Electrolyte-Gated Colloidal Nanoplatelets-Based Phototransistor and Its Use for Bicolor Detection

Colloidal nanocrystals are appealing candidates for low cost optoelectronic applications because they can combine the advantages of both organic materials, such as their easy processing, and the excellent performance of inorganic systems. Here, we report the use of two-dimensional colloidal nanoplat...

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Bibliographic Details
Published in:Nano letters 2014-05, Vol.14 (5), p.2715-2719
Main Authors: Lhuillier, Emmanuel, Robin, Adrien, Ithurria, Sandrine, Aubin, Herve, Dubertret, Benoit
Format: Article
Language:English
Subjects:
Applied sciences
Chemical Sciences
Colloids
Condensed Matter
Construction
Cross-disciplinary physics: materials science
rheology
Detectors
Electrolytes
Electronics
Exact sciences and technology
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Material chemistry
Materials science
Molecular electronics, nanoelectronics
Nanocrystalline materials
Nanocrystals
Nanoscale materials and structures: fabrication and characterization
Nanostructure
Optoelectronics
Phototransistors
Physics
Quantum dots
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
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Summary:Colloidal nanocrystals are appealing candidates for low cost optoelectronic applications because they can combine the advantages of both organic materials, such as their easy processing, and the excellent performance of inorganic systems. Here, we report the use of two-dimensional colloidal nanoplatelets for photodetection. We show that the nanoplatelets photoresponse can be enhanced by two to three orders of magnitude when they are incorporated in an all solid electrolyte-gated phototransistor. We extend this technique to build the first colloidal quantum dot-based bicolor detector with a response switchable between the visible and near-IR.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl5006383