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Boecker M, Lander S, Müller R, Gaus AL, Neumann C, Moser J, Micheel M, Turchanin A, Delius MV, Synatschke CV, Leopold K, Wächtler M, Weil T. Screening Cobalt-based Catalysts on Multicomponent CdSe@CdS Nanorods for Photocatalytic Hydrogen Evolution in Aqueous Media. ACS APPLIED NANO MATERIALS 2024; 7:14146-14153. [PMID: 38962509 PMCID: PMC11217917 DOI: 10.1021/acsanm.4c01645] [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: 03/20/2024] [Revised: 06/01/2024] [Accepted: 06/07/2024] [Indexed: 07/05/2024]
Abstract
We present CdSe@CdS nanorods coated with a redox-active polydopamine (PDA) layer functionalized with cobaloxime-derived photocatalysts for efficient solar-driven hydrogen evolution in aqueous environments. The PDA-coating provides reactive groups for the functionalization of the nanorods with different molecular catalysts, facilitates charge separation and transfer of electrons from the excited photosensitizer to the catalyst, and reduces photo-oxidation of the photosensitizer. X-ray photoelectron spectroscopy (XPS) confirms the successful functionalization of the nanorods with cobalt-based catalysts, whereas the catalyst loading per nanorod is quantified by total reflection X-ray fluorescence spectrometry (TXRF). A systematic comparison of different types of cobalt-based catalysts was carried out, and their respective performance was analyzed in terms of the number of nanorods and the amount of catalyst in each sample [turnover number, (TON)]. This study shows that the performance of these multicomponent photocatalysts depends strongly on the catalyst loading and less on the specific structure of the molecular catalyst. Lower catalyst loading is advantageous for increasing the TON because the catalysts compete for a limited number of charge carriers at the nanoparticle surface. Therefore, increasing the catalyst loading relative to the absolute amount of hydrogen produced does not lead to a steady increase in the photocatalytic activity. In our work, we provide insights into how the performance of a multicomponent photocatalytic system is determined by the intricate interplay of its components. We identify the stable attachment of the catalyst and the ratio between the catalyst and photosensitizer as critical parameters that must be fine-tuned for optimal performance.
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Affiliation(s)
- Marcel Boecker
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, Mainz 55128, Germany
| | - Sarah Lander
- Department
of Chemistry and State Research Center OPTIMAS, RPTU Kaiserslautern-Landau, Kaiserslautern 67663, Germany
| | - Riccarda Müller
- Institute
of Analytical and Bioanalytical Chemistry, University Ulm, Ulm 89081, Germany
| | - Anna-Laurine Gaus
- Institute
of Organic Chemistry I, University Ulm, Ulm 89081, Germany
| | - Christof Neumann
- Institute
of Physical Chemistry, Friedrich Schiller University Jena, Jena 07743, Germany
| | - Julia Moser
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, Mainz 55128, Germany
| | - Mathias Micheel
- Department
of Chemistry and State Research Center OPTIMAS, RPTU Kaiserslautern-Landau, Kaiserslautern 67663, Germany
| | - Andrey Turchanin
- Institute
of Physical Chemistry, Friedrich Schiller University Jena, Jena 07743, Germany
- Abbe Center
of Photonics (ACP), Jena 07745, Germany
| | - Max von Delius
- Institute
of Organic Chemistry I, University Ulm, Ulm 89081, Germany
| | - Christopher V. Synatschke
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, Mainz 55128, Germany
| | - Kerstin Leopold
- Institute
of Analytical and Bioanalytical Chemistry, University Ulm, Ulm 89081, Germany
| | - Maria Wächtler
- Department
of Chemistry and State Research Center OPTIMAS, RPTU Kaiserslautern-Landau, Kaiserslautern 67663, Germany
| | - Tanja Weil
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, Mainz 55128, Germany
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2
