《纳米研究(英文)》2024年第12期目录

Catalytic

Review Article

S-scheme quantum dots heterojunction photocatalysts: Assembly types, mechanism insights, and design strategies

Jin-Tao Ru, Chen-Ho Tung, and Li-Zhu Wu*

This review is to elucidate how combining the unique quantum dots in S-scheme to construct high-efficient charge separation-transfer-reaction systems. Advanced characterization techniques on built-in electric field, steady-state and transient charge transfer processes, and surface photochemical reactions are used to analyze the S-scheme quantum dot heterojunction photocatalysts. Insights from surface modulation, interface construction, and heterojunction design perspectives are discussed.

Nano Research, 2024, 17(12), 10259–10278

https://doi.org/10.1007/s12274-024-6904-2

Research Articles

Heterostructures of Ni(II)-doped CdS quantum dots and β-Pb_0.33V₂O₅ nanowires: Enhanced charge separation and redox photocatalysis via doping of QDs

Karoline E. García-Pedraza, Jaime R. Ayala, Udani Wijethunga, Alice R. Giem, George Agbeworvi, Sarbajit Banerjee*, and David F. Watson*

Heterostructures of Ni(II)-doped CdS quantum dots (QDs) and β-Pb_0.33V₂O₅ nanowires, tethered via L-cysteine, photocatalytically reduce CO₂ to CO, CH₄, and HCO₂H. The ultrafast transfer of photogenerated holes from Ni(II)-doped CdS QDs to the mid-gap states of β-Pb_0.33V₂O₅ underpins photocatalysis.

Nano Research, 2024, 17(12), 10279–10291

https://doi.org/10.1007/s12274-024-6675-5

CdS quantum dot aerogels for photocatalytic hydrogen evolution

Vinicius Alevato, Daniel Streater, Cole Premtaj, Jier Huang, and Stephanie L. Brock*

The oxidative assembly of CdS quantum dots (QD) adopting wurtzite (w) or zinc blende (zb) structures into gels (AG), and subsequent annealing up to 300 °C under inert atmosphere resulted in increased exciton delocalization. Exciton delocalization correlates to enhanced visible-light photocatalytic hydrogen evolution for samples annealed up to 250 °C, after which activity drops due to sintering and loss of surface area.

Nano Research, 2024, 17(12), 10292–10301

https://doi.org/10.1007/s12274-024-7107-2

Energy

Research Article

CsPbI₂Br epitaxial shell for efficient PbS quantum dot solar cells

Sami Ur Rahman, Yong-Hui Song, Zhen-Yu Ma, Xiao-Lin Tai, Bai-Sheng Zhu , Yi-Chen Yin, Li-Zhe Feng , Jing-Ming Hao, Guan-Jie Ding , Kuang-Hui Song, Ya-Lan Hu, Tieqiang Li, Jixian Xu, and Hong-Bin Yao*

This work demonstrates the synthesis of PbS-CsPbI₂Br core-shell quantum dots (QDs) via hot injection, significantly enhancing the performance of PbS QDs in solar cells. The resulting architecture achieves a power conversion efficiency of 8.43%, doubling that of pristine PbS QDs.

Nano Research, 2024, 17(12), 10302–10308

https://doi.org/10.1007/s12274-024-6988-4

Nano biology

Review Article

Recent progress on eco-friendly quantum dots for bioimaging and diagnostics

Yanbing Lv, Lifang Zhang, Ruili Wu*, and Lin Song Li*

This review summarizes the progress of eco-friendly quantum dots (QDs) for biomedical applications, including their designed preparation, optical properties, surface modification, and their applications in bioimaging and diagnostics.

