ArticleAdvanced materials (Deerfield Beach, Fla.)2025
Control Over Metal-Halide Reactivity Enables Uniform Growth of InSb Colloidal Quantum Dots for Enhanced SWIR Light Detection.
Article in Advanced materials (Deerfield Beach, Fla.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Advances in Se Wide-Bandgap Photovoltaics and TeAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Colloidal InSb Quantum Dots for eSWIR Photodetection via Decoupling Nucleation and Growth.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Automated synthesis of InSb quantum dots with improved batch-to-batch reproducibility via kinetically matched co-reduction.Nature communications · 2026Article
- Internal field tailoring enables low noise high speed colloidal quantum dot photodetectors beyond 1500 nm.Nature communications · 2026Article
- Synthesis of monodisperse InSb colloidal quantum dots by monomer concentration control for short-wave infrared photodetectors.Nature communications · 2026Article
- Time-Resolved Intrinsic and Extrinsic Photoresponse of Colloidal Short-Wavelength Infrared-Active Indium Antimonide Quantum Dot Photodetectors.Small science · 2025Article
- Nucleophilic Covalent Ligands Enable Simultaneous Surface Reconstruction and Passivation of Colloidal InSb Quantum Dots for Stable Short-Wave Infrared Photodetectors.Angewandte Chemie (International ed. in English) · 2025Article
- Shortwave Infrared Light Detection and Ranging Using Silver Telluride Quantum Dots.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Control Over Metal-Halide Reactivity Enables Uniform Growth of InSb Colloidal Quantum Dots for Enhanced SWIR Light Detection.Advanced materials (Deerfield Beach, Fla.) · 2025Article
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12 authors.
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Abstract
InSb colloidal quantum dots (CQDs) hold promise in short-wave infrared sensing; however, their synthesis presents ongoing challenges, particularly in achieving precise size control - this is the result of poorly controlled reactivity among the precursors. Herein, the use of alkyl-phosphine and amine-based organic additives to control the reactivity of In and Sb precursors during the nucleation and growth of CQDs is developed. This interplay between organic additive and precursors enables the synthesis of InSb CQDs having narrowed size distributions; and bandgaps tunable across the 1.2-1.5 µm spectral range; all this leading to peak-to-valley ratios >1.4 in absorption spectra. The CQDs are surface-terminated with a mixture of oleylamine, halides, and oxide-like species, and this hinders ligand exchange reactions and subsequent integration into photodiodes. We therefore resurface the CQDs with alkanethiols, displacing the native ligands via an acid-base mechanism, an approach that removes oxide species. Using a layer-by-layer fabrication process, the ligands of the resurfaced InSb CQDs are exchanged with short organic and halide ligands and incorporated films into n-i-p photodiode structures. The resultant devices exhibit a detectivity of 10¹
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