1
|
Kim S, Lee K, Gwak N, Shin S, Seo J, Noh SH, Kim D, Lee Y, Kong H, Yeo D, Kim TA, Lee SY, Jang J, Oh N. Colloidal Synthesis of P-Type Zn 3As 2 Nanocrystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310671. [PMID: 38279779 DOI: 10.1002/adma.202310671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/11/2024] [Indexed: 01/28/2024]
Abstract
Zinc pnictides, particularly Zn3As2, hold significant promise for optoelectronic applications owing to their intrinsic p-type behavior and appropriate bandgaps. However, despite the outstanding properties of colloidal Zn3As2 nanocrystals, research in this area is lacking because of the absence of suitable precursors, occurrence of surface oxidation, and intricacy of the crystal structures. In this study, a novel and facile solution-based synthetic approach is presented for obtaining highly crystalline p-type Zn3As2 nanocrystals with accurate stoichiometry. By carefully controlling the feed ratio and reaction temperature, colloidal Zn3As2 nanocrystals are successfully obtained. Moreover, the mechanism underlying the conversion of As precursors in the initial phases of Zn3As2 synthesis is elucidated. Furthermore, these nanocrystals are employed as active layers in field-effect transistors that exhibit inherent p-type characteristics with native surface ligands. To enhance the charge transport properties, a dual passivation strategy is introduced via phase-transfer ligand exchange, leading to enhanced hole mobilities as high as 0.089 cm2 V-1 s-1. This study not only contributes to the advancement of nanocrystal synthesis, but also opens up new possibilities for previously underexplored p-type nanocrystal research.
Collapse
Affiliation(s)
- Seongchan Kim
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Kyumin Lee
- Department of Energy 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
| | - Seungki Shin
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Jaeyoung Seo
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Sung Hoon Noh
- Department of Energy Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Doyeon Kim
- Department of Energy Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Yunseo Lee
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Hyein Kong
- 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
| | - Tae Ann Kim
- Convergence Research Center for Solutions to Electromagnetic Interference in Future-Mobility, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Seung-Yong Lee
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Jaeyoung Jang
- Department of Energy 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
| |
Collapse
|
2
|
Sodreau A, Zahedi HG, Dervişoğlu R, Kang L, Menten J, Zenner J, Terefenko N, DeBeer S, Wiegand T, Bordet A, Leitner W. A Simple and Versatile Approach for the Low-Temperature Synthesis of Transition Metal Phosphide Nanoparticles from Metal Chloride Complexes and P(SiMe 3 ) 3. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2306621. [PMID: 37768320 DOI: 10.1002/adma.202306621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/26/2023] [Indexed: 09/29/2023]
Abstract
Metal chloride complexes react with tris(trimethylsilyl)phosphine under mild condition to produce metal phosphide (TMP) nanoparticles (NPs), and chlorotrimethylsilane as a byproduct. The formation of Si-Cl bonds that are stronger than the starting M-Cl bonds acts as a driving force for the reaction. The potential of this strategy is illustrated through the preparation of ruthenium phosphide NPs using [RuCl2 (cymene)] and tris(trimethylsilyl)phosphine at 35 °C. Characterization with a combination of techniques including electron microscopy (EM), X-ray absorption spectroscopy (XAS), and solid-state nuclear magnetic resonance (NMR) spectroscopy, evidences the formation of small (diameter of 1.3 nm) and amorphous NPs with an overall Ru50 P50 composition. Interestingly, these NPs can be easily immobilized on functional support materials, which is of great interest for potential applications in catalysis and electrocatalysis. Mo50 P50 and Co50 P50 NPs can also be synthesized following the same strategy. This approach is simple and versatile and paves the way toward the preparation of a wide range of transition metal phosphide nanoparticles under mild reaction conditions.
Collapse
Affiliation(s)
- Alexandre Sodreau
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
| | - Hooman Ghazi Zahedi
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Rıza Dervişoğlu
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Liqun Kang
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
| | - Julia Menten
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
| | - Johannes Zenner
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Nicole Terefenko
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Serena DeBeer
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
| | - Thomas Wiegand
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Alexis Bordet
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
| | - Walter Leitner
- Department of Molecular Catalysis, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| |
Collapse
|
3
|
Smith L, Harbison KE, Diroll BT, Fedin I. Acceleration of Near-IR Emission through Efficient Surface Passivation in Cd 3P 2 Quantum Dots. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6346. [PMID: 37834483 PMCID: PMC10573561 DOI: 10.3390/ma16196346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 10/15/2023]
Abstract
Fast near-IR (NIR) emitters are highly valuable in telecommunications and biological imaging. The most established NIR emitters are epitaxially grown InxGa1-xAs quantum dots (QDs), but epitaxial growth has several disadvantages. Colloidal synthesis is a viable alternative that produces a few NIR-emitting materials, but they suffer from long photoluminescence (PL) times. These long PL times are intrinsic in some NIR materials (PbS, PbSe) but are attributed to emission from bright trapped carrier states in others. We show that Cd3P2 QDs possess substantial trap emission with radiative times >101 ns. Surface passivation through shell growth or coordination of Lewis acids is shown to accelerate the NIR emission from Cd3P2 QDs by decreasing the amount of trap emission. This finding brings us one step closer to the application of colloidally synthesized QDs as quantum emitters.
Collapse
Affiliation(s)
- Logan Smith
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - K. Elena Harbison
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Benjamin T. Diroll
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 S. Cass Ave, Lemont, IL 60439, USA
| | - Igor Fedin
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA
| |
Collapse
|
4
|
McVey BFP, Swain RA, Lagarde D, Ojo WS, Bakkouche K, Marcelot C, Warot B, Tison Y, Martinez H, Chaudret B, Nayral C, Delpech F. Cd 3P 2/Zn 3P 2 Core-Shell Nanocrystals: Synthesis and Optical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3364. [PMID: 36234492 PMCID: PMC9565233 DOI: 10.3390/nano12193364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/02/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
II-V semiconductor nanocrystals such as Cd3P2 and Zn3P2 have enormous potential as materials in next-generation optoelectronic devices requiring active optical properties across the visible and infrared range. To date, this potential has been unfulfilled due to their inherent instability with respect to air and moisture. Core-shell system Cd3P2/Zn3P2 is synthesized and studied from structural (morphology, crystallinity, shell diameter), chemical (composition of core, shell, and ligand sphere), and optical perspectives (absorbance, emission-steady state and time resolved, quantum yield, and air stability). The improvements achieved by coating with Zn3P2 are likely due to its identical crystal structure to Cd3P2 (tetragonal), highlighting the key role crystallographic concerns play in creating cutting edge core-shell NCs.
