Charge diffusion noise in monocrystalline PbS nanoparticle films Academic Article uri icon

abstract

  • Charge transport in monocrystalline lead sulfide (PbS) nanoparticle films is investigated by current noise measurements. Monocrystalline and single-sized PbS nanoparticles are synthesized via the gas phase and deposited electrostatically onto semiconducting (GaAs) and on isolating (SiNx) substrates with planar electrode contacts. The particles form inhomogeneous films. Low-frequency current noise of 1-ML-thick films are measured at various voltages, exhibiting diffusion noise characteristics, which indicates a random-walk (diffusion) phenomenon of electrons between the particles. © 2000 American Institute of Physics.

author list (cited authors)

  • Otten, F., Kish, L. B., Granqvist, C., Vandamme, L., Vajtai, R., Kruis, F. E., & Fissan, H.

citation count

  • 7

publication date

  • November 2000