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Rebecchi L, Rubino A, Camellini A, Kriegel I. Light-driven reversible charge transfers from ITO nanocrystals. Front Chem 2023; 11:1288681. [PMID: 38025072 PMCID: PMC10652769 DOI: 10.3389/fchem.2023.1288681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023] Open
Abstract
The combination of semiconductors and redox active molecules for light-driven energy storage systems has emerged as a powerful solution for the exploitation of solar batteries. On account of this, transparent conductive oxide (TCO) nanocrystals (NCs) demonstrated to be interesting materials, thanks to the photo-induced charge accumulation enabling light harvesting and storage. The charge transfer process after light absorption, at the base of the proper use of these semiconductors, is a key step, often resulting in non-reversible transformations of the chemicals involved. However, if considering the photocharging through TCO NCs not only as a charge provider for the system but potentially as part of the storage role, the reversible transformation of the redox compound represents a crucial aspect. In this paper, we explore the possible interaction of indium tin oxide (ITO) NCs and typical redox mediators commonly employed in catalytic applications with a twofold scope of enhancing or supporting the light-induced charge accumulation on the metal oxide NC side and controlling the reversibility of the whole process. The work presented focuses on the effect of the redox properties on the doped metal oxide response, both from the stability point of view and the photodoping performance, by monitoring the changes in the optical behavior of ITO/redox hybrid systems upon ultraviolet illumination.
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Affiliation(s)
- Luca Rebecchi
- Functional Nanosystems, Istituto Italiano di Tecnologia, Genova, Italy
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Genova, Italy
| | - Andrea Rubino
- Functional Nanosystems, Istituto Italiano di Tecnologia, Genova, Italy
| | - Andrea Camellini
- Functional Nanosystems, Istituto Italiano di Tecnologia, Genova, Italy
- Department of Mechanical Engineering, Columbia University, New York, NY, United States
| | - Ilka Kriegel
- Functional Nanosystems, Istituto Italiano di Tecnologia, Genova, Italy
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3
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Pluta D, Kuper H, Graf RT, Wesemann C, Rusch P, Becker JA, Bigall NC. Optical properties of NIR photoluminescent PbS nanocrystal-based three-dimensional networks. NANOSCALE ADVANCES 2023; 5:5005-5014. [PMID: 37705785 PMCID: PMC10496766 DOI: 10.1039/d3na00404j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/25/2023] [Indexed: 09/15/2023]
Abstract
The assembly of nanocrystals (NCs) into three-dimensional network structures is a recently established strategy to produce macroscopic materials with nanoscopic properties. These networks can be formed by the controlled destabilization of NC colloids and subsequent supercritical drying to obtain NC-based aerogels. Even though this strategy has been used for many different semiconductor NCs, the emission of NC-based aerogels is limited to the ultraviolet and visible and no near-infrared (NIR) emitting NC-based aerogels have been investigated in literature until now. In the present work we have optimized a gelation route of NIR emitting PbS and PbS/CdS quantum dots (QDs) by means of a recently established gel formation method using trivalent ions to induce the network formation. Thereby, depending on the surface ligands and QDs used the resulting network structure is different. We propose, that the ligand affinity to the nanocrystal surface plays an essential role during network formation, which is supported by theoretical calculations. The optical properties were investigated with a focus on their steady-state and time resolved photoluminescence (PL). Unlike in PbS/CdS aerogels, the absorption of PbS aerogels and their PL shift strongly. For all aerogels the PL lifetimes are reduced in comparison to those of the building blocks with this reduction being especially pronounced in the PbS aerogels.
