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  • Wiley  (52)
  • 1
    Online Resource
    Online Resource
    Hybrid Block Copolymer/Perovskite Heterointerfaces for Efficient Solar Cells
    Wiley ; 2023
    In:  Advanced Materials Vol. 35, No. 1 ( 2023-01)
    Details
    In: Advanced Materials, Wiley, Vol. 35, No. 1 ( 2023-01)
    Abstract: Solution processable semiconductors like organics and emerging lead halide perovskites (LHPs) are ideal candidates for photovoltaics combining high performance and flexibility with reduced manufacturing cost. Moreover, the study of hybrid semiconductors would lead to advanced structures and deep understanding that will propel this field even further. Herein, a novel device architecture involving block copolymer/perovskite hybrid bulk heterointerfaces is investigated, such a modification could enhance light absorption, create an energy level cascade, and provides a thin hydrophobic layer, thus enabling enhanced carrier generation, promoting energy transfer and preventing moisture invasion, respectively. The resulting hybrid block copolymer/perovskite solar cell exhibits a champion efficiency of 24.07% for 0.0725 cm 2 ‐sized devices and 21.44% for 1 cm 2 ‐sized devices, respectively, together with enhanced stability, which is among the highest reports of organic/perovskite hybrid devices. More importantly, this approach has been effectively extended to other LHPs with different chemical compositions like MAPbI 3 and CsPbI 3 , which may shed light on the design of highly efficient block copolymer/perovskite hybrid materials and architectures that would overcome current limitations for realistic application exploration.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    URL: Article
    DOI: 10.1002/adma.v35.1
    DOI: 10.1002/adma.202206047
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 1474949-X
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  • 2
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    Online Resource
    Effect of substrate stiffness on the functions of rat bone marrow and adipose tissue derived mesenchymal stem cells in vitro
    Wiley ; 2014
    In:  Journal of Biomedical Materials Research Part A Vol. 102, No. 4 ( 2014-04), p. 1092-1101
    Details
    In: Journal of Biomedical Materials Research Part A, Wiley, Vol. 102, No. 4 ( 2014-04), p. 1092-1101
    Abstract: Regenerative medicine treatments that combine the use of cells and materials may open new options for tissue/organ repair and regeneration. The microenvironment of mesenchymal stem cells (MSCs) strictly regulates their self‐renewal and functions. In this study, when rat bone marrow derived MSCs (rBMSCs) and rat adipose tissue derived MSCs (rAMSCs) in passages 2–4 were cultured on different substrates, they presented the cellular functions to be dependent of substrate stiffness. The cells attached better on the softer substrate than on the stiffer one. The substrate stiffness had no significant influence on the proliferation of those cells. However, the substrate stiffness significantly promoted the osteogenic differentiation of the two kinds of stem cells. Furthermore, rBMSCs cultured on the same stiffness expressed more osteoblast‐related markers than rAMSCs. In addition, combined biomaterials and biochemical reagents treatment yielded a stronger effect on osteogenic differentiation of MSCs than either treatment alone. These results have significant implications for further extending our capabilities in engineering functional tissue substitutes. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 1092–1101, 2014.