Collapse
Affiliation(s)
- Benjamin F. P. McVey
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Robert A. Swain
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Delphine Lagarde
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Wilfried-Solo Ojo
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Kaltoum Bakkouche
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
- Euromed Research Center, Engineering Division, Euro-Med University of Fez (UEMF), Route de Meknes, Rond-Point de Bensouda, Fès 30070, Morocco
| | - Cécile Marcelot
- CEMES CNRS UPR 8011 and Université de Toulouse, 29 rue Jeanne Marvig, BP 94347, CEDEX 4, 31055 Toulouse, France
| | - Bénédicte Warot
- CEMES CNRS UPR 8011 and Université de Toulouse, 29 rue Jeanne Marvig, BP 94347, CEDEX 4, 31055 Toulouse, France
| | - Yann Tison
- Universite de Pau et des Pays de l’Adour, E2S UPPA, CNRS UMR 5254, IPREM, 64053 Pau, France; Electrochemical Energy Storage Network (RS2E), CNRS FR3459, 33 Rue Saint Leu, CEDEX, 80039 Amiens, France
| | - Hervé Martinez
- Universite de Pau et des Pays de l’Adour, E2S UPPA, CNRS UMR 5254, IPREM, 64053 Pau, France; Electrochemical Energy Storage Network (RS2E), CNRS FR3459, 33 Rue Saint Leu, CEDEX, 80039 Amiens, France
- Centrale Casablanca, Centre de Recherche Systèmes Complexes et Interaction, Bouskoura 27182, Morocco
| | - Bruno Chaudret
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Céline Nayral
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Fabien Delpech
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse, France
| |
Collapse
|
5
|
Chen LL, Zhao L, Wang ZG, Liu SL, Pang DW. Near-Infrared-II Quantum Dots for In Vivo Imaging and Cancer Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104567. [PMID: 34837314 DOI: 10.1002/smll.202104567] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/17/2021] [Indexed: 06/13/2023]
Abstract
In vivo fluorescence imaging can perform real-time, noninvasive, and high spatiotemporal resolution imaging to accurately obtain the dynamic biological information in vivo, which plays significant roles in the early diagnosis and treatment of cancer. However, traditional in vivo fluorescence imaging usually operates in the visible and near-infrared (NIR)-I windows, which are severely interfered by the strong tissue absorption, tissue scattering, and autofluorescence. The emergence of NIR-II imaging at 1000-1700 nm significantly breaks through the imaging limitations in deep tissues, due to less tissue scattering and absorption. Benefiting from the outstanding optical properties of NIR-II quantum dots (QDs), such as high brightness and good photostability, in vivo fluorescence imaging exhibits excellent temporal-spatial resolution and large penetration depth, and QDs have become a kind of promising fluorescent biomarkers in the field of in vivo fluorescence imaging. Herein, the authors review NIR-II QDs from preparation to modification, and summarize recent applications of NIR-II QDs, including in vivo imaging and imaging-guided therapies. Finally, they discuss the special concerns when NIR-II QDs are shifted from in vivo imaging applications to further in-depth applications.
Collapse
Affiliation(s)
- Lu-Lu Chen
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, P. R. China
| | - Liang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, P. R. China
| | - Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, P. R. China
| | - Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, P. R. China
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, P. R. China
| |
Collapse
|
6
|
Tzitzios V, Pillai V, Gioti C, Katsiotis M, Karagiannis T, Gournis D, Karakassides MA, Alhassan S. Ultrafine Ni 2P Nanoparticle-Decorated r-GO: A Novel Liquid-Phase Approach and Dibenzothiophene Hydro-desulfurization. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vasileios Tzitzios
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Athens, Greece
- Department of Chemical Engineering, Khalifa University of Science and Technology, Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates
| | - Vishnu Pillai
- Department of Chemical Engineering, Khalifa University of Science and Technology, Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates
| | - Christina Gioti
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | | | - Thomas Karagiannis
- Department of Chemical Engineering, Khalifa University of Science and Technology, Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates
| | - Dimitrios Gournis
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Michael A. Karakassides
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Saeed Alhassan
- Department of Chemical Engineering, Khalifa University of Science and Technology, Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emirates
| |
Collapse
|
7
|
Gavrikov AV, Belova EV, Ilyukhin AB, Koroteev PS, Sadovnikov AA. Preparation and properties of uncommon Cd‐Mn carboxylate complexes—
per se
and as precursors for CdMn
2
O
4
‐based ceramics. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Andrey V. Gavrikov
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Moscow Russia
| | - Ekaterina V. Belova
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Moscow Russia
- Department of Chemistry Lomonosov Moscow State University Moscow Russia
| | - Andrey B. Ilyukhin
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Moscow Russia
| | - Pavel S. Koroteev
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Moscow Russia
| | - Alexey A. Sadovnikov
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Moscow Russia
| |
Collapse
|
8
|
CHOURYAL YOGENDRANATH, SHARMA RAHULKUMAR, ACHARJEE DEBOPAM, GANGULY TRISIT, PANDEY ARCHNA, GHOSH PUSHPAL. Influence of ionic liquids and concentration of red phosphorous on luminescent Cu3P nanocrystals. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1665-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Hanrahan MP, Chen Y, Blome-Fernández R, Stein JL, Pach GF, Adamson MAS, Neale NR, Cossairt BM, Vela J, Rossini AJ. Probing the Surface Structure of Semiconductor Nanoparticles by DNP SENS with Dielectric Support Materials. J Am Chem Soc 2019; 141:15532-15546. [PMID: 31456398 DOI: 10.1021/jacs.9b05509] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Surface characterization is crucial for understanding how the atomic-level structure affects the chemical and photophysical properties of semiconducting nanoparticles (NPs). Solid-state nuclear magnetic resonance spectroscopy (NMR) is potentially a powerful technique for the characterization of the surface of NPs, but it is hindered by poor sensitivity. Dynamic nuclear polarization surface enhanced NMR spectroscopy (DNP SENS) has previously been demonstrated to enhance the sensitivity of surface-selective solid-state NMR experiments by 1-2 orders of magnitude. Established sample preparations for DNP SENS experiments on NPs require the dilution of the NPs on mesoporous silica. Using hexagonal boron nitride (h-BN) to disperse the NPs doubles DNP enhancements and absolute sensitivity in comparison to standard protocols with mesoporous silica. Alternatively, precipitating the NPs as powders, mixing them with h-BN, and then impregnating the powdered mixture with radical solution leads to further 4-fold sensitivity enhancements by increasing the concentration of NPs in the final sample. This modified procedure provides a factor of 9 improvement in NMR sensitivity in comparison to previously established DNP SENS procedures, enabling challenging homonuclear and heteronuclear 2D NMR experiments on CdS, Si, and Cd3P2 NPs. These experiments allow NMR signals from the surface, subsurface, and core sites to be observed and assigned. For example, we demonstrate the acquisition of DNP-enhanced 2D 113Cd-113Cd correlation NMR experiments on CdS NPs and natural isotropic abundance 2D 13C-29Si HETCOR of functionalized Si NPs. These experiments provide a critical understanding of NP surface structures.