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Affiliation(s)
- Denis Pluta
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover Callinstraße 3A 30167 Hannover Germany
- Laboratory of Nano and Quantum Engineering, Leibniz University Hannover Schneiderberg 39 30167 Hannover Germany
| | - Henning Kuper
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover Callinstraße 3A 30167 Hannover Germany
| | - Rebecca T Graf
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover Callinstraße 3A 30167 Hannover Germany
- Laboratory of Nano and Quantum Engineering, Leibniz University Hannover Schneiderberg 39 30167 Hannover Germany
| | - Christoph Wesemann
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover Callinstraße 3A 30167 Hannover Germany
| | - Pascal Rusch
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover Callinstraße 3A 30167 Hannover Germany
- Laboratory of Nano and Quantum Engineering, Leibniz University Hannover Schneiderberg 39 30167 Hannover Germany
| | - Joerg August Becker
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover Callinstraße 3A 30167 Hannover Germany
| | - Nadja C Bigall
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover Callinstraße 3A 30167 Hannover Germany
- Laboratory of Nano and Quantum Engineering, Leibniz University Hannover Schneiderberg 39 30167 Hannover Germany
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4
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Schlenkrich J, Lübkemann-Warwas F, Graf RT, Wesemann C, Schoske L, Rosebrock M, Hindricks KDJ, Behrens P, Bahnemann DW, Dorfs D, Bigall NC. Investigation of the Photocatalytic Hydrogen Production of Semiconductor Nanocrystal-Based Hydrogels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208108. [PMID: 36828791 DOI: 10.1002/smll.202208108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/03/2023] [Indexed: 05/25/2023]
Abstract
Destabilization of a ligand-stabilized semiconductor nanocrystal solution with an oxidizing agent can lead to a macroscopic highly porous self-supporting nanocrystal network entitled hydrogel, with good accessibility to the surface. The previously reported charge carrier delocalization beyond a single nanocrystal building block in such gels can extend the charge carrier mobility and make a photocatalytic reaction more probable. The synthesis of ligand-stabilized nanocrystals with specific physicochemical properties is possible, thanks to the advances in colloid chemistry made in the last decades. Combining the properties of these nanocrystals with the advantages of nanocrystal-based hydrogels will lead to novel materials with optimized photocatalytic properties. This work demonstrates that CdSe quantum dots, CdS nanorods, and CdSe/CdS dot-in-rod-shaped nanorods as nanocrystal-based hydrogels can exhibit a much higher hydrogen production rate compared to their ligand-stabilized nanocrystal solutions. The gel synthesis through controlled destabilization by ligand oxidation preserves the high surface-to-volume ratio, ensures the accessible surface area even in hole-trapping solutions and facilitates photocatalytic hydrogen production without a co-catalyst. Especially with such self-supporting networks of nanocrystals, the problem of colloidal (in)stability in photocatalysis is circumvented. X-ray photoelectron spectroscopy and photoelectrochemical measurements reveal the advantageous properties of the 3D networks for application in photocatalytic hydrogen production.
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Affiliation(s)
- Jakob Schlenkrich
- Leibniz University Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany
| | - Franziska Lübkemann-Warwas
- Leibniz University Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany
- Cluster of Excellence PhoenixD (Photonics, Optics and Engineering -Innovation Across Disciplines), Leibniz University Hannover, 30167, Hannover, Germany
| | - Rebecca T Graf
- Leibniz University Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany
- Laboratory of Nano- and Quantum Engineering, Leibniz University Hannover, 30167, Hannover, Germany