    Type of Medium: Online Resource
    ISSN: 1549-3296 , 1552-4965
    URL: Issue
    URL: Article
    DOI: 10.1002/jbm.a.v102.4
    DOI: 10.1002/jbm.a.34774
    Language: English
    Publisher: Wiley
    Publication Date: 2014
    detail.hit.zdb_id: 1477192-5
    SSG: 12
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  • 3
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    Homojunction Perovskite Quantum Dot Solar Cells with over 1 µm‐Thick Photoactive Layer
    Wiley ; 2022
    In:  Advanced Materials Vol. 34, No. 2 ( 2022-01)
    Details
    In: Advanced Materials, Wiley, Vol. 34, No. 2 ( 2022-01)
    Abstract: The solution‐processed solar cells based on colloidal quantum dots (QDs) reported so far generally suffer from poor thickness tolerance and it is difficult for them to be compatible with large‐scale solution printing technology. However, the recently emerged perovskite QDs, with unique high defect tolerance, are particularly well‐suited for efficient photovoltaics. Herein, efficient CsPbI 3 perovskite QD solar cells are demonstrated first with over 1 µm‐thick active layer by developing an internal P/N homojunction. Specifically, an organic dopant 2,2′‐(perfluoronaphthalene‐2,6‐diylidene) dimalononitrile (F6TCNNQ) is introduced into CsPbI 3 QD arrays to prepare different carrier‐type QD arrays. The detailed characterizations reveal successful charge‐transfer doping of QDs and carrier‐type transformation from n‐type to p‐type. Subsequently, the P/N homojunction perovskite QD solar cell is assembled using different carrier‐type QDs, delivering an enhanced power conversion efficiency of 15.29%. Most importantly, this P/N homojunction strategy realizes remarkable thickness tolerance of QD solar cells, showing a record high efficiency of 12.28% for a 1.2 µm‐thick QD active‐layer and demonstrating great potential for the future printing manufacturing of QDs solar cells.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    URL: Article
    DOI: 10.1002/adma.v34.2
    DOI: 10.1002/adma.202105977
    RVK:
    UA 1538
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1474949-X
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  • 4
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    Online Resource
    Electroluminescent Solar Cells Based on CsPbI 3 Perovskite Quantum Dots
    Wiley ; 2022
    In:  Advanced Functional Materials Vol. 32, No. 6 ( 2022-02)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 32, No. 6 ( 2022-02)
    Abstract: All‐inorganic CsPbX 3 (X  =  Cl, Br, I, or mixed halides) perovskite quantum dots (QDs) exhibit tunable optical bandgaps and narrow emission peaks, which have received worldwide interest in the field of both photovoltaics (PVs) and light‐emitting diodes (LEDs). Herein, it is reported a discovery that CsPbI 3 perovskite QD solar cell can simultaneously deliver high PV performance and intense electroluminescence. In specific, the multifunctional CsPbI 3 QD film is fabricated through a simple yet efficient solid‐state‐ligand exchange process using a tailored organic ligand triphenyl phosphite (TPPI). The function of QD surface manipulation using TPPI here is proven to be twofold, balancing the carrier transport and effectively passivating the QD surface to produce conductive and emissive QD film. The CsPbI 3 perovskite QD solar cell delivers a champion efficiency of 15.21% with improved open circuit voltage and high fill factor. Concurrently functioning as a red LED, the CsPbI 3 perovskite QD solar cell outputs electric power to light conversion efficiency approaching 4%, a record value for QD electroluminescent PVs. The results here indicate that these versatile perovskite QDs may be a promising candidate for fabricating multifunctional optoelectronic devices.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v32.6
    DOI: 10.1002/adfm.202108615
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
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  • 5
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    Development and verification of a discriminate algorithm for diagnosing post‐neurosurgical bacterial meningitis—A multicenter observational study
    Wiley ; 2020
    In:  Journal of Clinical Laboratory Analysis Vol. 34, No. 2 ( 2020-02)
    Details
    In: Journal of Clinical Laboratory Analysis, Wiley, Vol. 34, No. 2 ( 2020-02)
    Abstract: To evaluate the diagnostic accuracy of cerebrospinal fluid (CSF)–based routine clinical examinations for post‐neurosurgical bacterial meningitis (PNBM) in multicenter post‐neurosurgical patients. Methods The diagnostic accuracies of routine examinations to distinguish between PNBM and post‐neurosurgical aseptic meningitis (PNAM) were evaluated by determining the values of the area under the curve (AUC) of the receiver operating characteristic curve in a retrospective analysis of post‐neurosurgical patients in four centers. Results An algorithm was constructed using the logistic analysis as a classical method to maximize the capacity for differentiating the two classes by integrating the measurements of five variables. The AUC value of this algorithm was 0.907, which was significantly higher than those of individual routine blood/CSF examinations. The predicted value from 70 PNBM patients was greater than the cutoff value, and the diagnostic accuracy rate was 75.3%. The results of 181 patients with PNAM showed that 172 patients could be correctly identified with specificity of 95.3%, while the overall correctness rate of the algorithm was 88.6%. Conclusions Routine biomarkers such as CSF/blood glucose ratio (C/B‐Glu), CSF lactate (C‐Lac), CSF glucose concentration (C‐Glu), CSF leukocyte count (C‐Leu), and blood glucose concentration (B‐Glu) can be used for auxiliary diagnosis of PNBM. The multicenter retrospective research revealed that the combination of the five abovementioned biomarkers can effectively improve the efficacy of the PNBM diagnosis.