Collapse
Affiliation(s)
- Michael P Hanrahan
- Iowa State University , Department of Chemistry , Ames , Iowa 50011 , United States.,US DOE Ames Laboratory , Ames , Iowa 50011 , United States
| | - Yunhua Chen
- Iowa State University , Department of Chemistry , Ames , Iowa 50011 , United States.,US DOE Ames Laboratory , Ames , Iowa 50011 , United States
| | | | - Jennifer L Stein
- University of Washington , Department of Chemistry , Seattle , Washington 98195 , United States
| | - Gregory F Pach
- Chemistry and Nanoscience Center , National Renewable Energy Laboratory , 15013 Denver West Parkway , Golden , Colorado 80401 , United States
| | - Marquix A S Adamson
- Iowa State University , Department of Chemistry , Ames , Iowa 50011 , United States
| | - Nathan R Neale
- Chemistry and Nanoscience Center , National Renewable Energy Laboratory , 15013 Denver West Parkway , Golden , Colorado 80401 , United States
| | - Brandi M Cossairt
- University of Washington , Department of Chemistry , Seattle , Washington 98195 , United States
| | - Javier Vela
- Iowa State University , Department of Chemistry , Ames , Iowa 50011 , United States.,US DOE Ames Laboratory , Ames , Iowa 50011 , United States
| | - Aaron J Rossini
- Iowa State University , Department of Chemistry , Ames , Iowa 50011 , United States.,US DOE Ames Laboratory , Ames , Iowa 50011 , United States
| |
Collapse
|
10
|
Chen YA, Chou KH, Kuo YY, Wu CY, Hsiao PW, Chen PW, Yuan SH, Wuu DS. Formation of ZnO/Zn 0.5Cd 0.5Se Alloy Quantum Dots in the Presence of High Oleylamine Contents. NANOMATERIALS 2019; 9:nano9070999. [PMID: 31373313 PMCID: PMC6669603 DOI: 10.3390/nano9070999] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/27/2019] [Accepted: 07/08/2019] [Indexed: 11/16/2022]
Abstract
To the best of our knowledge, this report presents, for the first time, the schematic of the possible chemical reaction for a one-pot synthesis of Zn0.5Cd0.5Se alloy quantum dots (QDs) in the presence of low/high oleylamine (OLA) contents. For high OLA contents, high-resolution transmission electron microscopy (HRTEM) results showed that the average size of Zn0.5Cd0.5Se increases significantly from 4 to 9 nm with an increasing OLA content from 4 to 10 mL. First, [Zn(OAc)2]–OLA complex can be formed by a reaction between Zn(OAc)2 and OLA. Then, Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) data confirmed that ZnO is formed by thermal decomposition of the [Zn(OAc)2]–OLA complex. The results indicated that ZnO grew on the Zn0.5Cd0.5Se surface, thus increasing the particle size. For low OLA contents, HRTEM images were used to estimate the average sizes of the Zn0.5Cd0.5Se alloy QDs, which were approximately 8, 6, and 4 nm with OLA loadings of 0, 2, and 4 mL, respectively. We found that Zn(OAc)2 and OLA could form a [Zn(OAc)2]–OLA complex, which inhibited the growth of the Zn0.5Cd0.5Se alloy QDs, due to the decreasing reaction between Zn(oleic acid)2 and Se2−, which led to a decrease in particle size.
Collapse
Affiliation(s)
- Yi-An Chen
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan
| | - Kuo-Hsien Chou
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Yi-Yang Kuo
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Cheng-Ye Wu
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Po-Wen Hsiao
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Po-Wei Chen
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Shuo-Huang Yuan
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Dong-Sing Wuu
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan.
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan.
- Research Center for Sustainable Energy and Nanotechnology, National Chung Hsing University, Taichung 40227, Taiwan.
| |
Collapse
|
11
|
Wang C, Peng L, Yang X, Xie R, Feng S. Cd-Cu-Fe-S quaternary nanocrystals exhibiting excellent optical/optoelectronic properties. NANOSCALE 2019; 11:6533-6537. [PMID: 30906939 DOI: 10.1039/c8nr10507c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Quaternary Cd-Cu-Fe-S nanocrystals (NCs) exhibiting a strong size tunable photoluminescence were synthesized for the first time by tuning the reaction temperature from 120 °C to 210 °C. The preparation procedure involved cadmium acetate, copper acetate, iron chloride, and sulfur powder dissolved in oleylamine as precursors. The wavelength of the emission can be tuned from 640 nm to nearly 1000 nm by only changing the size of the as-prepared NCs from 3.0 nm to 15 nm. Interestingly, these NCs possess a relatively high quantum yield of over 57% without coating any wide band-gap shell materials. The study on the optoelectronic properties of Cd-Cu-Fe-S NCs, where an order of photocurrent was enhanced under AM1.5 illumination, demonstrated their suitability as optically active components to fabricate optoelectronic devices.
Collapse
Affiliation(s)
- Chao Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry Jilin University, Changchun 130012, China.
| | | | | | | | | |
Collapse
|
12
|
Patwari J, Chatterjee A, Ghadi H, Sharma H, Chakrabarti S, Pal SK. In situ measurement of temperature dependent picosecond resolved carrier dynamics in near infrared (NIR) sensitive device on action. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:043909. [PMID: 31042972 DOI: 10.1063/1.5050951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
The carrier dynamics study of emerging near infrared (NIR) absorbing materials is an essential need to develop device technology toward enhanced NIR light harvesting. In this study, we have documented the design of an indigenously developed time correlated single photoncounting (TCSPC) system working in the NIR (900 nm-1700 nm) spectral region. The system is compatible to study transient photoluminescence of device samples under tunable bias voltages. The liquid nitrogen cooling and electrical heating of the sample chamber provides additional flexibility of temperature dependent study starting from -196 °C to 400 °C. As a model system to study, we have chosen a multilayer InAs/InGaAs/GaAs/AlGaAs dot in the dual well device sample as the thin film quantum dot heterostructures are of huge relevance in various NIR harvesting devices. We have investigated the detail carrier dynamics of the device sample using the transient photoluminescence upon varying temperature (80 K-300 K), varying emission energy and different bias voltages (0 V-15 V). The critical temperature (160 K) and critical bias (12 V) of achieving longest excited state lifetime has been mechanistically explained using various competing photophysical phenomena such as hole diffusion, energy relaxation, etc. The emission wavelength dependent study at below and above critical temperature further provides an insight into the dominance of carrier capture and thermal escape at the two different temperature zones. Along with the detail understanding of the carrier dynamics, the results can be helpful to get an idea of the electrical stability of the device and the operability temperature as well. The reasonable good resolution of the NIR TCSPC system and considerable good results ensure the future application of the same for other devices also.
Collapse
Affiliation(s)
- Jayita Patwari
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Arka Chatterjee
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Hemant Ghadi
- Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Hemant Sharma
- Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Subhananda Chakrabarti
- Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Samir Kumar Pal
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| |
Collapse
|
13
|
Lu H, Carroll GM, Neale NR, Beard MC. Infrared Quantum Dots: Progress, Challenges, and Opportunities. ACS NANO 2019; 13:939-953. [PMID: 30648854 DOI: 10.1021/acsnano.8b09815] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Infrared technologies provide tremendous value to our modern-day society. The need for easy-to-fabricate, solution-processable, tunable infrared active optoelectronic materials has driven the development of infrared colloidal quantum dots, whose band gaps can readily be tuned by dimensional constraints due to the quantum confinement effect. In this Perspective, we summarize recent progress in the development of infrared quantum dots both as infrared light emitters ( e.g., in light-emitting diodes, biological imaging, etc.) as well as infrared absorbers ( e.g., in photovoltaics, solar fuels, photon up-conversion, etc.), focusing on how fundamental breakthroughs in synthesis, surface chemistry, and characterization techniques are facilitating the implementation of these nanostructures into exploratory device architectures as well as in emerging applications. We discuss the ongoing challenges and opportunities associated with infrared colloidal quantum dots.