Nano Research, 2024, 17(12), 10309–10331

https://doi.org/10.1007/s12274-024-6926-5

Nano detection

Review Article

Single quantum dot spectroscopy for exciton dynamics

Bin Li, Guofeng Zhang*, Yuke Gao, Xiaopeng chen, Ruiyun Chen, Chengbing Qin, Jianyong Hu, Ruixiang Wu, Liantuan Xiao*, and Suotang Jia

This paper reviews recent progress in exciton dynamics revealed by single-quantum dot (QD) spectroscopy, focusing on the exciton and biexciton dynamics of single colloidal CdSe-based QDs and perovskite QDs.

Nano Research, 2024, 17(12), 10332–10345

https://doi.org/10.1007/s12274-024-6504-x

Research Articles

Mechanisms for electric field induced color change in coupled colloidal quantum dot molecules revealed by low temperatures single particle spectroscopy

Yossef E. Panfil, Adar Levi, Somnath Koley, Einav Scharf, Yonatan Ossia, and Uri Banin*

Low-temperature single coupled quantum dots molecules (CQDM) spectroscopy under an electric field reveals several mechanisms that contribute to the spectral change.

Nano Research, 2024, 17(12), 10346–10354

https://doi.org/10.1007/s12274-024-6835-7

Unveiling multimodal hot carrier excitation in plasmonic bimetallic Au@Ag nanostars for photochemistry and SERS sensing

Yoel Negrín-Montecelo, Amir Elsaidy, Jesús Giráldez-Martínez, Enrique Carbó-Argibay, Zhiming Wang, Alexander O. Govorov*, Ramon A. Alvarez-Puebla*, Miguel A. Correa-Duarte*, and Lucas V. Besteiro*

Bimetallic plasmonic nanostars exhibit exceptional capabilities for surface-enhanced Raman scattering (SERS) and photochemistry, attributed to the strong plasmonic response of their tips for generation of hot electrons.

Nano Research, 2024, 17(12), 10355–10362

https://doi.org/10.1007/s12274-024-6950-5

Single-particle photoluminescence connects thermal processing with heterogeneity in the trap distribution of cesium lead bromide nanocrystals

Dong Wang, Jie Chen, Dongyan Zhang, Dariusz M. Niedzwiedzki, Richard A. Loomis, and Bryce Sadtler*

Single-particle photoluminescence microscopy reveals how thermal annealing changes the distribution of trap states in core/shell cesium lead bromide/silica nanocrystals.

Nano Research, 2024, 17(12), 10363–10375

https://doi.org/10.1007/s12274-024-6989-3

Nano device

Review Articles

Operando investigation of nanocrystal-based device energy landscape: Seeing the current pathway

Mariarosa Cavallo, Dario Mastrippolito, Erwan Bossavit, Leonardo Curti, Adrien Khalili, Huichen Zhang, Nicolas Ledos, Yoann Prado, Erwan Dandeu, Michael Rosticher, Sandrine Ithurria, Pavel Dudin, José Avila*, Debora Pierucci, and Emmanuel Lhuillier*

We unveil the potential of photoemission microscopy as in-situ probe for mapping the energy landscape of nanocrystal-based optoelectronic devices operando.

Nano Research, 2024, 17(12), 10376–10385

https://doi.org/10.1007/s12274-024-6622-5

Research progress of quantum dot photolithography patterning and direct photolithography application

Zhong Chen, Yu Li, Zhongwei Man*, and Aiwei Tang*

This review summarizes various methods of quantum dot (QD) photolithography patterning, including traditional photolithography, lift off, and direct photolithography, with a primary focus on direct photolithography.

Nano Research, 2024, 17(12), 10386–10411

https://doi.org/10.1007/s12274-024-6896-7

Colloidal II-VI nanoplatelets for optoelectronic devices: Progress and perspectives

An Hu, Li Ma, Xiaoyu Yang, Yige Yao, Yunke Zhu, Jingjing Qiu, Shuang Wang, Changjun Lu*, and Yunan Gao*

Colloidal II-VI nanoplatelets (NPLs) have vast potential in high-performance optoelectronic devices. This review emphasizes that the control of the symmetrical shell growth of NPLs is critical for the practical utilization of the advantages of NPLs in these devices.