| | - Christoph Wesemann
- Leibniz University Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany
| | - Larissa Schoske
- Leibniz University Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany
- Cluster of Excellence PhoenixD (Photonics, Optics and Engineering -Innovation Across Disciplines), Leibniz University Hannover, 30167, Hannover, Germany
| | - Marina Rosebrock
- Leibniz University Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany
- Cluster of Excellence PhoenixD (Photonics, Optics and Engineering -Innovation Across Disciplines), Leibniz University Hannover, 30167, Hannover, Germany
| | - Karen D J Hindricks
- Cluster of Excellence PhoenixD (Photonics, Optics and Engineering -Innovation Across Disciplines), Leibniz University Hannover, 30167, Hannover, Germany
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstraße 9, 30167, Hannover, Germany
| | - Peter Behrens
- Cluster of Excellence PhoenixD (Photonics, Optics and Engineering -Innovation Across Disciplines), Leibniz University Hannover, 30167, Hannover, Germany
- Laboratory of Nano- and Quantum Engineering, Leibniz University Hannover, 30167, Hannover, Germany
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstraße 9, 30167, Hannover, Germany
| | - Detlef W Bahnemann
- Leibniz University Hannover, Institute of Technical Chemistry, Callinstraße 5, 30167, Hannover, Germany
- Laboratory "Photoactive Nanocomposite Materials", Saint-Petersburg State University, Ulyanovskaya str. 1, Saint-Petersburg, 198504, Peterhof, Russia
| | - Dirk Dorfs
- Cluster of Excellence PhoenixD (Photonics, Optics and Engineering -Innovation Across Disciplines), Leibniz University Hannover, 30167, Hannover, Germany
- Laboratory of Nano- and Quantum Engineering, Leibniz University Hannover, 30167, Hannover, Germany
| | - Nadja C Bigall
- Cluster of Excellence PhoenixD (Photonics, Optics and Engineering -Innovation Across Disciplines), Leibniz University Hannover, 30167, Hannover, Germany
- Laboratory of Nano- and Quantum Engineering, Leibniz University Hannover, 30167, Hannover, Germany
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5
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Micheel M, Dong K, Amirav L, Wächtler M. Lateral charge migration in 1D semiconductor-metal hybrid photocatalytic systems. J Chem Phys 2023; 158:2882241. [PMID: 37093989 DOI: 10.1063/5.0144785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/24/2023] [Indexed: 04/26/2023] Open
Abstract
Colloidal nanorods based on CdS or CdSe, functionalized with metal particles, have proven to be efficient catalysts for light-driven hydrogen evolution. Seeded CdSe@CdS nanorods have shown increasing performance with increasing rod length. This observation was rationalized by the increasing lifetime of the separated charges, as a large distance between holes localized in the CdSe seed and electrons localized at the metal tip decreases their recombination rate. However, the impact of nanorod length on the electron-to-tip localization efficiency or pathway remained an open question. Therefore, we investigated the photo-induced electron transfer to the metal in a series of Ni-tipped CdSe@CdS nanorods with varying length. We find that the transfer processes occurring from the region close to the semiconductor-metal interface, the rod region, and the CdSe seed region depend in different ways on the rods' length. The rate of the fastest process from excitonic states generated directly at the interface is independent of the rod length, but the relative amplitude decreases with increasing rod length, as the weight of the interface region is decreasing. The transfer of electrons to the metal tip from excitons generated in the CdS rod region depends strongly on the length of the nanorods, which indicates an electron transport-limited process, i.e., electron diffusion toward the interface region, followed by fast interface crossing. The transfer originating from the CdSe excitonic states again shows no significant length dependence in its time constant, as it is probably limited by the rate of overcoming the shallow confinement in the CdSe seed.
