Thermally Stable High-Performance Polymer Solar Cells Enabled by Interfacial Engineering

Chao Hsuan Chen, Zhi Wei Lin, Kuan Min Huang, Hsin Fei Meng, Szu Han Chen, Ziyi Ge, Hsiao Wen Zan, Chih Yu Chang, Yu Chiang Chao, Sheng Fu Horng

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Interfacial engineering plays an important role in determining the performance and stability of polymer solar cells (PSCs). In this study, thermally stable highly efficient PSCs are fabricated by incorporating a solution-processed cathode interfacial layer (CIL), including 4,4′-({[methyl(4-sulfonatobutyl)ammonio]bis(propane-3,1-diyl)}bis(dimethylammoniumdiyl))bis(butane-1-sulfonate) (MSAPBS) and polyethylenimine (PEI). For PSCs based on blends of poly{4,8-bis[5-(2-ethylhexyl)thiophen-2-yl]benzo[1,2-b;4,5-b′]dithiophene-2,6-diyl-alt-[4-(2-ethylhexyl)-3fluorothieno[3,4-b]thiophene-2-carboxylate-2,6-diyl]} (PBDTTT-EFT) and [6,6]-phenyl C 71 -butyric acid methyl ester (PC 71 BM), the maximum power conversion efficiency (PCE) of inverted PSCs reaches 8.1 % and 7.2 % for MSAPBS and PEI CILs, respectively. The inverted PEI devices exhibit remarkable stability (lifetime >6000 h) under accelerated thermal aging (at 80 °C in ambient environment), which is much superior to that of the device with commonly used LiF CIL (lifetime≈33 h). This stability represents the best result reported for PSCs. The promising results based on this strategy can stimulate further work on the development of novel CILs for PSCs and pave the way towards the realization of commercially viable PSCs with high performance and long-term stability.

Original languageEnglish
Pages (from-to)2429-2435
Number of pages7
JournalChemSusChem
Volume11
Issue number14
DOIs
Publication statusPublished - Jul 20 2018

Fingerprint

polymer
engineering
Polyethyleneimine
Cathodes
Propane
Thermal aging
Butyric acid
Butyric Acid
propane
Butane
sulfonate
Thiophene
solar cell
Polymer solar cells
ester
Conversion efficiency
Esters
acid

Keywords

  • electrodes
  • heterojunctions
  • interfaces
  • polymers
  • solar cells

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

Cite this

Chen, C. H., Lin, Z. W., Huang, K. M., Meng, H. F., Chen, S. H., Ge, Z., ... Horng, S. F. (2018). Thermally Stable High-Performance Polymer Solar Cells Enabled by Interfacial Engineering. ChemSusChem, 11(14), 2429-2435. https://doi.org/10.1002/cssc.201800768

Thermally Stable High-Performance Polymer Solar Cells Enabled by Interfacial Engineering. / Chen, Chao Hsuan; Lin, Zhi Wei; Huang, Kuan Min; Meng, Hsin Fei; Chen, Szu Han; Ge, Ziyi; Zan, Hsiao Wen; Chang, Chih Yu; Chao, Yu Chiang; Horng, Sheng Fu.

In: ChemSusChem, Vol. 11, No. 14, 20.07.2018, p. 2429-2435.

Research output: Contribution to journalArticle

Chen, CH, Lin, ZW, Huang, KM, Meng, HF, Chen, SH, Ge, Z, Zan, HW, Chang, CY, Chao, YC & Horng, SF 2018, 'Thermally Stable High-Performance Polymer Solar Cells Enabled by Interfacial Engineering', ChemSusChem, vol. 11, no. 14, pp. 2429-2435. https://doi.org/10.1002/cssc.201800768
Chen, Chao Hsuan ; Lin, Zhi Wei ; Huang, Kuan Min ; Meng, Hsin Fei ; Chen, Szu Han ; Ge, Ziyi ; Zan, Hsiao Wen ; Chang, Chih Yu ; Chao, Yu Chiang ; Horng, Sheng Fu. / Thermally Stable High-Performance Polymer Solar Cells Enabled by Interfacial Engineering. In: ChemSusChem. 2018 ; Vol. 11, No. 14. pp. 2429-2435.
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