Intrinsically Stretchable and Non-Halogenated Solvent Processed Polymer Solar Cells Enabled by Hydrophilic Spacer-Incorporated Polymers

Cited 6 time in webofscience Cited 0 time in scopus
  • Hit : 496
  • Download : 0
Blends of polymer donors (P(D)s) and small molecule acceptors (SMAs) have afforded highly efficient polymer solar cells (PSCs). However, most of the efficient PSCs are processed using toxic halogenated solvents, and they are mechanically fragile. Here, a new series of P(D)s by incorporating a hydrophilic oligo(ethylene glycol) flexible spacer (OEG-FS) is developed, and efficient PSCs with a high power conversion efficiency (PCE) of 17.74% processed by a non-halogenated solvent are demonstrated. Importantly, the incorporation of these OEG-FSs into the P(D)s significantly increases the mechanical robustness and ductility of resulting PSCs, making them suitable for application as stretchable devices. The OEG-FS alleviates excessive backbone rigidity of the P(D)s while enhancing their pre-aggregation in the non-halogenated solvent. In addition, the OEG-FS in the P(D)s enhances P-D-SMA interfacial interactions and improves blend morphology, resulting in efficient charge generation and mechanical stress dissipation. The resulting PSCs demonstrate a superior PCE (17.74%) and high crack-onset strain (COS = 10.50%), outperforming the PSCs without OEG (PCE = 15.64% and COS = 2.99%). Importantly, intrinsically stretchable (IS) PSCs containing the P-D featuring OEG-FS exhibit a high PCE (12.05%) and stretchability (maintaining 80% of the initial PCE after 22% strain), demonstrating their viability for wearable applications.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2022-12
Language
English
Article Type
Article
Citation

ADVANCED ENERGY MATERIALS, v.12, no.46

ISSN
1614-6832
DOI
10.1002/aenm.202202224
URI
http://hdl.handle.net/10203/303094
Appears in Collection
ME-Journal Papers(저널논문)EE-Journal Papers(저널논문)CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 6 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0