (PFN-Ox). More importantly, the device derived from this hybrid ETL can maintain good ambient stability inherent from the pristine N2200 ETL, for which 60–70 % of initial PCE can be retained after being stored in air with 10–20 % humidity for 45 days.

Research Area(s)

  • electron-transport layer, n-type polymer, perovskite, solar cells, stability

Citation Format(s)

Improved Ambient-Stable Perovskite Solar Cells Enabled by a Hybrid Polymeric Electron-Transporting Layer. / Zhu, Zonglong; Chueh, Chu-Chen; Zhang, Guangye; Huang, Fei; Yan, He; Jen, Alex K.-Y.

In: ChemSusChem, Vol. 9, No. 18, 22.09.2016, p. 2586-2591.

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