skip to main content

SciTech ConnectSciTech Connect

Title: Channeling of electron transport to improve collection efficiency in mesoporous titanium dioxide dye sensitized solar cell stacks

Dye-sensitized solar cell (DSC) modules are generally made by interconnecting large photoelectrode strips with optimized thickness (∼14 μm) and show lower current density (J{sub SC}) compared with their single cells. We found out that the key to achieving higher J{sub SC} in large area devices is optimized photoelectrode volume (V{sub D}), viz., thickness and area which facilitate the electron channeling towards working electrode. By imposing constraints on electronic path in a DSC stack, we achieved >50% increased J{sub SC} and ∼60% increment in photoelectric conversion efficiency in photoelectrodes of similar V{sub D} (∼3.36 × 10{sup −4} cm{sup 3}) without using any metallic grid or a special interconnections.
Authors:
; ; ;  [1] ;  [2]
  1. Nanostructured Renewable Energy Materials Laboratory, Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, 26300 Pahang (Malaysia)
  2. Faculty of Electrical and Electronics Engineering, Universiti Malaysia Pahang, 26300 Pahang (Malaysia)
Publication Date:
OSTI Identifier:
22283241
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 5; 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; 30 DIRECT ENERGY CONVERSION; CALORIMETRY; COMPARATIVE EVALUATIONS; CURRENT DENSITY; ELECTRON CHANNELING; ELECTRONS; ENERGY CONVERSION; ENERGY EFFICIENCY; NANOSTRUCTURES; SOLAR CELLS; TITANIUM OXIDES