What does this research mean for the field?

O+ ion implantation in PbSe thin films serves as an effective defect engineering strategy that reduces band tail disorder and enhances carrier separation, resulting in high-performance uncooled mid-wave infrared photodetectors with exceptional carrier mobility and responsivity. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to improve the performance of uncooled mid-wave infrared photodetectors using O+ ion implantation in PbSe.

June 7, 2026Applied Physics Letters

High-performance nanostructured uncooled MWIR PbSe photodetectors enabled by low-damage O+ ion implantation

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Authors

SMShaoBo Ma WOWeixin OuYang FLF M Liu

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Overview

Randomized trial evaluates enhanced photodetector performance in MWIR applications, indicating improvement through O+ ion implantation.

Key Points

This research aims to improve the performance of uncooled mid-wave infrared photodetectors using O+ ion implantation in PbSe.
Proposed a low-damage design through O+ ion implantation in PbSe.
Analyzed the effects of implantation dose on surface morphology, Urbach energy, and optical bandgap.
Measured responsivity and detectivity under controlled conditions with specified parameters (bias voltage of 15 V, frequency of 400 Hz).
Achieved peak responsivity of 2.1 A/W at 4 μm wavelength with detectivity of 2.3 × 10^9 Jones at 300 K.
Reduced Urbach energy from 136.9 to 53.37 meV, indicating fewer defects and improved photodetection characteristics.
Obtained carrier mobility between 4480 and 8320 cm² V⁻¹ s⁻¹, enhancing photogenerated carrier collection efficiency.

Cite This Study

Ma et al. (2026) studied this question.

synapsesocial.com/papers/6a250bca7def13d035e1bc45 https://doi.org/10.1063/5.0331769

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June 7, 2026Applied Physics Letters

High-performance nanostructured uncooled MWIR PbSe photodetectors enabled by low-damage O+ ion implantation

View Full Paper

Ask AI

Bookmark

Authors

SMShaoBo Ma WOWeixin OuYang FLF M Liu

Discussion

Member takes

Overview

Randomized trial evaluates enhanced photodetector performance in MWIR applications, indicating improvement through O+ ion implantation.

Key Points

This research aims to improve the performance of uncooled mid-wave infrared photodetectors using O+ ion implantation in PbSe.
Proposed a low-damage design through O+ ion implantation in PbSe.
Analyzed the effects of implantation dose on surface morphology, Urbach energy, and optical bandgap.
Measured responsivity and detectivity under controlled conditions with specified parameters (bias voltage of 15 V, frequency of 400 Hz).
Achieved peak responsivity of 2.1 A/W at 4 μm wavelength with detectivity of 2.3 × 10^9 Jones at 300 K.
Reduced Urbach energy from 136.9 to 53.37 meV, indicating fewer defects and improved photodetection characteristics.
Obtained carrier mobility between 4480 and 8320 cm² V⁻¹ s⁻¹, enhancing photogenerated carrier collection efficiency.

Cite This Study

Ma et al. (2026) studied this question.

synapsesocial.com/papers/6a250bca7def13d035e1bc45 https://doi.org/10.1063/5.0331769

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