Nano Research, 2024, 17(12), 10412–10425

https://doi.org/10.1007/s12274-024-6965-y

Advancement in QDs for optoelectronic applications and beyond

Memoona Qammar, Max J. H. Tan, Pengbo Ding, Jianchao Ge, Yinthai Chan*, and Jonathan E. Halpert*

This work delves into the evolving domain of quantum dots (QDs), highlighting their pivotal role in advancing technologies like light-emitting devices (LEDs), displays, lasers, and quantum computing. By exploring the latest developments and applications, we unveil the transformative potential of QDs in shaping the future of optoelectronics and quantum information processing.

Nano Research, 2024, 17(12), 10426–10445

https://doi.org/10.1007/s12274-024-6982-x

Research Articles

A record-breaking low turn-on voltage blue QLED via reducing built-in potential

Run Wang, Hengyang Xiang*, Chi Zhang, Hongyang Li, Yuqin Su, Qi Chen*, Qinye Bao, Gaoran Li, and Haibo Zeng*

In this work, we introduced the built-in potential to explain low-driving issues, providing a new strategy for developing low-power consumption quantum dot light-emitting diodes (QLEDs). Finally, we developed a blue QLED with a break-recording V_turn-on (2.2 V@1 cd/m²).

Nano Research, 2024, 17(12), 10446–10452

https://doi.org/10.1007/s12274-024-6570-0

Nanoshell-driven carrier engineering of large quantum dots enables ultra-stable and efficient LEDs

Dandan Zhang, Jianshun Li, Lei Wang*, Yaqi Guo, Weipeng Liu, Qingli Lin, Lin Song Li, and Huaibin Shen*

Nanoshell-driven engineering of energy level positions and band bending effectively eliminates the hole injection barrier and increases quasi-Fermi level splitting, promoting the charge injection balance and heat generation suppression for large quantum dot (QD) light-emitting diodes (QLEDs). Our devices exhibit a high external quantum efficiency of 26.44% and an ultralong operation time (exceeding 50,000 h) to 95% of the initial luminance at 1000 cd/m² (T₉₅@1000 cd/m²).

Nano Research, 2024, 17(12), 10453–10459

https://doi.org/10.1007/s12274-024-6899-4

Photosensitizer-assisted direct 2D patterning and 3D printing of colloidal quantum dots

Wenyue Qing, Yilong Si, Mingfeng Cai, Likuan Zhou, Longjia Wu, Zhengwei Hou, Dan Liu, Xiaoli Tian, Wangyu Liu, Linhan Lin, and Hao Zhang*

This work developed a photosensitizer-assisted approach for direct two-dimensional (2D) photopatterning and three-dimensional (3D) printing of quantum dots, which enables patterning with mild h-line ultraviolet (UV) light and better preserves the luminescent properties of quantum dots.

Nano Research, 202417(12), 10460–10466

https://doi.org/10.1007/s12274-024-6947-0

Real-time fluorescent detection of food spoilage with doped quantum dots-anchored hydrogel sensor

Chenying Li, Jianzhong Li, Lei Ji, Yibin Zhu, Jiajia Liu*, and Jiatao Zhang*

An innovative system for real-time food freshness detection, based on a fluorescence sensing hydrogel with doped quantum dots, is combined with a mobile application, leveraging the unique optical properties of quantum dots to deliver precise and immediate assessments of food quality.

Nano Research, 2024, 17(12), 10467–10475

https://doi.org/10.1007/s12274-024-6957-y

Pure-blue emissive ZnSe/Cd_xZn_1−xS/ZnS quantum dots with type-II core-shell structure for display application

Mingrui Liu, Chenhui Wang, Peng Huang, Jinhua He, Muhammad Ramzan, and Haizheng Zhong*

Pure-blue emissive ZnSe/Cd_xZn_1−xS/ZnS quantum dots with type-II core-shell structure show high photoluminescence quantum yield (PLQY) over 90% from 444 to 479 nm.

