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Peer-reviewedCC BY 4.0Inorganics

Printed High-Performance Visible-Light Photodetectors Using CsPbBr3 Perovskite Quantum Dots and Integrated Lithography

  • Amal M. Al-Amri1
  • Ghadah Al-Harbi2
  • Roaa Sait2
  • Nazek El Atab3
  • Camelia Florica4
  • Ahad Syed4
4 affiliations
  1. 1Department of Physics, College of Science and Arts, King Abdulaziz University, Rabigh 21911, Saudi Arabia
  2. 2Department of Physics, King Abdulaziz University, Jeddah 21589, Saudi Arabia
  3. 3Electrical and Computer Engineering Program (ECE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
  4. 4Core Laboratories, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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Abstract

This study introduces a novel fabrication strategy that combines photolithography with printed electronics to develop high-performance photodetectors (PDs) operating in the visible spectrum. CsPbBr3 perovskite quantum dot (QD)-based PDs with varying layer configurations were fabricated and characterized under 405 nm laser illumination at various intensities. The QDs were deposited onto pre-patterned, Au-coated substrates using a piezoelectric inkjet printer under ambient conditions. Under zero-bias operation, the optimized bilayer (2L) device exhibited an ultra-low dark current of 1.10 × 10−11 A, an elevated light current of 1.20 × 10−10 A, and an absolute photocurrent of 1.09 × 10−10 A. This configuration demonstrated excellent performance metrics, including a strong ON/OFF current ratio of 10.91, a calculated responsivity of 1.36 × 10−9 A/W, and a shot-noise-limited specific detectivity of 6.07 × 105 Jones. Furthermore, the device showed stable, self-powered operation under visible light, confirming its energy-efficient sensing capabilities. This work highlights the immense potential of hybrid lithographic and printing techniques for producing low-cost, scalable, and flexible perovskite-based photodetectors, providing a promising framework for next-generation optoelectronic systems, including wearable and environmental sensing technologies.

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Cite

BibTeXRIS
BibTeX
@article{alamri2026printed,
  title = {{Printed High-Performance Visible-Light Photodetectors Using CsPbBr3 Perovskite Quantum Dots and Integrated Lithography}},
  author = {Amal M. Al-Amri and Ghadah Al-Harbi and Roaa Sait and Nazek El Atab and Camelia Florica and Ahad Syed},
  journal = {Inorganics},
  year = {2026},
  month = oct,
  doi = {10.3390/inorganics14100262},
  url = {https://www.mdpi.com/2304-6740/14/10/262},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Printed High-Performance Visible-Light Photodetectors Using CsPbBr3 Perovskite Quantum Dots and Integrated Lithography
AU  - Amal M. Al-Amri
AU  - Ghadah Al-Harbi
AU  - Roaa Sait
AU  - Nazek El Atab
AU  - Camelia Florica
AU  - Ahad Syed
PY  - 2026
DA  - 2026/10/14
JO  - Inorganics
DO  - 10.3390/inorganics14100262
UR  - https://www.mdpi.com/2304-6740/14/10/262
AB  - This study introduces a novel fabrication strategy that combines photolithography with printed electronics to develop high-performance photodetectors (PDs) operating in the visible spectrum. CsPbBr3 perovskite quantum dot (QD)-based PDs with varying layer configurations were fabricated and characterized under 405 nm laser illumination at various intensities. The QDs were deposited onto pre-patterned, Au-coated substrates using a piezoelectric inkjet printer under ambient conditions. Under zero-bias operation, the optimized bilayer (2L) device exhibited an ultra-low dark current of 1.10 × 10−11 A, an elevated light current of 1.20 × 10−10 A, and an absolute photocurrent of 1.09 × 10−10 A. This configuration demonstrated excellent performance metrics, including a strong ON/OFF current ratio of 10.91, a calculated responsivity of 1.36 × 10−9 A/W, and a shot-noise-limited specific detectivity of 6.07 × 105 Jones. Furthermore, the device showed stable, self-powered operation under visible light, confirming its energy-efficient sensing capabilities. This work highlights the immense potential of hybrid lithographic and printing techniques for producing low-cost, scalable, and flexible perovskite-based photodetectors, providing a promising framework for next-generation optoelectronic systems, including wearable and environmental sensing technologies.
SN  - 2304-6740
ER  -