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Affiliation(s)
- Mathias Micheel
- Department Functional Interfaces, Leibniz-Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Kaituo Dong
- Schulich Faculty of Chemistry, The Russell Berrie Nanotechnology Institute, The Nancy and Stephen Grand Technion Energy Program, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Lilac Amirav
- Schulich Faculty of Chemistry, The Russell Berrie Nanotechnology Institute, The Nancy and Stephen Grand Technion Energy Program, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Maria Wächtler
- Department Functional Interfaces, Leibniz-Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
- Chemistry Department and State Research Center Optimas, RPTU Kaiserslautern-Landau, Erwin-Schrödinger-Straße 52, 67663 Kaiserslautern, Germany
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6
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Ben-Shahar Y, Stone D, Banin U. Rich Landscape of Colloidal Semiconductor-Metal Hybrid Nanostructures: Synthesis, Synergetic Characteristics, and Emerging Applications. Chem Rev 2023; 123:3790-3851. [PMID: 36735598 PMCID: PMC10103135 DOI: 10.1021/acs.chemrev.2c00770] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nanochemistry provides powerful synthetic tools allowing one to combine different materials on a single nanostructure, thus unfolding numerous possibilities to tailor their properties toward diverse functionalities. Herein, we review the progress in the field of semiconductor-metal hybrid nanoparticles (HNPs) focusing on metal-chalcogenides-metal combined systems. The fundamental principles of their synthesis are discussed, leading to a myriad of possible hybrid architectures including Janus zero-dimensional quantum dot-based systems and anisotropic quasi 1D nanorods and quasi-2D platelets. The properties of HNPs are described with particular focus on emergent synergetic characteristics. Of these, the light-induced charge-separation effect across the semiconductor-metal nanojunction is of particular interest as a basis for the utilization of HNPs in photocatalytic applications. The extensive studies on the charge-separation behavior and its dependence on the HNPs structural characteristics, environmental and chemical conditions, and light excitation regime are surveyed. Combining the advanced synthetic control with the charge-separation effect has led to demonstration of various applications of HNPs in different fields. A particular promise lies in their functionality as photocatalysts for a variety of uses, including solar-to-fuel conversion, as a new type of photoinitiator for photopolymerization and 3D printing, and in novel chemical and biomedical uses.
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Affiliation(s)
- Yuval Ben-Shahar
- Department of Physical Chemistry, Israel Institute for Biological Research, P.O. Box 19, Ness Ziona74100, Israel
| | - David Stone
- The Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem91904, Israel
| | - Uri Banin
- The Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem91904, Israel
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7
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Rosner T, Pavlopoulos NG, Shoyhet H, Micheel M, Wächtler M, Adir N, Amirav L. The Other Dimension-Tuning Hole Extraction via Nanorod Width. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193343. [PMID: 36234471 PMCID: PMC9565346 DOI: 10.3390/nano12193343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 05/10/2023]
Abstract
Solar-to-hydrogen generation is a promising approach to generate clean and renewable fuel. Nanohybrid structures such as CdSe@CdS-Pt nanorods were found favorable for this task (attaining 100% photon-to-hydrogen production efficiency); yet the rods cannot support overall water splitting. The key limitation seems to be the rate of hole extraction from the semiconductor, jeopardizing both activity and stability. It is suggested that hole extraction might be improved via tuning the rod's dimensions, specifically the width of the CdS shell around the CdSe seed in which the holes reside. In this contribution, we successfully attain atomic-scale control over the width of CdSe@CdS nanorods, which enables us to verify this hypothesis and explore the intricate influence of shell diameter over hole quenching and photocatalytic activity towards H2 production. A non-monotonic effect of the rod's diameter is revealed, and the underlying mechanism for this observation is discussed, alongside implications towards the future design of nanoscale photocatalysts.
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Affiliation(s)
- Tal Rosner
- Schulich Faculty of Chemistry, The Russell Berrie Nanotechnology Institute, The Nancy and Stephen Grand Technion Energy Program, Technion−Israel Institute of Technology, Haifa 32000, Israel
| | - Nicholas G. Pavlopoulos
- Schulich Faculty of Chemistry, The Russell Berrie Nanotechnology Institute, The Nancy and Stephen Grand Technion Energy Program, Technion−Israel Institute of Technology, Haifa 32000, Israel
| | - Hagit Shoyhet
- Schulich Faculty of Chemistry, The Russell Berrie Nanotechnology Institute, The Nancy and Stephen Grand Technion Energy Program, Technion−Israel Institute of Technology, Haifa 32000, Israel
| | - Mathias Micheel
- Department Functional Interfaces, Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Maria Wächtler
- Department Functional Interfaces, Leibniz Institute of Photonic Technology Jena, Albert-Einstein-Straße 9, 07745 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Correspondence: (M.W.); (N.A.); (L.A.)
| | - Noam Adir
- Schulich Faculty of Chemistry, The Russell Berrie Nanotechnology Institute, The Nancy and Stephen Grand Technion Energy Program, Technion−Israel Institute of Technology, Haifa 32000, Israel
- Correspondence: (M.W.); (N.A.); (L.A.)
| | - Lilac Amirav
- Schulich Faculty of Chemistry, The Russell Berrie Nanotechnology Institute, The Nancy and Stephen Grand Technion Energy Program, Technion−Israel Institute of Technology, Haifa 32000, Israel
- Correspondence: (M.W.); (N.A.); (L.A.)
