Issue 47, 2022

Diketopyrrolopyrrole-based conjugated polymers containing planar benzo[c]cinnoline and tetraazapyrene structures for high-performance and long-term stable triboelectric nanogenerators

Abstract

In this work, diketopyrrolopyrrole (DPP)-based conjugated polymers, benzo[c]cinnoline/diketopyrrolopyrrole (BZC–DPP) and tetraazapyrene/diketopyrrolopyrrole (TAP–DPP), are incorporated as the surface modification layer for a triboelectric nanogenerator (TENG). Both polymers exhibit high planarity and extended π-electron delocalization, which can facilitate the electron transfer between the triboelectric layers. Compared with BZC–DPP, TAP–DPP possesses stronger electron-withdrawing ability, which would be beneficial for the generation of triboelectric charges. Consequently, the TENG based on TAP–DPP delivers an open circuit voltage (Voc) of 328 V, a short circuit current (Isc) of 27 μA, and an instantaneous power density of 2.4 W m−2. Additionally, the resulting TENG retains an almost comparable Voc even after continuous operation up to 200 000 cycles. To the best of our knowledge, this is the first successful demonstration of using DPP-based conjugated polymers as the surface modification layer for high-performance and long-term stable TENGs. This work can not only open a new avenue for efficient and stable TENGs using DPP-based conjugated polymers as the surface modification layer, but also stimulate further research efforts towards the development of new conjugated polymers for versatile applications of TENGs.

Graphical abstract: Diketopyrrolopyrrole-based conjugated polymers containing planar benzo[c]cinnoline and tetraazapyrene structures for high-performance and long-term stable triboelectric nanogenerators

Supplementary files

Article information

Article type
Paper
Submitted
23 Aug 2022
Accepted
02 Nov 2022
First published
03 Nov 2022

J. Mater. Chem. C, 2022,10, 17983-17993

Diketopyrrolopyrrole-based conjugated polymers containing planar benzo[c]cinnoline and tetraazapyrene structures for high-performance and long-term stable triboelectric nanogenerators

K. Cheng, C. Tsai, Y. Wang, S. S. Pandey, C. Chang and J. Chen, J. Mater. Chem. C, 2022, 10, 17983 DOI: 10.1039/D2TC03551K

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