A Room-Temperature Processable PDI-Based Electron-Transporting Layer for Enhanced Performance in PDI-Based Non-Fullerene Solar Cells

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Jiangsheng Yu
  • Yuyin Xi
  • Chu-Chen Chueh
  • Dongbing Zhao
  • Francis Lin
  • Lilo D. Pozzo
  • Weihua Tang

Detail(s)

Original languageEnglish
Article number1600476
Journal / PublicationAdvanced Materials Interfaces
Volume3
Issue number18
Publication statusPublished - 20 Sept 2016
Externally publishedYes

Abstract

In this study, it is demonstrated that a facile room-temperature processed amine functionalized perylene-diimide (PDIN) can function as an efficient electron-transporting layer (ETL) to enhance the photovoltaic performance of inverted PDI-based non-fullerene solar cells. It is showed that the PDIN ETL possesses respectable mobilities and interfacial doping capability to the PDI-based acceptors to facilitate the charge transport and extraction in the devices. Moreover, it can modulate the morphological evolution of the bulk-heterojunction (BHJ) atop to result in a more crystalline, face-on orientation because of its improved compatibility to PDI-based acceptors. Consequently, the PDIN ETL enables the derived devices to have 10% higher power conversion efficiency (PCE) than the reference device. In addition, the PDIN can also be used as a surface modifier on ZnO to result in a ≈14% enhanced PCE than that of the pristine ZnO-based device. This study shows the feasibility of modulating the BHJ of non-fullerene organic photovoltaics by rationally selected ETLs to facilitate exciton dissociation and collection of the devices.

Research Area(s)

  • electron-transporting layer, non-fullerene acceptors, organic photovoltaics, perylene-diimide

Citation Format(s)

A Room-Temperature Processable PDI-Based Electron-Transporting Layer for Enhanced Performance in PDI-Based Non-Fullerene Solar Cells. / Yu, Jiangsheng; Xi, Yuyin; Chueh, Chu-Chen et al.
In: Advanced Materials Interfaces, Vol. 3, No. 18, 1600476, 20.09.2016.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review