Abstract
Precisely positioning functionalized gold nanoparticles assemblies at planar donor-acceptor interfaces results in 14-fold enhancement of power conversion efficiency in P3HT/PCBM organic solar cells on plastic (ITO/PET) substrates. This result has been achieved by employing naphthalenethiol-capped gold nanoparticles (NT-Au-NPs) produced by laser ablation in liquid and size varied in the 10-30 nm range. Upon surface functionalization with the aromatic thiol, these particles self-assemble in submicrometer aggregates, which give increased light scattering. When these aggregates are deposited in the planar heterojunction between the donor and the acceptor systems, the localized scattering leads to a larger exciton formation just in the region of interest for charge transfer. (Graph Presented).
Lingua originale | English |
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pagine (da-a) | 26588-26599 |
Numero di pagine | 12 |
Rivista | JOURNAL OF PHYSICAL CHEMISTRY. C |
Volume | 120 |
Stato di pubblicazione | Published - 2016 |
All Science Journal Classification (ASJC) codes
- ???subjectarea.asjc.2500.2504???
- ???subjectarea.asjc.2100.2100???
- ???subjectarea.asjc.1600.1606???
- ???subjectarea.asjc.2500.2508???