Phototransport in colloidal nanoplatelets array

Emmanuel Lhuillier (1, 2) , Jean-Francois Dayen (3) , Daniel O. Thomas (2) , Adrien Robin (2) , Sandrine Ithurria (2) , Herve Aubin (2) , Benoit Dubertret (2)

1 INSP-E6 - Physico-chimie et dynamique des surfaces
2 LPEM - Laboratoire de Physique et d'Etude des Matériaux (UMR 8213)
3 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg

Colloidal nanocrystals are promising materials for achieving low cost optoelectronic devices. In this paper, we focus on the transport and photo transport properties of 2D nanoplatelet thin films and their use for photodetection. We present evidence that improved performances relies on good trap passivation as well as overcoming the inherent large exciton binding energy of the 2D NPL. This can be achieved using a phototransistor configuration with transport at the single particle scale

Mots clés: semiconductor nanoparticles; quantum dot; nanoplatelets; photodetection; electrolyte gating; noise

Domaines: Matière Condensée [cond-mat]; Matériaux

Emmanuel Lhuillier, Jean-Francois Dayen, Daniel O. Thomas, Adrien Robin, Sandrine Ithurria, et al.. Phototransport in colloidal nanoplatelets array. physica status solidi (c), 2016, 13 (7-9), pp.526 - 529. ⟨10.1002/pssc.201510165⟩. ⟨hal-01473612⟩