    Type of Medium: Online Resource
    ISSN: 0887-8013 , 1098-2825
    URL: Issue
    URL: Article
    DOI: 10.1002/jcla.v34.2
    DOI: 10.1002/jcla.23069
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2001635-9
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  • 6
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    ChemInform Abstract: Highly Enantioselective Three-Component Povarov Reaction Catalyzed by SPINOL-Phosphoric Acids.
    Wiley ; 2013
    In:  ChemInform Vol. 44, No. 21 ( 2013-05-21), p. no-no
    Details
    In: ChemInform, Wiley, Vol. 44, No. 21 ( 2013-05-21), p. no-no
    Type of Medium: Online Resource
    ISSN: 0931-7597
    URL: Issue
    URL: Article
    DOI: 10.1002/chin.v44.21
    DOI: 10.1002/chin.201321172
    Language: English
    Publisher: Wiley
    Publication Date: 2013
    detail.hit.zdb_id: 2110203-X
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  • 7
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    Oriented Arrangement: The Origin of Versatility for Porous Graphene Materials
    Wiley ; 2017
    In:  Small Vol. 13, No. 34 ( 2017-09)
    Details
    In: Small, Wiley, Vol. 13, No. 34 ( 2017-09)
    Abstract: Macroscopic porous graphene materials composed of graphene sheets have demonstrated their advantageous aspects in diverse application areas. It is essential to maximize their excellent performances by rationally controlling the sheet arrangement and pore structure. Bulk porous graphene materials with oriented pore structure and arrangement of graphene sheets are prepared by marrying electrolyte‐assisted self‐assembly and shear‐force‐induced alignment of graphene oxide sheets, and the super elasticity and anisotropic mechanical, electrical, and thermal properties induced by this unique structure are systematically investigated. Its application in pressure sensing exhibits ultrahigh sensitivity of 313.23 kPa −1 for detecting ultralow pressure variation below 0.5 kPa, and it shows high retention rate for continuously intercepting dye molecules with a high flux of ≈18.7 L m −2 h −1 bar −1 and a dynamic removal rate of 510 mg m −2 h −1 .
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    URL: Article
    DOI: 10.1002/smll.v13.34
    DOI: 10.1002/smll.201701231
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2168935-0
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  • 8
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    Function–structure coupling: White matter functional magnetic resonance imaging hyper‐activation associates with structural integrity reductions in schizophrenia
    Wiley ; 2021
    In:  Human Brain Mapping Vol. 42, No. 12 ( 2021-08-15), p. 4022-4034
    Details
    In: Human Brain Mapping, Wiley, Vol. 42, No. 12 ( 2021-08-15), p. 4022-4034
    Abstract: White matter (WM) microstructure deficit may be an underlying factor in the brain dysconnectivity hypothesis of schizophrenia using diffusion tensor imaging (DTI). However, WM dysfunction is unclear in schizophrenia. This study aimed to investigate the association between structural deficits and functional disturbances in major WM tracts in schizophrenia. Using functional magnetic resonance imaging (fMRI) and DTI, we developed the skeleton‐based WM functional analysis, which could achieve voxel‐wise function–structure coupling by projecting the fMRI signals onto a skeleton in WM. We measured the fractional anisotropy (FA) and WM low‐frequency oscillation (LFO) and their couplings in 93 schizophrenia patients and 122 healthy controls (HCs). An independent open database (62 schizophrenia patients and 71 HCs) was used to test the reproducibility. Finally, associations between WM LFO and five behaviour assessment categories (cognition, emotion, motor, personality and sensory) were examined. This study revealed a reversed pattern of structure and function in frontotemporal tracts, as follows. (a) WM hyper‐LFO was associated with reduced FA in schizophrenia. (b) The function–structure association was positive in HCs but negative in schizophrenia patients. Furthermore, function–structure dissociation was exacerbated by long illness duration and severe negative symptoms. (c) WM activations were significantly related to cognition and emotion. This study indicated function–structure dys‐coupling, with higher LFO and reduced structural integration in frontotemporal WM, which may reflect a potential mechanism in WM neuropathologic processing of schizophrenia.