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8
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Liu D, Nyakuchena J, Maity R, Geng X, Mahajan JP, Hewa-Rahinduwage CC, Peng Y, Huang J, Luo L. Quantum dot gels as efficient and unique photocatalysts for organic synthesis. Chem Commun (Camb) 2022; 58:11260-11263. [PMID: 36112149 DOI: 10.1039/d2cc03872b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report CdS quantum dot (QD) gels as highly efficient and unique photocatalysts for organic synthesis. We found that the photocatalytic activity of CdS QD gel was superior to phosphine oxide- and thiolate-capped CdS QDs for dehalogenation and α-amine arylation reactions because of the high accessibility of its surface sites to the substrates. In addition, we discovered the unique reactivity of CdS QD gel for ring-opening during α-amine arylation of tetrahydroisoquinoline via the reductive cleavage of C-N bonds. QD gels provide new opportunities in photocatalysis due to their unique surface interactions with the substrates or intermediates.
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Affiliation(s)
- Daohua Liu
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
| | - James Nyakuchena
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin, 53201, USA.
| | - Rajendra Maity
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
| | - Xin Geng
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
| | - Jyoti P Mahajan
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
| | | | - Yi Peng
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
| | - Jier Huang
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin, 53201, USA.
| | - Long Luo
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
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9
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Kuroi K, Yamada M, Kawamura I, Jung M, Pack CG, Fujii F. FTIR study of the surface-ligand exchange reaction with glutathione on biocompatible rod-shaped CdSe/CdS semiconductor nanocrystals. Phys Chem Chem Phys 2022; 24:13356-13364. [DOI: 10.1039/d2cp00574c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Semiconductor nanocrystals (SNCs) are an essential optical tool in the life sciences. Application of SNCs to living systems requires that their surfaces be covered with biocompatible molecules. The surface capping...
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10
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Boecker M, Micheel M, Mengele AK, Neumann C, Herberger T, Marchesi D’Alvise T, Liu B, Undisz A, Rau S, Turchanin A, Synatschke CV, Wächtler M, Weil T. Rhodium-Complex-Functionalized and Polydopamine-Coated CdSe@CdS Nanorods for Photocatalytic NAD + Reduction. ACS APPLIED NANO MATERIALS 2021; 4:12913-12919. [PMID: 34977477 PMCID: PMC8713362 DOI: 10.1021/acsanm.1c02994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/28/2021] [Indexed: 05/27/2023]
Abstract
We report on a photocatalytic system consisting of CdSe@CdS nanorods coated with a polydopamine (PDA) shell functionalized with molecular rhodium catalysts. The PDA shell was implemented to enhance the photostability of the photosensitizer, to act as a charge-transfer mediator between the nanorods and the catalyst, and to offer multiple options for stable covalent functionalization. This allows for spatial proximity and efficient shuttling of charges between the sensitizer and the reaction center. The activity of the photocatalytic system was demonstrated by light-driven reduction of nicotinamide adenine dinucleotide (NAD+) to its reduced form NADH. This work shows that PDA-coated nanostructures present an attractive platform for covalent attachment of reduction and oxidation reaction centers for photocatalytic applications.
