Open AccessEnhanced performances in inverted small molecule solar cells by Ag nanoparticles
Author(s) -
Fangming Jin,
Bei Chu,
Wenlian Li,
Zisheng Su,
Haifeng Zhao,
ChunSing Lee
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.0a1669
Subject(s) - materials science , surface plasmon resonance , nanoparticle , energy conversion efficiency , nanotechnology , optoelectronics , surface plasmon , plasmon , solar cell , small molecule , molecule , optics , chemistry , physics , biochemistry , organic chemistry
We demonstrate a highly efficient inverted small molecular solar cell with integration of Ag nanoparticles (NPs) into the devices. The optimized device based on thermal evaporated Ag NPs provides a power conversion efficiency (PCE) of 4.87%, which offers 33% improvement than that of the reference device without Ag NPs. Such a high efficiency is mainly attributed to the improved electrical properties by virtue of the modification of the surface of ITO with Ag NPs and the enhanced light harvesting due to localized surface plasmon resonance (LSPR). The more detail enhanced mechanism of the PCE by introduction of Ag NPs is also discussed.