ArticleNature communications2026
Internal field tailoring enables low noise high speed colloidal quantum dot photodetectors beyond 1500 nm.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
2 citing papers in PubMed.
- Solution-phase transition zones govern crystallographic perfection in metal halide perovskite single crystals.Nature communications · 2026Article
- Ligand-Mediated Shape Engineering of SWIR InAs Colloidal Quantum Dots for Photodetector Applications.Advanced materials (Deerfield Beach, Fla.) · 2026Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Colloidal quantum dots are attractive for short-wave infrared photodetectors owing to their solution processability and tunable bandgaps. However, excessive dark current remains an issue for low bandgap absorbers, where generation-recombination and tunneling currents become prominent. Diode architectures for photocarrier extraction rely on strong internal electric fields, which can amplify these leakage pathways. Here, we introduce a field-tailoring strategy to reshape the internal field distribution and suppress leakage currents. Using an indium arsenide absorber and a wide-bandgap p-type indium arsenide hole transport layer, we modulate the doping density via carbazole-based phosphonic acid ligands, enabling tuning of the internal field and band alignment. The device exhibits a dark current of 9.7 × 10⁻⁴ mA cm⁻² at -0.2 V, with a response time of 24 ns and a detectivity of 5 × 10¹¹ Jones at 1500 nm. The approach is extended to inverted architecture, demonstrating low-noise, high-speed photodetection beyond 1500 nm.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.