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Affiliation(s)
- Marcel Boecker
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, 55128 Mainz, Germany
| | - Mathias Micheel
- Department
of Functional Interfaces, Leibniz Institute
of Photonic Technology, 07745 Jena, Germany
| | | | - Christof Neumann
- Institute
of Physical Chemistry, Friedrich Schiller
University Jena, 07743 Jena, Germany
| | - Tilmann Herberger
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, 55128 Mainz, Germany
| | - Tommaso Marchesi D’Alvise
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, 55128 Mainz, Germany
| | - Bei Liu
- Department
of Functional Interfaces, Leibniz Institute
of Photonic Technology, 07745 Jena, Germany
- Institute
of Physical Chemistry, Friedrich Schiller
University Jena, 07743 Jena, Germany
| | - Andreas Undisz
- Institute
of Materials Science and Engineering, Chemnitz
University of Technology, 09125 Chemnitz, Germany
- Otto
Schott Institute of Materials Research, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Sven Rau
- Institute
of Inorganic Chemistry I, Ulm University, 89081 Ulm, Germany
| | - Andrey Turchanin
- Institute
of Physical Chemistry, Friedrich Schiller
University Jena, 07743 Jena, Germany
- Abbe
Center of Photonics (ACP), Albert-Einstein-Straße 6, 07745 Jena, Germany
| | - Christopher V. Synatschke
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, 55128 Mainz, Germany
| | - Maria Wächtler
- Department
of Functional Interfaces, Leibniz Institute
of Photonic Technology, 07745 Jena, Germany
- Institute
of Physical Chemistry, Friedrich Schiller
University Jena, 07743 Jena, Germany
- Abbe
Center of Photonics (ACP), Albert-Einstein-Straße 6, 07745 Jena, Germany
| | - Tanja Weil
- Department
for Synthesis of Macromolecules, Max Planck
Institute for Polymer Research, 55128 Mainz, Germany
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11
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Ye J, Byranvand MM, Martínez CO, Hoye RLZ, Saliba M, Polavarapu L. Defect Passivation in Lead-Halide Perovskite Nanocrystals and Thin Films: Toward Efficient LEDs and Solar Cells. Angew Chem Int Ed Engl 2021; 60:21636-21660. [PMID: 33730428 PMCID: PMC8518834 DOI: 10.1002/anie.202102360] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Indexed: 11/16/2022]
Abstract
Lead-halide perovskites (LHPs), in the form of both colloidal nanocrystals (NCs) and thin films, have emerged over the past decade as leading candidates for next-generation, efficient light-emitting diodes (LEDs) and solar cells. Owing to their high photoluminescence quantum yields (PLQYs), LHPs efficiently convert injected charge carriers into light and vice versa. However, despite the defect-tolerance of LHPs, defects at the surface of colloidal NCs and grain boundaries in thin films play a critical role in charge-carrier transport and nonradiative recombination, which lowers the PLQYs, device efficiency, and stability. Therefore, understanding the defects that play a key role in limiting performance, and developing effective passivation routes are critical for achieving advances in performance. This Review presents the current understanding of defects in halide perovskites and their influence on the optical and charge-carrier transport properties. Passivation strategies toward improving the efficiencies of perovskite-based LEDs and solar cells are also discussed.
