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  1. Article ; Online: Advancements in Interfacial Engineering for Perovskite Light-Emitting Diodes.

    Lee, Jaeho / Xie, Zixi / Wang, Lianzhou / Hou, Jingwei

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2024  , Page(s) e202400372

    Abstract: Perovskite light-emitting diodes (PeLEDs) have gained significant attention due to their promising optoelectronic properties and potential applications in the fields of lighting and display devices. Despite their potential, PeLEDs face challenges related ...

    Abstract Perovskite light-emitting diodes (PeLEDs) have gained significant attention due to their promising optoelectronic properties and potential applications in the fields of lighting and display devices. Despite their potential, PeLEDs face challenges related to stability, high turn-on voltage, and low external quantum efficiency (EQE) which has restricted their broad acceptance. Most research efforts have predominantly focused on refining the properties of the perovskite films. However, it is becoming more apparent that interfacial layers and device architecture are crucial for achieving stability and high efficiency, making them indispensable components in PeLED development. This perspective highlights remarkable advancements in PeLED devices, with a primary focus on modifying adjacent layers interfacing with the perovskite film.
    Language English
    Publishing date 2024-05-08
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202400372
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  2. Article ; Online: On the disparity in reporting Li-rich layered oxide cathode materials.

    Lin, Tongen / Seaby, Trent / Huang, Xia / Wang, Lianzhou

    Chemical communications (Cambridge, England)

    2023  Volume 59, Issue 20, Page(s) 2888–2902

    Abstract: Lithium-rich layered oxides are considered one of the most promising cathode materials for next generation lithium-ion batteries due to their extraordinary specific capacity of over 280 mA h ... ...

    Abstract Lithium-rich layered oxides are considered one of the most promising cathode materials for next generation lithium-ion batteries due to their extraordinary specific capacity of over 280 mA h g
    Language English
    Publishing date 2023-03-07
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc04614h
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  3. Article ; Online: Unveiling the Role of Water in Heterogeneous Photocatalysis of Methanol Conversion for Efficient Hydrogen Production.

    Xiao, Mu / Baktash, Ardeshir / Lyu, Miaoqiang / Zhao, Guangyu / Jin, Yonggang / Wang, Lianzhou

    Angewandte Chemie (International ed. in English)

    2024  Volume 63, Issue 21, Page(s) e202402004

    Abstract: Water molecules, which act as both solvent and reactant, play critical roles in photocatalytic reactions for methanol conversion. However, the influence of water on the adsorption of methanol and desorption of liquid products, which are two essential ... ...

    Abstract Water molecules, which act as both solvent and reactant, play critical roles in photocatalytic reactions for methanol conversion. However, the influence of water on the adsorption of methanol and desorption of liquid products, which are two essential steps that control the performance in photocatalysis, has been well under-explored. Herein, we reveal the role of water in heterogeneous photocatalytic processes of methanol conversion on the platinized carbon nitride (Pt/C
    Language English
    Publishing date 2024-04-18
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202402004
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  4. Article: Addressing the stability challenge of photo(electro)catalysts towards solar water splitting.

    Xiao, Mu / Wang, Zhiliang / Maeda, Kazuhiko / Liu, Gang / Wang, Lianzhou

    Chemical science

    2023  Volume 14, Issue 13, Page(s) 3415–3427

    Abstract: The efficiency and stability of photo(electro)catalytic devices are the main criteria towards practical solar fuel production. The efficiency of photocatalysts/photoelectrodes has been intensively pursued and significant progress has been achieved over ... ...

    Abstract The efficiency and stability of photo(electro)catalytic devices are the main criteria towards practical solar fuel production. The efficiency of photocatalysts/photoelectrodes has been intensively pursued and significant progress has been achieved over the past decades. However, the development of durable photocatalysts/photoelectrodes remains one of the biggest challenges for solar fuel production. Moreover, the lack of a feasible and reliable appraisal procedure makes it difficult to evaluate the durability of photocatalysts/photoelectrodes. Herein, a systematic process is proposed for the stability evaluation of photocatalysts/photoelectrodes. A standard operational condition should be used for the stability assessment and the stability results should be reported with the run time, operational stability, and material stability. A widely adopted standardisation for stability assessment will benefit the reliable comparison of results from different laboratories. Furthermore, the deactivation of photo(electro)catalysts is defined as a 50% decrease in productivity. The purpose of the stability assessment should aim to figure out the deactivation mechanisms of photo(electro)catalysts. A deep understanding of the deactivation mechanisms is essential for the design and development of efficient and stable photocatalysts/photoelectrodes. This work will provide insights into the stability assessment of photo(electro)catalysts and advance practical solar fuel production.
    Language English
    Publishing date 2023-02-24
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d2sc06981d
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  5. Article ; Online: Bilayer 2D-3D Perovskite Heterostructures for Efficient and Stable Solar Cells.