Collapse
Affiliation(s)
- Haipeng Lu
- Chemistry & Nanoscience Center , National Renewable Energy Laboratory , Golden , Colorado 80401 , United States
| | - Gerard M Carroll
- Chemistry & Nanoscience Center , National Renewable Energy Laboratory , Golden , Colorado 80401 , United States
| | - Nathan R Neale
- Chemistry & Nanoscience Center , National Renewable Energy Laboratory , Golden , Colorado 80401 , United States
| | - Matthew C Beard
- Chemistry & Nanoscience Center , National Renewable Energy Laboratory , Golden , Colorado 80401 , United States
| |
Collapse
|
14
|
Li H, Jia C, Meng X, Li H. Chemical Synthesis and Applications of Colloidal Metal Phosphide Nanocrystals. Front Chem 2019; 6:652. [PMID: 30671431 PMCID: PMC6331784 DOI: 10.3389/fchem.2018.00652] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/13/2018] [Indexed: 11/13/2022] Open
Abstract
Colloidal nanocrystals (NCs) have emerged as promising materials in optoelectronic devices and biological imaging application due to their tailorable properties through size, shape, and composition. Among these NCs, metal phosphide is an important class, in parallel with metal chalcogenide. In this review, we summarize the recent progress regarding the chemical synthesis and applications of colloidal metal phosphide NCs. As the most important metal phosphide NCs, indium phosphide (InP) NCs have been intensively investigated because of their low toxicity, wide and tunable emission range from visible to the near-infrared region. Firstly, we give a brief overview of synthetic strategies to InP NCs, highlighting the benefit of employing zinc precursors as reaction additive and the importance of different phosphorus precursors to improve the quality of the InP NCs, in terms of size distribution, quantum yield, colloidal stability, and non-blinking behavior. Next, we discuss additional synthetic techniques to overcome the issues of lattice mismatch in the synthesis of core/shell metal phosphide NCs, by constructing an intermediate layer between core/shell or designing a shell with gradient composition in a radial direction. We also envision future research directions of InP NCs. The chemical synthesis of other metal phosphide NCs, such as II-V metal phosphide NCs (Cd3P2, Zn3P2) and transition metal phosphides NCs (Cu3P, FeP) is subsequently introduced. We finally discuss the potential applications of colloidal metal phosphide NCs in photovoltaics, light-emitting diodes, and lithium ion battery. An overview of several key applications based on colloidal metal phosphide NCs is provided at the end.
Collapse
Affiliation(s)
- Hui Li
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China
| | - Chao Jia
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China
| | - Xianwei Meng
- Laboratory of Controllable Preparation and Application of Nanomaterials, CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Hongbo Li
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China
| |
Collapse
|
15
|
Glassy BA, Cossairt BM. II 3 V 2 (II: Zn, Cd; V: P, As) Semiconductors: From Bulk Solids to Colloidal Nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1702038. [PMID: 28857437 DOI: 10.1002/smll.201702038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/14/2017] [Indexed: 05/21/2023]
Abstract
II3 V2 semiconductors have become increasingly popular for a variety of applications including solar light harvesting, near-IR imaging, and low energy light detection. The bulk physical and electronic structure of these materials is highlighted, followed by an in-depth survey on progress in synthesizing these semiconductors as colloidal nanocrystals. Interestingly, no universal synthetic approach has yet been developed to access all compounds within this family. A discussion on how the complex crystal structure of these materials translates to small domain sizes will highlight current challenges in the characterization of II3 V2 nanocrystals. Finally, potential avenues for further research will be proposed as a way to advance this field towards greater utilization in light harvesting applications.
Collapse
Affiliation(s)
- Benjamin A Glassy
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington, 98195-1700, USA
| | - Brandi M Cossairt
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington, 98195-1700, USA
| |
Collapse
|
16
|
Xia C, Meeldijk JD, Gerritsen HC, de Mello Donega C. Highly Luminescent Water-Dispersible NIR-Emitting Wurtzite CuInS 2/ZnS Core/Shell Colloidal Quantum Dots. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2017; 29:4940-4951. [PMID: 28638177 PMCID: PMC5473174 DOI: 10.1021/acs.chemmater.7b01258] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/16/2017] [Indexed: 05/19/2023]
Abstract
Copper indium sulfide (CIS) quantum dots (QDs) are attractive as labels for biomedical imaging, since they have large absorption coefficients across a broad spectral range, size- and composition-tunable photoluminescence from the visible to the near-infrared, and low toxicity. However, the application of NIR-emitting CIS QDs is still hindered by large size and shape dispersions and low photoluminescence quantum yields (PLQYs). In this work, we develop an efficient pathway to synthesize highly luminescent NIR-emitting wurtzite CIS/ZnS QDs, starting from template Cu2-x S nanocrystals (NCs), which are converted by topotactic partial Cu+ for In3+ exchange into CIS NCs. These NCs are subsequently used as cores for the overgrowth of ZnS shells (≤1 nm thick). The CIS/ZnS core/shell QDs exhibit PL tunability from the first to the second NIR window (750-1100 nm), with PLQYs ranging from 75% (at 820 nm) to 25% (at 1050 nm), and can be readily transferred to water upon exchange of the native ligands for mercaptoundecanoic acid. The resulting water-dispersible CIS/ZnS QDs possess good colloidal stability over at least 6 months and PLQYs ranging from 39% (at 820 nm) to 6% (at 1050 nm). These PLQYs are superior to those of commonly available water-soluble NIR-fluorophores (dyes and QDs), making the hydrophilic CIS/ZnS QDs developed in this work promising candidates for further application as NIR emitters in bioimaging. The hydrophobic CIS/ZnS QDs obtained immediately after the ZnS shelling are also attractive as fluorophores in luminescent solar concentrators.
Collapse
Affiliation(s)
- Chenghui Xia
- Condensed
Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, P.O.
Box 80000, 3508 TA Utrecht, The Netherlands
- Molecular
Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, 3508 TA Utrecht, Netherlands
| | - Johannes D. Meeldijk
- Electron
Microscopy Utrecht, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, Netherlands
| | - Hans C. Gerritsen
- Molecular
Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, 3508 TA Utrecht, Netherlands
| | - Celso de Mello Donega
- Condensed
Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, P.O.