Nano Research, 2024, 17(12), 10476–10482

https://doi.org/10.1007/s12274-024-7106-3

Switchable near-infrared photoluminescence of PbS quantum dots through light and heat modulated hole transfer to spiropyran molecules

Zongwei Chen*, Zhengxiao Li, Fan Li, Jingzhu Huo, Xinyi Meng, Shihao Ma, Wenbo Zhu, Fengqi Guo, Jia-Hua Hu*, and Kaifeng Wu*

We present light and heat triggered modulation of the near-infrared (NIR) photoluminescence (PL) of PbS quantum dots (QDs) using adjacent spiropyran derivatives. Not only does this study for the first time extend the reach of QD-molecule switchable PL systems to the multi-stimuli, NIR region, but the fundamental insights revealed here by transient studies also offer a general guideline for the design of charge-transfer-based photoswitches.

Nano Research, 2024, 17(12), 10483–10489

https://doi.org/10.1007/s12274-024-7109-0

Nano unit

Review Articles

Emergent quantum properties from low-dimensional building blocks and their superlattices

Ken Seungmin Hong, Ou Chen*, and Yusong Bai*

In celebration of the 2023 Nobel prize in Chemistry, we review the field of low-dimensional materials with special emphasis on preparations and investigations of zero-dimensional (0D) quantum dots, one-dimensional (1D) carbon nanotubes, and two-dimensional (2D) van der Waals materials and their superlattices. We also highlight the quantum properties of individual low-dimensional materials and the emergent phenomena from their superlattices.

Nano Research, 2024, 17(12), 10490–10510

https://doi.org/10.1007/s12274-024-6984-8

Colloidal nanocrystals: Viable model systems for electronic quantum materials?

Jara F. Vliem, Jesper R. Moes, Ingmar Swart, and Daniel Vanmaekelbergh*

Can colloidal nanocrystals form viable model systems for electronic quantum materials? We explore how chemical knowledge can aid in understanding the underlying physics of topological insulators, paving the way for devices based on the quantum spin Hall effect.

Nano Research, 2024, 17(12), 10511–10524

https://doi.org/10.1007/s12274-024-6986-6

Research Articles

Quantum dot microsphere laser levitated in the air

Guihai Li, Ruixiang Liu, Lei Wang, Jianshun Li, Jingchun Li, Xiaoting Yang, Huaibin Shen, and Fengjia Fan*

Microspheres composed of self-assembled colloidal quantum dots are optically levitated in the air, exhibiting whispering gallery mode lasing under the photoexcitation of a femtosecond pulse laser.

Nano Research, 2024, 17(12), 10525–10528

https://doi.org/10.1007/s12274-024-6727-x

Development of aqueous-phase CdSeS magic-size clusters at room temperature and quantum dots at elevated temperatures

Yao Jiang, Zhe Wang, Shasha Wang, Chunchun Zhang, Chaoran Luan, Xiaoqin Chen*, and Kui Yu*

The approach to the development of aqueous-phase CdSeS magic-size clusters (MSCs) and quantum dots (QDs) is proposed. At 25 °C, the precursor compound of CdSeS MSC-380 (PC-380) forms via chemical self-assembly in the reaction of CdCl₂/3-mercaptopropionic acid (MPA), selenourea (SeU), and thioacetamide (TAA). Primary amine butylamine (BTA) assists the PC to MSC transformation. At 80 °C, the PC fragments to monomers, followed by the nucleation and growth of CdSeS QDs. Our findings suggest that PC-380 forms prior to the nucleation and growth of CdSeS QDs.

