DOI QR코드

DOI QR Code

Synthesis of TCO-free Dye-sensitized Solar Cells with Nanoporous Ti Electrodes Using RF Magnetron Sputtering Technology

  • Kim, Doo-Hwan (Department of Electrical Engineering, Kyungsung University) ;
  • Heo, Jong-Hyun (Department of Electrical Engineering, Kyungsung University) ;
  • Kwak, Dong-Joo (Department of Electrical Engineering, Kyungsung University) ;
  • Sung, Youl-Moon (Department of Electrical Engineering, Kyungsung University)
  • 발행 : 2010.03.01

초록

A new type of dye-sensitized solar cell (DSC) based on a porous type Ti electrode without using a transparent conductive oxide (TCO) layer is fabricated for low-cost high-efficient solar cell application. The TCO-free DSC is composed of a glass substrate/dye-sensitized $TiO_2$ nanoparticle/porous Ti layer/electrolyte/Pt sputtered counter electrode. The porous Ti electrode (~350 nm thickness) with high conductivity can collect electrons from the $TiO_2$ layer and allows the ionic diffusion of $I^-/I_3{^-}$ through the hole. The vacuum annealing treatment is important with respect to the interfacial necking between the metal Ti and porous $TiO_2$ layer. The efficiency of the prepared TCO-free DSC sample is about 3.5% (ff: 0.48, $V_{oc}$: 0.64V, $J_{sc}$: 11.14 mA/$cm^2$).

키워드

참고문헌

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