    Chen, Peng / He, Dongxu / Huang, Xia / Zhang, Chengxi / Wang, Lianzhou

    ACS nano

    2023  Volume 18, Issue 1, Page(s) 67–88

    Abstract: With a stacking-layered architecture, the bilayer two-dimensional-three-dimensional (2D-3D) perovskite heterostructure (PHS) not only eliminates surface defects but also protects the 3D perovskite matrix from external stimuli. However, these bilayer 2D- ... ...

    Abstract With a stacking-layered architecture, the bilayer two-dimensional-three-dimensional (2D-3D) perovskite heterostructure (PHS) not only eliminates surface defects but also protects the 3D perovskite matrix from external stimuli. However, these bilayer 2D-3D PHSs suffer from impaired interfacial charge carrier transport due to the relatively insulating 2D perovskite fragments with a random phase distribution. Over the past decade, substantial efforts have been devoted to pioneering molecular and structural designs of the 2D perovskite interlayers for improving their charge carrier mobility, which enables state-of-the-art perovskite solar cells with high power conversion efficiency and exceptional operational stability. Herein, this review offers a comprehensive and up-to-date overview on the recent progress of bilayer 2D-3D PHSs, encompassing advancements on spacer cation engineering, interfacial charge carrier modification, advanced deposition protocols, and characterization techniques. Then, the evolutionary trajectory of bilayer 2D-3D PHSs is outlined by summarizing its mainstream development trends, followed by a perspective discussion about its future research opportunities toward efficient and durable perovskite solar cells.
    Language English
    Publishing date 2023-12-22
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.3c09176
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  6. Article ; Online: The role of ion migration, octahedral tilt, and the A-site cation on the instability of Cs

    Li, Weilun / Hao, Mengmeng / Baktash, Ardeshir / Wang, Lianzhou / Etheridge, Joanne

    Nature communications

    2023  Volume 14, Issue 1, Page(s) 8523

    Abstract: Organic-inorganic hybrid perovskites are promising materials for the next generation photovoltaics and optoelectronics; however, their practical application has been hindered by poor structural stability mainly caused by ion migration and external ... ...

    Abstract Organic-inorganic hybrid perovskites are promising materials for the next generation photovoltaics and optoelectronics; however, their practical application has been hindered by poor structural stability mainly caused by ion migration and external stimuli. Understanding the mechanism(s) of ion migration and structure decomposition is thus critical. Here we observe the sequence of structural changes at the atomic level that precede structural decomposition in the technologically important Cs
    Language English
    Publishing date 2023-12-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-023-44235-6
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  7. Article ; Online: Modulating the Structure and Composition of Single-Atom Electrocatalysts for CO

    Chen, Weiren / Jin, Xixiong / Zhang, Lingxia / Wang, Lianzhou / Shi, Jianlin

    Advanced science (Weinheim, Baden-Wurttemberg, Germany)

    2023  Volume 11, Issue 9, Page(s) e2304424

    Abstract: Electrochemical ... ...

    Abstract Electrochemical CO
    Language English
    Publishing date 2023-12-03
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2808093-2
    ISSN 2198-3844 ; 2198-3844
    ISSN (online) 2198-3844
    ISSN 2198-3844
    DOI 10.1002/advs.202304424
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  8. Article ; Online: Skin B/N-doped anatase TiO

    Deng, Guoqiang / Kang, Xiangdong / Yang, Yongqiang / Wang, Lianzhou / Liu, Gang

    Journal of colloid and interface science

    2023  Volume 649, Page(s) 140–147

    Abstract: The limited visible-light-responsive photoactivities of most doped wide-bandgap photocatalysts with widened absorption range have long been the obstacles for the efficient conversion of solar energy to chemical energy by photocatalysis. The weak ... ...