Box 80000, 3508 TA Utrecht, The Netherlands
- E-mail:
| |
Collapse
|
17
|
Medically translatable quantum dots for biosensing and imaging. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.01.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
18
|
Yan D, He Y, Ge Y, Song G. Fluorescent Detection of Phosphate in Aqueous Solution Based on Near Infrared Emission Ag2S QDs/Metal − Organic Shell Composite. J Fluoresc 2016; 27:227-233. [DOI: 10.1007/s10895-016-1949-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 10/03/2016] [Indexed: 11/30/2022]
|
19
|
Shi Y, Xu Y, Zhuo S, Zhang J, Zhang B. Ni2P nanosheets/Ni foam composite electrode for long-lived and pH-tolerable electrochemical hydrogen generation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2376-2384. [PMID: 25564726 DOI: 10.1021/am5069547] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The continuous consumption of fossil fuels and accompanying environmental problems are driving the exploration of low-cost and effective electrocatalysts to produce clean hydrogen. A Ni2P nanosheets/Ni foam composite, as a non-noble metal electrocatalyst, has been prepared through a facile chemical conversion pathway using surface oxidized Ni foam as precursor and low concentration of trioctylphosphine (TOP) as a phosphorus source. Further investigation shows the oxidized layer of Ni foam can orient the formation of Ni2P nanosheets and facilitate the reaction with TOP. The Ni2P/Ni, acting as a robust 3D self-supported superaerophobic hydrogen-evolving cathode, shows superior catalytic performance, stability, and durability in aqueous media over a wide pH value of 0-14, making it a versatile catalyst system for hydrogen generation. Such highly active, stable, abundant, and low-cost materials hold enormously promising potential applications in the fields of catalysis, energy conversion, and storage.
Collapse
Affiliation(s)
- Yanmei Shi
- Department of Chemistry, School of Science, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , 92th Weijin Road, Tianjin 300072, China
| | | | | | | | | |
Collapse
|
20
|
Cao H, Liu Z, Zhu X, Peng J, Hu L, Xu S, Luo M, Ma W, Tang J, Liu H. PbS/Cd₃P₂ quantum heterojunction colloidal quantum dot solar cells. NANOTECHNOLOGY 2015; 26:035401. [PMID: 25548866 DOI: 10.1088/0957-4484/26/3/035401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Here, we demonstrated the quantum heterojunction colloidal quantum dot (CQD) solar cells employing the PbS CQDs/Cd3P2 CQDs architecture in which both the p-type PbS and n-type Cd3P2 CQD layers are quantum-tunable and solution-processed light absorbers. We synthesized well-crystallized and nearly monodispersed tetragonal Cd3P2 CQDs and then engineered their energy band alignment with the p-type PbS by tuning the dot size and hence the bandgap to achieve efficient light absorbing and charge separation. We further optimized the device through the Ag-doping strategy of PbS CQDs that may leverage an expanded depletion region in the n-layer, which greatly enhances the photocurrent. The resulting devices showed an efficiency of 1.5%.
Collapse
Affiliation(s)
- Hefeng Cao
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Rd., Wuhan, Hubei 430074, People's Republic of China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Cheng H, Wang C, Xu Z, Lin H, Zhang C. Gold nanoparticle-enhanced near infrared fluorescent nanocomposites for targeted bio-imaging. RSC Adv 2015. [DOI: 10.1039/c4ra12066c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Folic acid-conjugated nanocomposites with NIR fluorescence, water-solubility, and low toxicity are prepared and used as target-imaging agents for cancer cells.
Collapse
Affiliation(s)
- Hao Cheng
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical & Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chuanxi Wang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical & Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Zhenzhu Xu
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical & Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Huihui Lin
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical & Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chi Zhang
- China-Australia Joint Research Centre for Functional Molecular Materials
- School of Chemical & Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| |
Collapse
|
22
|
Yang C, Pan H, Liu S, Miao S, Zhang WH, Jie J, Xu X. A solution-phase approach to Cd3P2nanowires: synthesis and characterization. Chem Commun (Camb) 2015; 51:2593-6. [DOI: 10.1039/c4cc09002k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Single-crystalline Cd3P2nanowires (NWs) have been synthesizedviaa solution–liquid–solid (SLS) mechanism.
Collapse
Affiliation(s)
- Chi Yang
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- China
| | - Huanhuan Pan
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Sheng Liu
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Shu Miao
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Wen-Hua Zhang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Jiansheng Jie
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- China
| | - Xin Xu
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- China
| |
Collapse
|
23
|
He X, Ma N. An overview of recent advances in quantum dots for biomedical applications. Colloids Surf B Biointerfaces 2014; 124:118-31. [DOI: 10.1016/j.colsurfb.2014.06.002] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/23/2014] [Accepted: 06/01/2014] [Indexed: 12/23/2022]
|
24
|
Jing L, Ding K, Kershaw SV, Kempson IM, Rogach AL, Gao M. Magnetically engineered semiconductor quantum dots as multimodal imaging probes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:6367-86. [PMID: 25178258 DOI: 10.1002/adma.201402296] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 06/25/2014] [Indexed: 05/27/2023]
Abstract
Light-emitting semiconductor quantum dots (QDs) combined with magnetic resonance imaging contrast agents within a single nanoparticle platform are considered to perform as multimodal imaging probes in biomedical research and related clinical applications. The principles of their rational design are outlined and contemporary synthetic strategies are reviewed (heterocrystalline growth; co-encapsulation or assembly of preformed QDs and magnetic nanoparticles; conjugation of magnetic chelates onto QDs; and doping of QDs with transition metal ions), identifying the strengths and weaknesses of different approaches. Some of the opportunities and benefits that arise through in vivo imaging using these dual-mode probes are highlighted where tumor location and delineation is demonstrated in both MRI and fluorescence modality. Work on the toxicological assessments of QD/magnetic nanoparticles is also reviewed, along with progress in reducing their toxicological side effects for eventual clinical use. The review concludes with an outlook for future biomedical imaging and the identification of key challenges in reaching clinical applications.
Collapse
Affiliation(s)
- Lihong Jing
- Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China
| | | | | | | | | | | |
Collapse
|
25
|
Near infrared Ag/Au alloy nanoclusters: Tunable photoluminescence and cellular imaging. J Colloid Interface Sci 2014; 416:274-9. [DOI: 10.1016/j.jcis.2013.11.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 11/01/2013] [Accepted: 11/05/2013] [Indexed: 01/10/2023]
|
26
|
Chen G, Liang B, Liu X, Liu Z, Yu G, Xie X, Luo T, Chen D, Zhu M, Shen G, Fan Z. High-performance hybrid phenyl-C61-butyric acid methyl ester/Cd(3)P(2) nanowire ultraviolet-visible-near infrared photodetectors. ACS NANO 2014; 8:787-796. [PMID: 24364536 DOI: 10.1021/nn405442z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, single-crystalline p-type Cd3P2 nanowires (NWs) were synthesized on a Cd sheet via a facile chemical vapor deposition method. Then field-effect transistors and high-performance photodetectors were fabricated based on these NWs. It was found that hole mobility of a pristine Cd3P2 NW is around 2.94 cm(2) V(-1) s(-1). Meanwhile, high responsivity and photoconductive gain were observed on these devices across a broad spectral range covering UV-visible to NIR with high stability and reproducibility. Furthermore, hybrid organic-inorganic n-type phenyl-C61-butyric acid methyl ester (PCBM) and p-type Cd3P2 NW heterojunction photodetectors were also fabricated, exhibiting much improved photocurrent and photoconductive gain, as compared to the device made of pristine Cd3P2 NWs. Intriguingly, the flexible hybrid photodetectors have been fabricated on plastic substrates and characterized under various bending conditions, demonstrating their excellent flexibility and robustness. The high performance and flexibility of the hybrid photodetectors are promising for further applications requiring large-area, high-sensitivity, and high-speed photodetectors with broad-spectrum photoresponse.
