Synthesis of SnS nanoparticles by SILAR method for quantum dot-sensitized solar cells

Hiroki Tsukigase (1) , Yoshikazu Suzuki (1) , Marie-Hélène Berger (2) , Takashi Sagawa (1) , Susumu Yoshikawa (1)

1 IAE - Institute of Advanced Energy
2 MAT - Centre des Matériaux

SnS-sensitized TiO2 electrodes were applied in quantum dot-sensitized solar cells (QDSSCs) which are environmentally more favorable than conventional Cd or Pb-chalcogenide-sensitized electrodes. SnS nanoparticles were well-distributed over the surface of TiO2 nanoparticles by the successive ionic layer adsorption and reaction (SILAR) method. Deposited SnS nanoparticles had diameter about 3 nm. Under AM1.5 irradiation with 100 mW/cm2 light intensity (at 1 sun), the energy conversion efficiency of obtained cells reached a value of 0.21% (0.25 cm2 at SILAR coating cycles of 5. In addition, the photovoltaic performance was improved by additional ZnS coating on the surface of SnS-sensitized TiO2 electrodes.

Mots clés: Quantum dot-sensitized solar cell (QDSSC); dye-sensitized solar cells (DSC); tin sulfide (SnS); sucessive ionic layer adsorption and reaction (SILAR) method; ZnS coating

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Hiroki Tsukigase, Yoshikazu Suzuki, Marie-Hélène Berger, Takashi Sagawa, Susumu Yoshikawa. Synthesis of SnS nanoparticles by SILAR method for quantum dot-sensitized solar cells. Journal of Nanoscience and Nanotechnology, 2011, 11, pp.1914-1922. ⟨10.1166/jnn.2011.3582⟩. ⟨hal-00619399⟩