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Affiliation(s)
- Junzhi Ye
- Cavendish LaboratoryUniversity of Cambridge19, JJ Thomson AvenueCambridgeCB3 0HEUK
| | - Mahdi Malekshahi Byranvand
- Institute for Photovoltaics (ipv)University of StuttgartPfaffenwaldring 4770569StuttgartGermany
- Helmholtz Young Investigator Group FRONTRUNNERIEK5-PhotovoltaikForschungszentrum Jülich52425JülichGermany
| | - Clara Otero Martínez
- CINBIOUniversidade de VigoMaterials Chemistry and Physics GroupDepartment of Physical ChemistryCampus Universitario Lagoas, Marcosende36310VigoSpain
| | - Robert L. Z. Hoye
- Department of MaterialsImperial College LondonExhibition RoadLondonSW7 2AZUK
| | - Michael Saliba
- Institute for Photovoltaics (ipv)University of StuttgartPfaffenwaldring 4770569StuttgartGermany
- Helmholtz Young Investigator Group FRONTRUNNERIEK5-PhotovoltaikForschungszentrum Jülich52425JülichGermany
| | - Lakshminarayana Polavarapu
- CINBIOUniversidade de VigoMaterials Chemistry and Physics GroupDepartment of Physical ChemistryCampus Universitario Lagoas, Marcosende36310VigoSpain
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Ye J, Byranvand MM, Martínez CO, Hoye RLZ, Saliba M, Polavarapu L. Defect Passivation in Lead‐Halide Perovskite Nanocrystals and Thin Films: Toward Efficient LEDs and Solar Cells. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102360] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Junzhi Ye
- Cavendish Laboratory University of Cambridge 19, JJ Thomson Avenue Cambridge CB3 0HE UK
| | - Mahdi Malekshahi Byranvand
- Institute for Photovoltaics (ipv) University of Stuttgart Pfaffenwaldring 47 70569 Stuttgart Germany
- Helmholtz Young Investigator Group FRONTRUNNER IEK5-Photovoltaik Forschungszentrum Jülich 52425 Jülich Germany
| | - Clara Otero Martínez
- CINBIO Universidade de Vigo Materials Chemistry and Physics Group Department of Physical Chemistry Campus Universitario Lagoas, Marcosende 36310 Vigo Spain
| | - Robert L. Z. Hoye
- Department of Materials Imperial College London Exhibition Road London SW7 2AZ UK
| | - Michael Saliba
- Institute for Photovoltaics (ipv) University of Stuttgart Pfaffenwaldring 47 70569 Stuttgart Germany
- Helmholtz Young Investigator Group FRONTRUNNER IEK5-Photovoltaik Forschungszentrum Jülich 52425 Jülich Germany
| | - Lakshminarayana Polavarapu
- CINBIO Universidade de Vigo Materials Chemistry and Physics Group Department of Physical Chemistry Campus Universitario Lagoas, Marcosende 36310 Vigo Spain
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Schleusener A, Micheel M, Benndorf S, Rettenmayr M, Weigand W, Wächtler M. Ultrafast Electron Transfer from CdSe Quantum Dots to an [FeFe]-Hydrogenase Mimic. J Phys Chem Lett 2021; 12:4385-4391. [PMID: 33939438 DOI: 10.1021/acs.jpclett.1c01028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The combination of CdSe nanoparticles as photosensitizers with [FeFe]-hydrogenase mimics is known to result in efficient systems for light-driven hydrogen generation with reported turnover numbers in the order of 104-106. Nevertheless, little is known about the details of the light-induced charge-transfer processes. Here, we investigate the time scale of light-induced electron transfer kinetics for a simple model system consisting of CdSe quantum dots (QDs) of 2.0 nm diameter and a simple [FeFe]-hydrogenase mimic adsorbed to the QD surface under noncatalytic conditions. Our (time-resolved) spectroscopic investigation shows that both hot electron transfer on a sub-ps time scale and band-edge electron transfer on a sub-10 ps time scale from photoexcited QDs to adsorbed [FeFe]-hydrogenase mimics occur. Fast recombination via back electron transfer is observed in the absence of a sacrificial agent or protons which, under real catalytic conditions, would quench remaining holes or could stabilize the charge separation, respectively.
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Affiliation(s)
- Alexander Schleusener
- Department Functional Interfaces, Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745 Jena, Germany
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Mathias Micheel
- Department Functional Interfaces, Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745 Jena, Germany
| | - Stefan Benndorf
- Institute of Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Markus Rettenmayr
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany
| | - Wolfgang Weigand
- Institute of Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Maria Wächtler
- Department Functional Interfaces, Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745 Jena, Germany
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Abbe Center of Photonics, Friedrich Schiller University Jena, Albert-Einstein-Str. 6, 07745 Jena, Germany
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