Collapse
Affiliation(s)
- Gui Chen
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Ding L, He S, Chen D, Huang M, Xu J, Hickey SG, Eychmüller A, Yu SH, Miao S. Encapsulated Cd3P2 quantum dots emitting from the visible to the near infrared for bio-labelling applications. CrystEngComm 2014. [DOI: 10.1039/c4ce01041h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Quantum dot composites (PS@Cd3P2, SiO2@Cd3P2) were prepared and employed for the first time as fluorescent probes for biological imaging.
Collapse
Affiliation(s)
- Liping Ding
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering
- School of Chemical Engineering
- Hefei University of Technology
- Hefei, 230009 China
| | - Shulian He
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering
- School of Chemical Engineering
- Hefei University of Technology
- Hefei, 230009 China
| | - Dechao Chen
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering
- School of Chemical Engineering
- Hefei University of Technology
- Hefei, 230009 China
| | - Mei Huang
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering
- School of Chemical Engineering
- Hefei University of Technology
- Hefei, 230009 China
| | - Jinzhang Xu
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering
- School of Chemical Engineering
- Hefei University of Technology
- Hefei, 230009 China
| | | | | | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Chemistry
- University of Science and Technology of China
- Hefei 230026, China
| | - Shiding Miao
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering
- School of Chemical Engineering
- Hefei University of Technology
- Hefei, 230009 China
| |
Collapse
|
28
|
Miao S, Yang T, Hickey SG, Lesnyak V, Rellinghaus B, Xu J, Eychmüller A. Emissive ZnO@Zn3 P2 nanocrystals: synthesis, optical, and optoelectrochemical properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:3415-3422. [PMID: 23606656 DOI: 10.1002/smll.201203023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Indexed: 06/02/2023]
Abstract
ZnO@Zn3 P2 quantum dots (QDs) are synthesized, with emission from yellow to red. Photoelectrochemical investigations reveal that the current and voltage of the QD-derivatized electrodes show a response upon illumination. A photocurrent of ca. 8 nA cm(-2) for a monolayer of ZnO@Zn3 P2 QDs deposited on indium tin oxide (ITO) electrode is recorded.
Collapse
Affiliation(s)
- Shiding Miao
- Hefei University of Technology, Tunxi Road. 193, Hefei, 230009, Anhui Prov., China.
| | | | | | | | | | | | | |
Collapse
|
29
|
Electrochemiluminescence energy transfer-promoted ultrasensitive immunoassay using near-infrared-emitting CdSeTe/CdS/ZnS quantum dots and gold nanorods. Sci Rep 2013; 3:1529. [PMID: 23524874 PMCID: PMC3607123 DOI: 10.1038/srep01529] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 03/07/2013] [Indexed: 12/21/2022] Open
Abstract
The marriage of energy transfer with electrochemiluminescence has produced a new technology named electrochemiluminescence energy transfer (ECL-ET), which can realize effective and sensitive detection of biomolecules. To obtain optimal ECL-ET efficiency, perfect energy overlapped donor/acceptor pair is of great importance. Herein, we present a sensitive ECL-ET based immunosensor for the detection of tumor markers, using energy tunable CdSeTe/CdS/ZnS double shell quantum dots (QDs) and gold nanorods (GNRs) as the donor and acceptor, respectively. Firstly a facile microwave-assisted strategy for the synthesis of green- to near-infrared-emitting CdSeTe/CdS/ZnS QDs with time- and component-tunable photoluminescence was proposed. And, on the basis of the adjustable optical properties of both CdSeTe/CdS/ZnS QDs and GNRs, excellent overlap between donor emission and acceptor absorption can be obtained to ensure effective ECL-ET quenching, thus improving the sensing sensitivity. This method represents a novel approach for versatile detection of biomolecules at low concentrations.
Collapse
|
30
|
Carenco S, Portehault D, Boissière C, Mézailles N, Sanchez C. Nanoscaled Metal Borides and Phosphides: Recent Developments and Perspectives. Chem Rev 2013; 113:7981-8065. [DOI: 10.1021/cr400020d] [Citation(s) in RCA: 756] [Impact Index Per Article: 68.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sophie Carenco
- Chimie de la Matière Condensée de Paris, UPMC Univ Paris 06, UMR 7574, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, CNRS, UMR 77574, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
- Laboratory Heteroelements and Coordination, Chemistry Department, Ecole Polytechnique, CNRS-UMR 7653, Palaiseau, France
| | - David Portehault
- Chimie de la Matière Condensée de Paris, UPMC Univ Paris 06, UMR 7574, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, CNRS, UMR 77574, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
| | - Cédric Boissière
- Chimie de la Matière Condensée de Paris, UPMC Univ Paris 06, UMR 7574, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, CNRS, UMR 77574, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
| | - Nicolas Mézailles
- Laboratory Heteroelements and Coordination, Chemistry Department, Ecole Polytechnique, CNRS-UMR 7653, Palaiseau, France
| | - Clément Sanchez
- Chimie de la Matière Condensée de Paris, UPMC Univ Paris 06, UMR 7574, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, CNRS, UMR 77574, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
- Chimie de la Matière Condensée de Paris, Collège de France, 11 Place Marcellin Berthelot, 75231 Paris Cedex 05, France
| |
Collapse
|
31
|
Wu K, Liu Z, Zhu H, Lian T. Exciton annihilation and dissociation dynamics in group II-V Cd3P2 quantum dots. J Phys Chem A 2013; 117:6362-72. [PMID: 23611312 DOI: 10.1021/jp402511m] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Semiconductor quantum dots (QDs) have emerged as a new class of light harvesting materials for solar energy conversion due to their unique size-dependent properties. Most recent studies have focused on II-VI group (such as CdX, X = S, Se, and Te) QDs and lead salt (such as PbS, PbSe, and PbTe) QDs. In this paper, we investigate exciton dissociation and annihilation dynamics of Cd3P2 QDs, a low bulk band gap (0.55 eV) II-V group material, to explore their potential application as a light harvesting component for photoreduction systems. For Cd3P2 QDs with 1S exciton band at 650 nm, a long-lived single exciton state with lifetime of 259 ns and a high emission quantum yield of 65% were observed. In Cd3P2 QD-rhodamine B (RhB, an electron acceptor) complexes, excitons in QDs could be dissociated by ultrafast electron transfer to RhB (6.2 ps), and the charge separated state had a long lifetime (31 ns). Although the photoinduced electron transfer rate in QD-RhB complexes decreased with increasing QD size, electron transfer was observed in QDs with 1S exciton bands at wavelength as long as 1050 nm. Compared with CdSe and PbS, Cd3P2 QDs with both more strongly reducing excited states and broader absorption in the visible and near IR region can be readily achieved, making them potential photosensitizers for photodriven water or CO2 reduction reactions.