Nano Research, 2024, 17(12), 10529–10535

https://doi.org/10.1007/s12274-024-6884-y

Semiconductor

Review Articles

Photophysics of halide perovskite nanocrystal quantum dots

Yoshihiko Kanemitsu*

Halide perovskite nanocrystal quantum dots show multipeak luminescence structures related to excitons, trions, and biexcitons at low temperatures.

Nano Research, 2024, 17(12), 10536–10542

https://doi.org/10.1007/s12274-024-6822-z

Structurally altered size, composition, shape and interface-dependent optical properties of quantized nanomaterials

Neng Qin, Hui Han, Guijian Guan*, and Ming-Yong Han*

Through top-down or bottom-up strategies, a great variety of quantum dots (QDs) are facilely synthesized and are classified as semiconductor QDs, carbon QDs, perovskite QDs, and metal QDs (i.e., metal nanoclusters). These QDs exhibit structurally altered, size, composition, shape, and interface-dependent optical properties, offering the effective methods to readily achieve greatly improved performances such as wide absorption, tunable emission, high quantum yield, and long fluorescence lifetime.

Nano Research, 2024, 17(12), 10543–10569

https://doi.org/10.1007/s12274-024-6839-3

All-quantum-dot information system

Junpeng Chen, Chensheng Dai, Yuxuan Zheng, Ding Zhao, and Jie Bao*

We prove that quantum dots have the ability to serve as core components with high-density characteristics in various modules of information systems due to their broad tunability and wavelength flexibility. We provide comprehensive methods and paradigms for designing quantum dot information systems and build a prototype of an all-quantum-dot information system.

Nano Research, 2024, 17(12), 10570–10584

https://doi.org/10.1007/s12274-024-6911-z

Rational design and structural regulation of near-infrared silver chalcogenide quantum dots

Zhen-Ya Liu, Wei Zhao, Li-Ming Chen, Yan-Yan Chen, Zhi-Gang Wang*, An-An Liu*, and Dai-Wen Pang*

Silver chalcogenides (Ag₂E; E = S, Se, or Te) quantum dots (QDs) have emerged as promising candidates for near-infrared (NIR) applications. The paper reviews the recent advances in the rational design and precise structural regulation of Ag₂E QDs, encompassing aspects such as size control, crystal structure engineering, and surface/interface engineering.

Nano Research, 2024, 17(12), 10585–10606

https://doi.org/10.1007/s12274-024-6958-x

Instability of colloidal lead halide perovskite nanocrystals: Causes, improvement, and evaluation

Thi Kim Tran Tran, Hawi N. Nyiera, and Jing Zhao*

This review explores the causes of instability in lead halide perovskite nanocrystals and presents recent methods to enhance their stability while proposing evaluation criteria and highlighting future research needs.

Nano Research, 2024, 17(12), 10607–10619

https://doi.org/10.1007/s12274-024-6975-9

NIR-II silver-based quantum dots: Synthesis and applications

Ziyan Zhang, Hongchao Yang*, Mingzhe Wang, Yejun Zhang, Jiang Jiang, and Qiangbin Wang*

This review summarizes the synthesis strategies, fluorescence modulation methods, and optoelectronic applications of silver-based quantum dots emitting in the second near-infrared window.

Nano Research, 2024, 17(12), 10620–10643

https://doi.org/10.1007/s12274-024-6977-7

Research Articles

Revealing the origin of the photo-instability to improve the performance of PbS quantum dot solar

Chunyan Wu, Jinpeng Yang, Shuo Ding, Tengzuo Huang, Tao Sun*, Lei Qian, and Chaoyu Xiang*

The reason why the as-prepared lead sulfide quantum dots (PbS QDs) solar cell is unstable under initial light illumination has been revealed, which comes from the reaction between the 1,2-ethanedithiol (EDT) and PbX2. To overcome this issue, an interfacial layer was introduced to block the reaction.

