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Seo J, Kim S, Yeo D, Gwak N, Oh N. Pnictide-based colloidal quantum dots for infrared sensing applications. NANO CONVERGENCE 2025; 12:26. [PMID: 40439823 PMCID: PMC12122974 DOI: 10.1186/s40580-025-00489-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2025] [Accepted: 04/27/2025] [Indexed: 06/02/2025]
Abstract
Pnictide-based quantum dots (QDs) have emerged as promising materials for next-generation infrared photodetectors due to their superior physical and electrical properties. Among them, InAs and InSb QDs are particularly attractive for their tunable bandgaps in the short-wave infrared (SWIR) region, high carrier mobility, and compatibility with solution-based, large-area, and low-cost fabrication processes. This review discusses recent advancements in the synthesis of InAs and InSb QDs, focusing on precursor strategies and surface engineering techniques to enhance their optical and electronic properties. Additionally, we explore their integration into infrared photodetectors, analyzing current performance and limitations. Finally, we outline future research directions aimed at further enhancing material properties and device performance, paving the way for the broader adoption of III-V QDs in next-generation infrared technologies.
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Affiliation(s)
- Jaeyoung Seo
- Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Seongchan Kim
- Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Dongjoon Yeo
- Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Namyoung Gwak
- Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Nuri Oh
- Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
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Cao F, Shi Y, Zhang W, Liu X, Tang X, Han Z, Zhang L, Sun B. Self-powered all-quantum dot based broadband photodetectors for color imaging and heart rate monitoring. JOURNAL OF MATERIALS CHEMISTRY C 2024; 12:12124-12130. [DOI: 10.1039/d4tc01805b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2025]
Abstract
All-quantum dot based self-powered broadband (300–1000 nm) photodetectors (SnO2 QDs/PbS-I QDs/PbS-EDT QDs) were successfully fabricated, showing great potential in long-distance color recognition imaging and human heartbeat monitoring.
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Affiliation(s)
- Fa Cao
- State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunication (NJUPT), Nanjing 210023, P. R. China
| | - Yi Shi
- State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunication (NJUPT), Nanjing 210023, P. R. China
| | - Wei Zhang
- School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China
| | - Xiao Liu
- State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunication (NJUPT), Nanjing 210023, P. R. China
| | - Xu Tang
- State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunication (NJUPT), Nanjing 210023, P. R. China
| | - Zeyao Han
- State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunication (NJUPT), Nanjing 210023, P. R. China
| | - Li Zhang
- State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunication (NJUPT), Nanjing 210023, P. R. China
| | - Bin Sun
- State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials (IAM), School of Material Science and Engineering, Nanjing University of Posts and Telecommunication (NJUPT), Nanjing 210023, P. R. China
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