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DOAJ Open Access 2025

Enhanced photocurrent and responsivity of PbS quantum Dot/ZnO nanoparticle films with amine passivation

Po-Hsun Chen Nguyet.N.T. Pham Pei-Cheng Huang Yu-Sian Lin Chia-Tien Peng +3 lainnya
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Abstrak

This study investigated a combination of PbS quantum dots (QDs) and ZnO nanoparticles (NPs) layers in photodiodes for photodetection. Oxygen vacancies in ZnO NPs have been known to be recombination trap sites, hindering carrier transportation. We used various amines to passivate the oxygen vacancy of ZnO NPs. It is found that ethanolamine (EA) is the most effective in reducing the surface oxygen vacancies of ZnO, exhibiting a five-fold increase in electron mobility, enhancing PbS QD photodiode responsivity to 278.8 A/W and achieving an external quantum efficiency (EQE) of 36,700% under bias, and increasing the detectivity ∼ 15.5 folds to 8.14 × 10¹² Jones compared with the pure ZnO device. This demonstrates the potential of amines as passivation agents to improve PbS photodiode performance with ZnO NPs as the electron transport layer (ETL).

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials Industrial electrochemistry

Penulis (8)

P

Po-Hsun Chen

N

Nguyet.N.T. Pham

P

Pei-Cheng Huang

Y

Yu-Sian Lin

C

Chia-Tien Peng

C

Cheng-Hsing Lin

C

Chih-Ching Chang

H

Hsueh-Shih Chen

Format Sitasi

APA MLA BibTeX
Chen, P., Pham, N., Huang, P., Lin, Y., Peng, C., Lin, C. et al. (2025). Enhanced photocurrent and responsivity of PbS quantum Dot/ZnO nanoparticle films with amine passivation. https://doi.org/10.1016/j.apsadv.2025.100705

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Informasi Jurnal
Tahun Terbit
2025
Sumber Database
DOAJ
DOI
10.1016/j.apsadv.2025.100705
Akses
Open Access ✓