skip to main content

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

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.
Authors:
; ; ; ; ; ;  [1] ;  [2] ;  [2] ;  [3] ;  [1] ;  [4]
  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)
  3. (Singapore)
  4. (China)
Publication Date:
OSTI Identifier:
22300139
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 21; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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