

FOLLOWUS
a.Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
b.School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, China
c.South China Institute of Collaborative Innovation, Dongguan 523808, China
msleiying@scut.edu.cn
Received:26 February 2020,
Revised:2020-3-13,
Accepted:17 March 2020,
Online First:18 May 2020,
Published:2020-08
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Li, M. J.; Fan, B. B.; Zhong, W. K.; Zeng, Z. M. Y.; Xu, J. K.; Ying, L. Rational design of conjugated polymers for , d,-limonene processed all-polymer solar cells with small energy loss. Chinese J. Polym. Sci. 2020, 38, 791–796
Mei-Jing Li, Bao-Bing Fan, Wen-Kai Zhong, et al. Rational Design of Conjugated Polymers for
Li, M. J.; Fan, B. B.; Zhong, W. K.; Zeng, Z. M. Y.; Xu, J. K.; Ying, L. Rational design of conjugated polymers for , d,-limonene processed all-polymer solar cells with small energy loss. Chinese J. Polym. Sci. 2020, 38, 791–796 DOI: 10.1007/s10118-020-2429-3.
Mei-Jing Li, Bao-Bing Fan, Wen-Kai Zhong, et al. Rational Design of Conjugated Polymers for
In this work
we designed and synthesized a novel naphthalenediimide-based n-type conjugated polymer
PNDICl
which bears asymmetric backbone containing a 3-chlorothiophene unit. The asymmetric structure associated with steric effects of the chlorine atom imparts remarkable solubility to
PNDICl
in various organic solvents
enabling the fabrication of all-polymer solar cells (all-PSCs) by using an environmentally friendly solvent of
d
-limonene. Combined with a novel pyrrolo[3
4-
f
]benzotriazole-5
7(6
H
)-dione based p-type conjugated polymer
P2F-Si
with deep highest occupied molecular orbital energy level
the resulting
d
-limonene-processed all-PSCs presents an impressively high open-circuit voltage of approaching 1.0 V
corresponding to a very small energy loss of 0.49 eV. Through further morphology optimization by using
γ
-valerolactone
we demonstrated an impressive device efficiency of 4.2%
which is among the best photovoltaic performance of devices processed using
d
-limonene and comparable to that processed by conventional solvent
suggesting the great promise of using greener solvent for fabricating high-performance all-PSCs.
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