    Abstract The limited visible-light-responsive photoactivities of most doped wide-bandgap photocatalysts with widened absorption range have long been the obstacles for the efficient conversion of solar energy to chemical energy by photocatalysis. The weak transport ability of visible-light-induced low-energy charge carriers, and numerous recombination centers arising from the energy-band modifiers along the transport path are two major factors responsible for such a mismatch. A potential solution is to shorten the transport path of photo-induced charges in well-modulated light absorbers with low-dimensional structure and the spatially concentrated dopants underneath their surfaces. As a proof of concept, skin B/N-doped red anatase TiO
    Language English
    Publishing date 2023-06-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2023.06.046
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    In stock of ZB MED Bonn / Germany

    Z 71/707: Show issues

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  9. Article ; Online: Skin B/N-doped anatase TiO2 {0 0 1} nanoflakes for visible-light photocatalytic water oxidation

    Deng, Guoqiang / Kang, Xiangdong / Yang, Yongqiang / Wang, Lianzhou / Liu, Gang

    Journal of Colloid And Interface Science. 2023 Nov., v. 649 p.140-147

    2023  

    Abstract: The limited visible-light-responsive photoactivities of most doped wide-bandgap photocatalysts with widened absorption range have long been the obstacles for the efficient conversion of solar energy to chemical energy by photocatalysis. The weak ... ...

    Abstract The limited visible-light-responsive photoactivities of most doped wide-bandgap photocatalysts with widened absorption range have long been the obstacles for the efficient conversion of solar energy to chemical energy by photocatalysis. The weak transport ability of visible-light-induced low-energy charge carriers, and numerous recombination centers arising from the energy-band modifiers along the transport path are two major factors responsible for such a mismatch. A potential solution is to shorten the transport path of photo-induced charges in well-modulated light absorbers with low-dimensional structure and the spatially concentrated dopants underneath their surfaces. As a proof of concept, skin B/N-doped red anatase TiO₂ {001} nanoflakes with the absorption edge up to 675 nm were synthesized in this study. Experimental results revealed that boron dopants in the TiO₂ nanoflakes from the hydrolysis of nanosized TiB₂ played a crucial role in controlling nitrogen doping in the surface layer of the nanoflakes. As visible light excitation occurs at the surface layer, the photons can be sufficiently absorbed by the formed energy levels at the surface layers, and the photogenerated charge carriers can effectively migrate to the surface, thus leading to efficient visible-light-responsive photocatalytic oxygen evolution activity from water oxidation.
    Keywords absorption ; boron ; energy ; hydrolysis ; light ; nanomaterials ; nitrogen ; oxidation ; oxygen production ; photocatalysis ; photocatalysts ; solar energy ; titanium dioxide ; Visible light absorption ; Red TiO2 ; Nanoflakes ; Transport distance ; Photocatalytic water oxidation
    Language English
    Dates of publication 2023-11
    Size p. 140-147.
    Publishing place Elsevier Inc.
    Document type Article ; Online
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2023.06.046
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    In stock of ZB MED Bonn / Germany

    Z 71/707: Show issues

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  10. Article: Unveiling general rules governing the dimensional evolution of branched TiO₂ and impacts on photoelectrochemical behaviors

    Butburee, Teera / Bai, Yang / Wang, Lianzhou

    Journal of materials chemistry A. 2021 Oct. 26, v. 9, no. 41

    2021  

    Abstract: Branched nanostructures represent a unique group of nanoarchitectures exhibiting an advantageous high surface area and excellent charge transport for energy conversion applications compared to their bulk counterparts. Especially, branched titanium ... ...

    Abstract Branched nanostructures represent a unique group of nanoarchitectures exhibiting an advantageous high surface area and excellent charge transport for energy conversion applications compared to their bulk counterparts. Especially, branched titanium dioxide (TiO₂) has been reported as a promising photocatalyst in several applications. However, precise control of its nanostructures and crystal phases remains challenging. Normally, branched TiO₂ nanostructures (BTNs) have been fabricated by a multi-step synthesis, and only a particular dimension is achieved. Herein, we present generic rules governing the structural evolution of BTNs from zero-dimensional (0D) to one-dimensional (1D) and two-dimensional (2D) structures by a facile one-pot hydrothermal synthesis with controlled isotropic and anisotropic crystal growth and symmetry breaking. Various dimensional BTNs with a controllable number of branches and crystal phases are obtained. In addition, these nanoarchitectures are directly grown on a conductive substrate and could be readily used as a photoelectrode. The dimension-dependent photocatalytic behaviors are carefully investigated in photoelectrochemical (PEC) water splitting. An optimized 1D nanostructure produces a photocurrent density of up to 0.87 mA cm⁻² at 1.23 V vs. RHE. The excellent PEC performance could be attributed to the appropriate band alignment and the unique structure that is beneficial for charge transport and separation.
    Keywords anisotropy ; electric current ; energy conversion ; isotropy ; photocatalysis ; photocatalysts ; photoelectrodes ; surface area ; titanium dioxide
    Language English
    Dates of publication 2021-1026
    Size p. 23313-23322.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2702232-8
    ISSN 2050-7496 ; 2050-7488
    ISSN (online) 2050-7496
    ISSN 2050-7488
    DOI 10.1039/d1ta05218g
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