Print Email Facebook Twitter Transport Properties of a Two-Dimensional PbSe Square Superstructure in an Electrolyte-Gated Transistor Title Transport Properties of a Two-Dimensional PbSe Square Superstructure in an Electrolyte-Gated Transistor Author Alimoradi Jazi, M. (Universiteit Utrecht) Janssen, V.A.E.C. (TU Delft QN/van der Zant Lab) Evers, W.H. (TU Delft QN/van der Zant Lab) Tadjine, A. (IEMN Institut d'Electronique de Microelectronique et de Nanotechnologie) Delerue, C (IEMN Institut d'Electronique de Microelectronique et de Nanotechnologie) Siebbeles, L.D.A. (TU Delft ChemE/Opto-electronic Materials) van der Zant, H.S.J. (TU Delft QN/van der Zant Lab) Houtepen, A.J. (TU Delft ChemE/Opto-electronic Materials) Vanmaekelbergh, D (Universiteit Utrecht) Date 2017-09-13 Abstract Self-assembled nanocrystal solids show promise as a versatile platform for novel optoelectronic materials. Superlattices composed of a single layer of lead-chalcogenide and cadmium-chalcogenide nanocrystals with epitaxial connections between the nanocrystals, present outstanding questions to the community regarding their predicted band structure and electronic transport properties. However, the as-prepared materials are intrinsic semiconductors; to occupy the bands in a controlled way, chemical doping or external gating is required. Here, we show that square superlattices of PbSe nanocrystals can be incorporated as a nanocrystal monolayer in a transistor setup with an electrolyte gate. The electron (and hole) density can be controlled by the gate potential, up to 8 electrons per nanocrystal site. The electron mobility at room temperature is 18 cm2/(V s). Our work forms a first step in the investigation of the band structure and electronic transport properties of two-dimensional nanocrystal superlattices with controlled geometry, chemical composition, and carrier density. Subject 2D superstructureelectrolyte gatingoptoelectrical characterizationoriented attachmentself-assembly To reference this document use: http://resolver.tudelft.nl/uuid:fc4c84fd-81e0-490a-b077-0f60c25fe7a6 DOI https://doi.org/10.1021/acs.nanolett.7b01348 ISSN 1530-6984 Source Nano Letters: a journal dedicated to nanoscience and nanotechnology, 17 (9), 5238-5243 Part of collection Institutional Repository Document type journal article Rights © 2017 M. Alimoradi Jazi, V.A.E.C. Janssen, W.H. Evers, A. Tadjine, C Delerue, L.D.A. Siebbeles, H.S.J. van der Zant, A.J. Houtepen, D Vanmaekelbergh Files PDF acs.nanolett.7b01348.pdf 1.8 MB Close viewer /islandora/object/uuid:fc4c84fd-81e0-490a-b077-0f60c25fe7a6/datastream/OBJ/view