Nano Research, 2024, 17(12), 10644–10648

https://doi.org/10.1007/s12274-024-6462-3

Extremely long-lived charge separation and related carrier spin excitation in CsPbBr₃ perovskite quantum dots with an electron acceptor benzoquinone

Lin Cheng, Rongrong Hu, Meizhen Jiang, Yumeng Men, Yang Wang, Jinlei Li, Tianqing Jia, Zhenrong Sun, and Donghai Feng*

Before laser illumination, the spin signal is weak. After 35 min laser illumination, the spin signal increases significantly due to the accumulation of charge separation which lives over a dozen days.

Nano Research, 2024 17(12), 10649–10654

https://doi.org/10.1007/s12274-024-6466-z

One-pot synthesis of Cu:InP multishell quantum dots for near-infrared light-emitting devices

Pan Huang, Xiaonan Liu, Xiao Liu, Jing Wei, Fangze Liu*, and Hongbo Li*

Copper-doped InP core–shell near-infrared quantum dots are synthesized with a high photoluminescence quantum yield of 70% centered at 833 nm. Near-infrared lighting emitting diodes exhibit a maximum radiance of 3.1 W·sr⁻¹·m⁻² and a peak external quantum efficiency of 2.71%.

Nano Research, 2024, 17(12), 10655–10660

https://doi.org/10.1007/s12274-024-6906-0

Alkali metal carboxylates as non-polar-facet ligands for the synthesis of colloidal quantum dots

Li Luo, Xiaolan Zhou, Xiaozhi Xu, Zhuo Zhao, and Chaodan Pu*

Alkali metal carboxylate can function as the ligands for the non-polar facets and stabilize colloidal quantum dots (CQDs) even synthesized with excess anion precursors.

Nano Research, 2024, 17(12), 10661–10668

https://doi.org/10.1007/s12274-024-6987-5

Impact of exciton fine structure on the energy transfer in magic-sized (CdSe)₁₃ clusters

Jan Bieniek, Woonhyuk Baek, Severin Lorenz, Franziska Muckel, Rachel Fainblat, Taeghwan Hyeon, and Gerd Bacher*

Due to the sub-nanometer size and the resulting strong quantum confinement, magic-sized (CdSe)₁₃ clusters exhibit a pronounced and well separated excitonic fine structure. The occurrence of deep trap emission and the ability of efficient Mn²⁺  doping enables the experimental investigation of the energy transfer from excited excitonic fine structure states to emitting states arising from surface traps (ST) or Mn²⁺ dopants.

Nano Research, 2024, 17(12), 10669–10676

https://doi.org/10.1007/s12274-024-7108-1

Synthesis

Research Article

Continuous flow synthesis of PbS/CdS quantum dots using substituted thioureas

Pierre Machut, Anna Karina Antonini, Céline Rivaux, Marina Gromova, Harinderbir Kaur, Wai Li Ling, Gabriel Mugny, and Peter Reiss*

The continuous flow synthesis of highly luminescent PbS/CdS core/shell quantum dots emitting at 940 and 1130 nm is achieved using substituted thioureas and metal oleates. Key factors for the successful implementation are the identification of appropriate solvent mixtures and dilution factors enabling the precision synthesis of the quantum dots (QDs) on the gram scale.

Nano Research, 2024, 17(12), 10677–10684

https://doi.org/10.1007/s12274-024-7003-9

Theory

Research Article

Machine learning force field study of carboxylate ligands on the surface of zinc-blende CdSe quantum dots

Haibing Zhang, Bichuan Cao, Lei Huang, Xiaogang Peng, and Linjun Wang*

An effective approach is proposed to construct the machine learning force field based on small quantum dots, which can be used to study large quantum dots with different shapes, sizes and ligand lengths. With the obtained quantum dot force field (QDFF), the complex geometry transformation of carboxylate ligands on different facets of zinc-blende CdSe quantum dots has been successfully revealed.

Nano Research, 2024, 17(12), 10685–10693

https://doi.org/10.1007/s12274-024-6983-9