Collapse
Affiliation(s)
- Kaifeng Wu
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | | | | | | |
Collapse
|
32
|
Cassette E, Helle M, Bezdetnaya L, Marchal F, Dubertret B, Pons T. Design of new quantum dot materials for deep tissue infrared imaging. Adv Drug Deliv Rev 2013; 65:719-31. [PMID: 22981756 DOI: 10.1016/j.addr.2012.08.016] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 07/11/2012] [Accepted: 08/24/2012] [Indexed: 10/27/2022]
Abstract
Near infrared fluorescence offers several advantages for tissue and in vivo imaging thanks to deeper photon penetration. In this article, we review a promising class of near infrared emitting probes based on semiconductor quantum dots (QDs), which have the potential to considerably improve in vivo fluorescence imaging thanks to their high brightness and stability. We discuss in particular the different criteria to optimize the design of near infrared QDs. We present the recent developments in the synthesis of novel QD materials and their different in vivo imaging applications, including lymph node localization, vasculature imaging, tumor localization, as well as cell tracking and QD-based multimodal probes.
Collapse
|
33
|
Wang H, Lou S, Tang Z, Xu W, Shang H, Shen H, Li LS. Thiolate-assisted cation exchange reaction for the synthesis of near-infrared photoluminescent Hg(x)Cd(1-x)Te nanocrystals. Dalton Trans 2013; 41:12726-32. [PMID: 22968476 DOI: 10.1039/c2dt31602a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we report the synthesis of dot- and branch-shaped Hg(x)Cd(1-x)Te nanocrystals (NCs) with good stability and a high quantum yield of about 30% through an elaborate cation exchange reaction at room temperature. The large red-shifts in both absorption spectra and photoluminescence (PL) spectra confirmed the substitution of mercury ions for cadmium ions and the formation of Hg(x)Cd(1-x)Te NCs. Interesting periodical XRD peaks observed in as-obtained Hg(x)Cd(1-x)Te NCs indicated the formation of layered metal thiolates, which not only played a key role in introducing mercury ions during the cation exchange process, but also acted as ligands to maintain the emission stability of newly formed Hg(x)Cd(1-x)Te NCs. The results indicate that the red-shift in PL emission has close-correlation with several parameters (such as the amounts of thiols and mercury ions, the sample store time, etc.).
Collapse
Affiliation(s)
- Hongzhe Wang
- Key Laboratory for Special Functional Materials, Henan University, Kaifeng 475004, P. R. China
| | | | | | | | | | | | | |
Collapse
|
34
|
Wang C, Wang Y, Xu L, Zhang D, Liu M, Li X, Sun H, Lin Q, Yang B. Facile aqueous-phase synthesis of biocompatible and fluorescent Ag2S nanoclusters for bioimaging: tunable photoluminescence from red to near infrared. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:3137-3142. [PMID: 22777739 DOI: 10.1002/smll.201200376] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 06/04/2012] [Indexed: 05/27/2023]
Abstract
Low toxicity and fluorescent nanomaterials have many advantages in biological imaging. Herein, a novel and facile aqueous-phase approach to prepare biocompatible and fluorescent Ag(2)S nanoclusters (NCs) is designed and investigated. The resultant Ag(2)S NCs show tunable luminescence from the visible red (624 nm) to the near infrared (NIR; 724 nm) corresponding to the increasing size of the NCs. The key for preparing tunable fluorescent Ag(2)S NCs is the proper choice of capping reagent, glutathione (GSH), and the novel sulfur-hydrazine hydrate complex as the S(2-) source. As a naturally occurring and readily available tripeptide, GSH functions as an important scaffold to prevent NCs from growing large nanoparticles. Additionally, GSH is a small biomolecule with several functional groups, including carboxyl and amino groups, which suggests the resultant Ag(2)S NCs are well-dispersed in aqueous solution. These advantages make the as-prepared Ag(2)S NCs potentially applicable to biological labeling as well. For example, the resultant Ag(2)S NCs are used as a probe for MC3T3-EI cellular imaging.
Collapse
Affiliation(s)
- Chuanxi Wang
- State Key Laboratory of Supramolecular, Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Miao S, Hickey SG, Waurisch C, Lesnyak V, Otto T, Rellinghaus B, Eychmüller A. Synthesis of monodisperse cadmium phosphide nanoparticles using ex-situ produced phosphine. ACS NANO 2012; 6:7059-7065. [PMID: 22731853 DOI: 10.1021/nn3021037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The synthesis of nanoparticles using a gas-liquid interfacial reaction, which for the first time is shown to result in highly monodisperse materials across a range of sizes, is presented. We demonstrate, using cadmium phosphide as the paradigm that this synthesis method can provide colloidal nanocrystals or quantum dots monodisperse enough so that for the first time multiple transitions in their absorbance spectra can be observed. Clear evidence is given that the resulting cadmium material is Cd(6)P(7) and not Cd(3)P(2), and a thorough investigation into the role of temperature and growth time and their effects on the optical properties has been conducted. This strategy can be extended to synthesize other relevant members of the binary component pnictide semiconducting family, and the chemistry of the pnictide compound formation using this synthetic methodology has been explained using the redox potential of the metals. The suitability of the resulting cadmium phosphide quantum dots for applications in light-emitting diodes (LEDs) has further been demonstrated.
Collapse
Affiliation(s)
- Shiding Miao
- School of Chemical Engineering, Hefei University of Technology, Tunxi Road, 193, 230009, Hefei, Anhui Province, China.
| | | | | | | | | | | | | |
Collapse
|
36
|
Yang X, Zhao D, Leck KS, Tan ST, Tang YX, Zhao J, Demir HV, Sun XW. Full visible range covering InP/ZnS nanocrystals with high photometric performance and their application to white quantum dot light-emitting diodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:4180-5. [PMID: 22544765 DOI: 10.1002/adma.201104990] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Indexed: 05/17/2023]
Affiliation(s)
- Xuyong Yang
- Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Rahman M, Ahmad MZ, Kazmi I, Akhter S, Afzal M, Gupta G, Jalees Ahmed F, Anwar F. Advancement in multifunctional nanoparticles for the effective treatment of cancer. Expert Opin Drug Deliv 2012; 9:367-81. [PMID: 22400808 DOI: 10.1517/17425247.2012.668522] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Nanotechnology has gained wider importance for the treatment of various diseases, including cancer. Multifunctional or theranostic agents are emerging as promising therapeutic paradigms, which provide attractive vehicles for both image and therapeutic agents. Nanosystems are capable of diagnosis, specific targeted drug therapy and monitoring therapeutic response. Due to their well-developed surface nature, nanomolecules are easy to anchor with multifunctional groups. AREAS COVERED The present review aims to give an extensive account on the progress of multifunctional nanoparticles throughout the blooming research with regards to their clinical application in cancer. This paper discusses graphene, a newly developed multifunctional vehicle in nanotechnology. Furthermore, it focuses on the development of tumor cells, the advantages of novel multifunctional nanoparticles over traditional methods and the use of nanoparticles in cancer therapy. In addition, patents issued by the US office are also included. EXPERT OPINION Despite numerous advantages, multifunctional nanoparticles are still at an infancy stage. Many great achievements have been attained in this field to date, but many challenges still remain. A problem that limits the use of multifunctional nanoparticles is toxicity. If this toxicity can be overcome then the advancement in nanocomposite material science will be well on the way to a prospective treatment of cancer.
