Achieving 17.5% efficiency for polymer solar cells via a donor and acceptor layered optimization strategy

Wenjing Xu; Xiong Li; Sang Young Jeong; Jae Hoon Son; Zhengji Zhou; Qiuju Jiang; Han Young Woo; Qinghe Wu; Xixiang Zhu; Xiaoling Ma; Fujun Zhang

doi:10.1039/d2tc00024e

Achieving 17.5% efficiency for polymer solar cells via a donor and acceptor layered optimization strategy

Wenjing Xu, Xiong Li, Sang Young Jeong, Jae Hoon Son, Zhengji Zhou, Qiuju Jiang, Han Young Woo, Qinghe Wu, Xixiang Zhu, Xiaoling Ma, Fujun Zhang

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Layer-by-layer polymer solar cells (LbL-PSCs) were prepared with PNTB6-Cl as the donor and Y6 as the acceptor by a sequential spin-coating method. Two solvent additives DPE and DFB were individually incorporated into PNTB6-Cl chlorobenzene solution and Y6 chloroform solution. A PCE of 17.53% was achieved for the optimal LbL-PSCs with two solvent additives, which is much larger than the PCE of 16.38% for the LbL-PSCs without solvent additives. Over 7% PCE enhancement can be realized by individually employing solvent additives in donor and acceptor layers, resulting from the simultaneously enhanced open circuit voltage (V_OC) of 0.88 V, short circuit current density (J_SC) of 26.63 mA cm⁻² and fill factor (FF) of 74.83%. The photogenerated exciton distribution, charge transport and collection in the LbL-PSCs can be optimized by employing different solvent additives in donor and acceptor solutions. Meanwhile, the efficient energy transfer from PNTB6-Cl to Y6 can provide an additional channel for improving the exciton utilization efficiency through exciton dissociation at PNTB6-Cl/Y6 interfaces. Meanwhile, the PCEs of LbL-PSCs are better than those of bulk heterojunction PSCs with the same materials and solvent additives, indicating the great potential of LbL-PSCs for commercial application.

Original language	English
Pages (from-to)	5489-5496
Number of pages	8
Journal	Journal of Materials Chemistry C
Volume	10
Issue number	14
DOIs	https://doi.org/10.1039/d2tc00024e
Publication status	Published - 2022 Mar 1

ASJC Scopus subject areas

Chemistry(all)
Materials Chemistry

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10.1039/d2tc00024e

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@article{ecf74aedcf774c3fb87b9649f677822a,

title = "Achieving 17.5% efficiency for polymer solar cells via a donor and acceptor layered optimization strategy",

abstract = "Layer-by-layer polymer solar cells (LbL-PSCs) were prepared with PNTB6-Cl as the donor and Y6 as the acceptor by a sequential spin-coating method. Two solvent additives DPE and DFB were individually incorporated into PNTB6-Cl chlorobenzene solution and Y6 chloroform solution. A PCE of 17.53% was achieved for the optimal LbL-PSCs with two solvent additives, which is much larger than the PCE of 16.38% for the LbL-PSCs without solvent additives. Over 7% PCE enhancement can be realized by individually employing solvent additives in donor and acceptor layers, resulting from the simultaneously enhanced open circuit voltage (VOC) of 0.88 V, short circuit current density (JSC) of 26.63 mA cm−2 and fill factor (FF) of 74.83%. The photogenerated exciton distribution, charge transport and collection in the LbL-PSCs can be optimized by employing different solvent additives in donor and acceptor solutions. Meanwhile, the efficient energy transfer from PNTB6-Cl to Y6 can provide an additional channel for improving the exciton utilization efficiency through exciton dissociation at PNTB6-Cl/Y6 interfaces. Meanwhile, the PCEs of LbL-PSCs are better than those of bulk heterojunction PSCs with the same materials and solvent additives, indicating the great potential of LbL-PSCs for commercial application.",

author = "Wenjing Xu and Xiong Li and Jeong, {Sang Young} and Son, {Jae Hoon} and Zhengji Zhou and Qiuju Jiang and Woo, {Han Young} and Qinghe Wu and Xixiang Zhu and Xiaoling Ma and Fujun Zhang",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (62175011, 61975006 and 62105017), the Postdoctoral Innovative Talent Support Program (BX20200042), the China Postdoctoral Science Foundation (2020M680327) and the Beijing Natural Science Foundation (4192049). Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry",

year = "2022",

month = mar,

day = "1",

doi = "10.1039/d2tc00024e",

language = "English",

volume = "10",

pages = "5489--5496",

journal = "Journal of Materials Chemistry C",

issn = "2050-7526",

publisher = "Royal Society of Chemistry",

number = "14",

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TY - JOUR

T1 - Achieving 17.5% efficiency for polymer solar cells via a donor and acceptor layered optimization strategy

