Ligand-Directed Growth Control for High-Performance Short-Wave Infrared Quantum Dot Photodetectors

Yihan Song; Youming Chen; Yiwen Li; Qian Chen; Andong Zhong; Haibo Zhu; Yihong Tang; Fan Fang; Yiwen Li; Haodong Tang; Jiaji Cheng; Yong Xia; Lin Song; Wei J. Chen

doi:10.1039/d5tc03823e

January 1, 2026Journal of Materials Chemistry C

Ligand-Directed Growth Control for High-Performance Short-Wave Infrared Quantum Dot Photodetectors

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Key Points

The aim is to enhance the performance of short-wave infrared photodetectors using ligand-directed growth of PbS quantum dots.
Utilized colloidal PbS quantum dots for photodetection.
Applied 1-octanethiol as a ligand to control growth.
Characterized surface defects and stacking configurations.
Significant reduction in surface defects observed.
Improved stacking configurations led to higher photodetection efficiency.
Demonstrated enhanced performance in SWIR imaging applications.

Implication

This research demonstrates improved performance in SWIR photodetectors using ligand-directed growth in quantum dots, suggesting enhanced imaging capabilities.

Abstract

Colloidal PbS quantum dots (QDs) are promising for short-wave infrared (SWIR) photodetection and imaging but intrinsically suffer from surface defects and poor stacking configuration in solids. Here, we employ 1-octanethiol...

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Cite This Study

Song et al. (2026) studied this question.

synapsesocial.com/papers/698585438f7c464f2300882d https://doi.org/10.1039/d5tc03823e

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Ligand-Directed Growth Control for High-Performance Short-Wave Infrared Quantum Dot Photodetectors

Key Points

Implication

Abstract

Discussion

Cite This Study

Ligand-Directed Growth Control for High-Performance Short-Wave Infrared Quantum Dot Photodetectors

Key Points

Implication

Abstract

Discussion

Cite This Study

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