    Type of Medium: Online Resource
    ISSN: 1065-9471 , 1097-0193
    URL: Issue
    URL: Article
    DOI: 10.1002/hbm.v42.12
    DOI: 10.1002/hbm.25536
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 1492703-2
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  • 9
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    Experimental investigation on direct‐contact condensation of subatmospheric pressure steam in cocurrent flow packed tower
    Wiley ; 2022
    In:  Energy Science & Engineering Vol. 10, No. 8 ( 2022-08), p. 2954-2969
    Details
    In: Energy Science & Engineering, Wiley, Vol. 10, No. 8 ( 2022-08), p. 2954-2969
    Abstract: Exhaust steam condensation equipment is an important component in thermal power generation systems. Direct‐contact condensation offers high heat transfer efficiency, small flow resistance, simple structure, and less scaling; therefore, its application to exhaust steam condensation equipment is conducive to reducing equipment investment and operation costs. In this study, the direct‐contact condensation of subatmospheric pressure steam (exhaust steam) is investigated in a cocurrent flow packed tower. The effects of steam temperature, steam flow, cooling water temperature, and cooling water flow on the condensation rate, subcooling, number of liquid‐phase heat transfer units ( NTU L ), and total volume heat transfer coefficient ( K V ) are investigated. The results show that the direct‐contact condensation of exhaust steam can yield a high condensation rate, low subcooling, and good stability in the cocurrent flow packed tower. Lower steam temperature, higher steam flow, higher inlet‐water temperature, and lower water flow are conducive to the increase in NTU L . It is discovered that NTU L and K V can be expressed by dimensionless parameters of flow and temperature, and that the empirical correlations of NTU L and K V agree well with experimental data.
    Type of Medium: Online Resource
    ISSN: 2050-0505 , 2050-0505
    URL: Issue
    URL: Article
    DOI: 10.1002/ese3.v10.8
    DOI: 10.1002/ese3.1181
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2720339-6
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  • 10
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    Seasonal variation of vegetation productivity over an alpine meadow in the Qinghai–Tibet Plateau in China: modeling the interactions of vegetation productivity, phenology, and the soil freeze–thaw process
    Wiley ; 2013
    In:  Ecological Research Vol. 28, No. 2 ( 2013-03), p. 271-282
    Details
    In: Ecological Research, Wiley, Vol. 28, No. 2 ( 2013-03), p. 271-282
    Abstract: Phenology controls the seasonal activities of vegetation on land surfaces and thus plays a fundamental role in regulating photosynthesis and other ecosystem processes. Therefore, accurately simulating phenology and soil processes is critical to ecosystem and climate modeling. In this study, we present an integrated ecosystem model of plant productivity, plant phenology, and the soil freeze–thaw process to (1) improve the quality of simulations of soil thermal regimes and (2) estimate the seasonal variability of plant phenology and its effects on plant productivity in high‐altitude seasonal frozen regions. We tested different model configurations and parameterizations, including a refined soil stratification scheme that included unfrozen water in frozen soil, a remotely sensed diagnostic phenology scheme, and a modified prognostic phenology scheme, to describe the seasonal variation in vegetation. After refined soil layering resolution and the inclusion of unfrozen water in frozen soil, the results show that the model adequately reproduced the soil thermal regimes and their interactions observed at the site. The inclusion of unfrozen water in frozen soil was found to have a significant effect on soil moisture simulation during the spring but only a small effect on soil temperature simulation at this site. Moreover, the performance of improved phenology schemes was good. The phenology model accurately predicted the start and end of phenology, and its precise prediction of phenology variation allows an improved simulation of vegetation production.
    Type of Medium: Online Resource
    ISSN: 0912-3814 , 1440-1703
    URL: Article
    DOI: 10.1007/s11284-012-1015-8
    Language: English
    Publisher: Wiley
    Publication Date: 2013
    detail.hit.zdb_id: 2023900-2
    SSG: 12
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