AU - Xu, Wenjing

AU - Li, Xiong

AU - Jeong, Sang Young

AU - Son, Jae Hoon

AU - Zhou, Zhengji

AU - Jiang, Qiuju

AU - Woo, Han Young

AU - Wu, Qinghe

AU - Zhu, Xixiang

AU - Ma, Xiaoling

AU - Zhang, Fujun

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (62175011, 61975006 and 62105017), the Postdoctoral Innovative Talent Support Program (BX20200042), the China Postdoctoral Science Foundation (2020M680327) and the Beijing Natural Science Foundation (4192049). Publisher Copyright: © 2022 The Royal Society of Chemistry

PY - 2022/3/1

Y1 - 2022/3/1

N2 - Layer-by-layer polymer solar cells (LbL-PSCs) were prepared with PNTB6-Cl as the donor and Y6 as the acceptor by a sequential spin-coating method. Two solvent additives DPE and DFB were individually incorporated into PNTB6-Cl chlorobenzene solution and Y6 chloroform solution. A PCE of 17.53% was achieved for the optimal LbL-PSCs with two solvent additives, which is much larger than the PCE of 16.38% for the LbL-PSCs without solvent additives. Over 7% PCE enhancement can be realized by individually employing solvent additives in donor and acceptor layers, resulting from the simultaneously enhanced open circuit voltage (VOC) of 0.88 V, short circuit current density (JSC) of 26.63 mA cm−2 and fill factor (FF) of 74.83%. The photogenerated exciton distribution, charge transport and collection in the LbL-PSCs can be optimized by employing different solvent additives in donor and acceptor solutions. Meanwhile, the efficient energy transfer from PNTB6-Cl to Y6 can provide an additional channel for improving the exciton utilization efficiency through exciton dissociation at PNTB6-Cl/Y6 interfaces. Meanwhile, the PCEs of LbL-PSCs are better than those of bulk heterojunction PSCs with the same materials and solvent additives, indicating the great potential of LbL-PSCs for commercial application.

AB - Layer-by-layer polymer solar cells (LbL-PSCs) were prepared with PNTB6-Cl as the donor and Y6 as the acceptor by a sequential spin-coating method. Two solvent additives DPE and DFB were individually incorporated into PNTB6-Cl chlorobenzene solution and Y6 chloroform solution. A PCE of 17.53% was achieved for the optimal LbL-PSCs with two solvent additives, which is much larger than the PCE of 16.38% for the LbL-PSCs without solvent additives. Over 7% PCE enhancement can be realized by individually employing solvent additives in donor and acceptor layers, resulting from the simultaneously enhanced open circuit voltage (VOC) of 0.88 V, short circuit current density (JSC) of 26.63 mA cm−2 and fill factor (FF) of 74.83%. The photogenerated exciton distribution, charge transport and collection in the LbL-PSCs can be optimized by employing different solvent additives in donor and acceptor solutions. Meanwhile, the efficient energy transfer from PNTB6-Cl to Y6 can provide an additional channel for improving the exciton utilization efficiency through exciton dissociation at PNTB6-Cl/Y6 interfaces. Meanwhile, the PCEs of LbL-PSCs are better than those of bulk heterojunction PSCs with the same materials and solvent additives, indicating the great potential of LbL-PSCs for commercial application.

UR - http://www.scopus.com/inward/record.url?scp=85127087787&partnerID=8YFLogxK

U2 - 10.1039/d2tc00024e

DO - 10.1039/d2tc00024e

M3 - Article

AN - SCOPUS:85127087787

SN - 2050-7526

VL - 10

SP - 5489

EP - 5496

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 14

ER -

Achieving 17.5% efficiency for polymer solar cells via a donor and acceptor layered optimization strategy

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