Pith. sign in

REVIEW

Fast and efficient photodetection in nanoscale quantum-dot junctions

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1211.0456 v1 pith:WIIPOZX5 submitted 2012-11-02 cond-mat.mes-hall cond-mat.mtrl-sci

Fast and efficient photodetection in nanoscale quantum-dot junctions

Ferry Prins , Michele Buscema , Johannes S. Seldenthuis , Samir Etaki , Gilles Buchs , Maria Barkelid , Val Zwiller , Yunan Gao
show 3 more authors
Arjan J. Houtepen Laurens D. A. Siebbeles Herre S. J. van der Zant
This is my paper
classification cond-mat.mes-hall cond-mat.mtrl-sci
keywords quantum-dotchargeefficientjunctionsphotodetectoranotherbandwidthbridge
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
Share X Bluesky LinkedIn Reddit HN
read the original abstract

We report on a photodetector in which colloidal quantum-dots directly bridge nanometer-spaced electrodes. Unlike in conventional quantum-dot thin film photodetectors, charge mobility no longer plays a role in our quantum-dot junctions as charge extraction requires only two individual tunnel events. We find an efficient photoconductive gain mechanism with external quantum-efficiencies of 38 electrons-per-photon in combination with response times faster than 300 ns. This compact device-architecture may open up new routes for improved photodetector performance in which efficiency and bandwidth do not go at the cost of one another.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.