Collapse
|
38
|
Synthesis of Inorganic Nanocrystals for Biological Fluorescence Imaging. NANOBIOTECHNOLOGY - INORGANIC NANOPARTICLES VS ORGANIC NANOPARTICLES 2012. [DOI: 10.1016/b978-0-12-415769-9.00003-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
39
|
Ojo WS, Xu S, Delpech F, Nayral C, Chaudret B. Room-Temperature Synthesis of Air-Stable and Size-Tunable Luminescent ZnS-Coated Cd3P2 Nanocrystals with High Quantum Yields. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104864] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
40
|
Ojo WS, Xu S, Delpech F, Nayral C, Chaudret B. Room-temperature synthesis of air-stable and size-tunable luminescent ZnS-coated Cd3P2 nanocrystals with high quantum yields. Angew Chem Int Ed Engl 2011; 51:738-41. [PMID: 22162334 DOI: 10.1002/anie.201104864] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 09/22/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Wilfried-Solo Ojo
- Université de Toulouse, INSA, UPS, CNRS, LPCNO (Laboratoire de Physique et Chimie des Nano-Objets), 135 avenue de Rangueil, 31077 Toulouse, France
| | | | | | | | | |
Collapse
|
41
|
Chen Q, Meng L, Li Q, Wang D, Guo W, Shuai Z, Jiang L. Water transport and purification in nanochannels controlled by asymmetric wettability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:2225-2231. [PMID: 21608126 DOI: 10.1002/smll.201100287] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Indexed: 05/30/2023]
Abstract
Biomimetic asymmetric nanochannels have recently attracted increasing attention from researchers, especially in the aspect of the asymmetric wettability (a hydrophilic-hydrophobic system), which can be utilized to control the wetting behavior of aqueous media and to offer a means for guiding water motion. By using molecular dynamics simulations, a design for a potentially efficient water filter is presented based on (n, n) single-walled carbon nanotubes, where n = 6, 8, 10 and 12, asymmetrically modified with hydrophilic groups (carboxyl, -COOH) at one tip and hydrophobic groups (trifluoromethyl, -CF(3) ) at the other. The reduced water density on the hydrophobic sides of the functionalized nanotubes are observed in both pure water and aqueous electrolyte solution, except for the functionalized (6, 6) tube, due to the change of dipole orientation of the single-file water wire within it. The functionalized (8, 8) tube can significantly maintain the low water density on the hydrophobic side. Both (6, 6) and (8, 8) tubes have relatively high energy barriers at their tips for ion permeation, which can be obtained by calculating the potential of mean force. Such tip functionalization of a nanotube therefore suggests the great possibilities of water transport and filtration, dominated by asymmetric wettability. The functionalized (8, 8) tube could act as a nanofluidic channel for water purification, not only for ion exclusion but also as a stable water column structure.
Collapse
Affiliation(s)
- Qinwen Chen
- Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, P.R. China
| | | | | | | | | | | | | |
Collapse
|
42
|
Harris DK, Allen PM, Han HS, Walker BJ, Lee J, Bawendi MG. Synthesis of Cadmium Arsenide Quantum Dots Luminescent in the Infrared. J Am Chem Soc 2011; 133:4676-9. [DOI: 10.1021/ja1101932] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel K. Harris
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Peter M. Allen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Hee-Sun Han
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Brian J. Walker
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Jungmin Lee
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Moungi G. Bawendi
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
43
|
Smith AM, Nie S. Bright and compact alloyed quantum dots with broadly tunable near-infrared absorption and fluorescence spectra through mercury cation exchange. J Am Chem Soc 2010; 133:24-6. [PMID: 21142154 DOI: 10.1021/ja108482a] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report a new strategy based on mercury cation exchange in nonpolar solvents to prepare bright and compact alloyed quantum dots (QDs) (Hg(x)Cd(1-x)E, where E = Te, Se, or S) with equalized particle size and broadly tunable absorption and fluorescence emission in the near-infrared. The main rationale is that cubic CdE and HgE have nearly identical lattice constants but very different band gap energies and electron/hole masses. Thus, replacement of Cd(2+) by Hg(2+) in CdTe nanocrystals does not change the particle size, but it greatly alters the band gap energy. After capping with a multilayer shell and solubilization with a multidentate ligand, this class of cation-exchanged QDs are compact (6.5 nm nanocrystal size and 10 nm hydrodynamic diameter) and very bright (60-80% quantum yield), with narrow and symmetric fluorescence spectra tunable across the wavelength range from 700 to 1150 nm.
Collapse
Affiliation(s)
- Andrew M Smith
- Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, 101 Woodruff Circle, Suite 2001, Atlanta, Georgia 30322, USA
| | | |
Collapse
|
44
|
Xie J, Lee S, Chen X. Nanoparticle-based theranostic agents. Adv Drug Deliv Rev 2010; 62:1064-79. [PMID: 20691229 DOI: 10.1016/j.addr.2010.07.009] [Citation(s) in RCA: 894] [Impact Index Per Article: 63.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 07/21/2010] [Accepted: 07/22/2010] [Indexed: 01/12/2023]
Abstract
Theranostic nanomedicine is emerging as a promising therapeutic paradigm. It takes advantage of the high capacity of nanoplatforms to ferry cargo and loads onto them both imaging and therapeutic functions. The resulting nanosystems, capable of diagnosis, drug delivery and monitoring of therapeutic response, are expected to play a significant role in the dawning era of personalized medicine, and much research effort has been devoted toward that goal. A convenience in constructing such function-integrated agents is that many nanoplatforms are already, themselves, imaging agents. Their well-developed surface chemistry makes it easy to load them with pharmaceutics and promote them to be theranostic nanosystems. Iron oxide nanoparticles, quantum dots, carbon nanotubes, gold nanoparticles and silica nanoparticles, have been previously well investigated in the imaging setting and are candidate nanoplatforms for building up nanoparticle-based theranostics. In the current article, we will outline the progress along this line, organized by the category of the core materials. We will focus on construction strategies and will discuss the challenges and opportunities associated with this emerging technology.
Collapse
|
45
|
Ma Q, Su X. Near-infrared quantum dots: synthesis, functionalization and analytical applications. Analyst 2010; 135:1867-77. [DOI: 10.1039/c0an00233j] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|