Back to Search
Start Over
Achieving over 17% efficiency of ternary all-polymer solar cells with two well-compatible polymer acceptors
- Source :
- Joule. 5:1548-1565
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Summary The field of all-polymer solar cells (all-PSCs) has experienced rapid development during the past few years, mainly driven by the design of efficient polymer acceptors (PAs). However, the polymer/polymer blend systems still lag far behind polymer/small molecule acceptor counterparts in power conversion efficiencies (PCEs). Here, we designed a near-infrared PA PY2F-T and paired it with polymer donor PM6 to fabricate all-PSCs with 15.0% PCE. Afterwards, PYT as the third component was introduced into the PM6:PY2F-T host system. Because of the complementary absorption bands and finely tuned microstructures of the ternary blend, the PCE is improved up to 17.2%, with the external quantum efficiency over 80% in visible and near-infrared spectral regions. Impressively, the ternary blend exhibited less energy loss, better light-soaking and photo-thermal stabilities than did the corresponding binary systems. This work promotes the development of high-performance ternary all-polymer systems and heralds a brighter future for accelerating the possible applications of all-PSCs.
- Subjects :
- chemistry.chemical_classification
Materials science
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Acceptor
Polymer solar cell
0104 chemical sciences
General Energy
Chemical engineering
chemistry
Attenuation coefficient
Quantum efficiency
Polymer blend
0210 nano-technology
Ternary operation
Absorption (electromagnetic radiation)
Subjects
Details
- ISSN :
- 25424351
- Volume :
- 5
- Database :
- OpenAIRE
- Journal :
- Joule
- Accession number :
- edsair.doi...........cc0d0ad948ee0ac181bdc06b2c133eb6
- Full Text :
- https://doi.org/10.1016/j.joule.2021.04.007