ArticleNanomaterials (Basel, Switzerland)2019
Uncooled Short-Wave Infrared Sensor Based on PbS Quantum Dots Using ZnO NPs.
Article in Nanomaterials (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Hyperspectral Imaging for Agricultural and Food Sensing: Applications, Data Analytics, and Deployment Challenges.Foods (Basel, Switzerland) · 2026Review
- Development of a Highly Reliable PbS QDs-Based SWIR Photodetector Based on Metal Oxide Electron/Hole Extraction Layer Formation Conditions.Nanomaterials (Basel, Switzerland) · 2025Article
- Solution-processed NOScientific reports · 2024Article
- High Sensitivity Shortwave Infrared Photodetector Based on PbS QDs Using P3HT.Nanomaterials (Basel, Switzerland) · 2021Article
- Progress in ZnO Nanosensors.Sensors (Basel, Switzerland) · 2021Review
- Low-Temperature Induced Enhancement of Photoelectric Performance in Semiconducting Nanomaterials.Nanomaterials (Basel, Switzerland) · 2021Review
- Improving of Sensitivity of PbS Quantum Dot Based SWIR Photodetector Using P3HT.Materials (Basel, Switzerland) · 2021Article
- Current-Mode Self-Amplified CMOS Sensor Intended for 2D Temperature Microgradients Measurement and Imaging.Sensors (Basel, Switzerland) · 2020Article
- Air-stable and ultrasensitive solution-cast SWIR photodetectors utilizing modified core/shell colloidal quantum dots.Nano convergence · 2020Article
- Nanostructured Lead Sulphide Depositions by AACVD Technique Using Bis(Isobutyldithiophosphinato)Lead(II) Complex as Single Source Precursor and Its Impedance Study.Nanomaterials (Basel, Switzerland) · 2020Article
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Authors and funding
8 authors.
Funding
Abstract
Shortwave infrared (SWIR) sensors have attracted interest due to their usefulness in applications like military and medical equipment. SWIR sensors based on various materials are currently being studied. However, most SWIR detectors need additional optical filters and cooling systems to detect specific wavelengths. In order to overcome these limitations, we proposed a solution processed SWIR sensor that can operate at room temperature using lead chloride (PbS) QDs as a photoactive layer. Additionally, we adapted zinc oxide (ZnO) nanoparticles (NPs) as an electron transport layer (ETL) to improve the sensitivity of a PbS SWIR sensor. In this study, PbS SWIR sensors with and without a ZnO NPs layer were fabricated and their current-voltage (I-V) characteristics were measured. The on/off ratio of the PbS SWIR sensor with ZnO NPs was 2.87 times higher than that of the PbS SWIR sensor without ZnO NPs at the maximum current difference. The PbS SWIR sensor with ZnO NPs showed more stable current characteristics than that without ZnO NPs because of the ZnO NPs' high electron mobility and proper lowest unoccupied molecular orbital (LUMO) level.
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