Plasmon-enhanced polymer photovoltaic cells based on large aspect ratio gold nanorods and the related working mechanism

Journal Article · Mon May 26 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4880575· OSTI ID:22300139

Chen, S. F.; Cheng, F.; Mei, Y.; Kong, M.; Hao, J. Y.; Zhang, R.; Wang, L. H. ^[1]; Peng, B. ^[2]

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1. Key Laboratory for Organic Electronics and Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023 (China)
2. Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore)

Two types of Au nanorods (NRs) possessing longitudinal/transverse axes of 55/11 (NR{sub 11}) and 90/18 nm (NR{sub 18}) are, respectively, incorporated into the hole extraction layer to improve optical-to-electrical conversion performances in polymer photovoltaic cells. Totally different improvement factors in short-circuit current and power conversion efficiency occur in the NR{sub 11}- and NR{sub 18}-doped cells. Optical simulations, electrical analysis, and morphology alteration accompanying with the incorporation of NRs were proceeded to investigate the reason, and analysis demonstrates that a slower damping of field around NRs{sub 18} (results in a field and absorption enhancement around the active layer) and one order higher scattering cross section in the NR{sub 18}-incorporated cell are key factors contributed to the improvement of cell performances.

• OSTI ID: 22300139
• Journal Information: Applied Physics Letters, Vol. 104, Issue 21; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
ASPECT RATIO
CONVERSION
CROSS SECTIONS
CURRENTS
DAMPING
DOPED MATERIALS
ELECTRICAL FAULTS
EXTRACTION
GOLD
HOLES
LAYERS
NANOSTRUCTURES
PHOTOVOLTAIC CELLS
POLYMERS
SCATTERING
SIMULATION
NANOPARTICLES