Showing 901 - 920 results of 953 for search '"absorption spectrum"', query time: 0.13s Refine Results
  1. 901
  2. 902

    Carbon nanodot with highly localized excitonic emission for efficient luminescent solar concentrator by Zang Jinhao, Jiao Fuhang, Wei Jianyong, Lou Qing, Zheng Guangsong, Shen Chenglong, Deng Yuan, Soheyli Ehsan, Sahraei Reza, Yang Xun, Zang Huaping, Zhou Weimin, Fan Wei, Wang Shaoyi, Dong Lin, Shan Chong-Xin

    Published 2023-10-01
    “…The orange-emitting carbon nanodots (O-CDs) with highly localized excitonic emission are prepared via atomic condensation of doped pyrrolic nitrogen, delivering a high photoluminescence quantum yield of 80 % and a suitable Stokes shift with absorption spectrum situated in the visible region. The O-CDs are embedded in polyvinylpyrrolidone to obtain a highly transparent, stable and environmentally friendly O-CDs-based LSC. …”
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    Article
  3. 903

    Exploration of photovoltaic behavior of benzodithiophene based non-fullerene chromophores: first theoretical framework for highly efficient photovoltaic parameters by Iqra Shafiq, Muhammad Khalid, Muhammad Adnan Asghar, Muhammad Adeel, Muhammad Fayyaz ur Rehman, Asad Syed, Ali H. Bahkali, Abdallah M. Elgorban, Muhammad Safwan Akram

    Published 2023-05-01
    “…All the designed chromophores exhibited wider absorption spectrum (λmax = 845.039–786.552 nm) along with lower excitation energy as compared to R (λmax = 770.040 nm) except D1 and D9. …”
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    Article
  4. 904

    Numerical Simulation of High-Performance CsPbI<sub>3</sub>/FAPbI<sub>3</sub> Heterojunction Perovskite Solar Cells by Yongjin Gan, Di Zhao, Binyi Qin, Xueguang Bi, Yucheng Liu, Weilian Ning, Ruizhao Yang, Qubo Jiang

    Published 2022-10-01
    “…To broaden the absorption spectrum of cells, enhance the cell stability, and avoid high costs, a novel perovskite solar cell (PSC) with the structure of fluorine-doped tin oxide (FTO)/ZnO/CsPbI<sub>3</sub>/FAPbI<sub>3</sub>/CuSCN/Au is designed using the solar cell capacitance simulator (SCAPS) software. …”
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    Article
  5. 905

    Lead-Free Perovskite Homojunction-Based HTM-Free Perovskite Solar Cells: Theoretical and Experimental Viewpoints by Sajid Sajid, Salem Alzahmi, Imen Ben Salem, Jongee Park, Ihab M. Obaidat

    Published 2023-03-01
    “…The simulation results show that high hole mobility and a narrow band gap of cesium tin iodide (CsSnI<sub>3</sub>) boosted the hole collection and absorption spectrum, respectively. Additionally, the homojunction’s built-in electric field, which was identified using SCAPS simulations, promoted the directed transport of the photo-induced charges, lowering carrier recombination losses. …”
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  6. 906

    Judd–Ofelt and luminescence study of Dysprosium-doped lithium borosilicate glasses for lasers and w-LEDs by Ismail Kashif, Asmaa Ratep

    Published 2022-11-01
    “…Nephelauxetic ratio (β) and bonding parameters (δ) computed using the absorption spectrum. The Judd–Ofelt parameters (Ω2, Ω4, and Ω6) obtained demonstrates the covalent and asymmetric nature of dysprosium ions. …”
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    Article
  7. 907
  8. 908

    Gas-phase detection methods using diode lasers by Baran, S, Stuart Baran

    Published 2009
    “…These effects are quantified through use of a Galatry fit to each absorption spectrum. The statistical significance associated with the use of such a model, and the physical meaning of the results, are examined and discussed.…”
    Thesis
  9. 909

    Solid-liquid interface studies of titania and nanocarbon materials by Wang, C

    Published 2019
    “…With the adaptation of CasaXPS software, a novel MB absorption spectrum peak deconvolution technic is proposed. …”
    Thesis
  10. 910

    Development of Inhibitive Enzyme Assay for Heavy Metal Detection Using Phosphomolybdo-Reductase Produce by Bacillus Sp. Isolate A. rzi by Othman, Ahmad Razi

    Published 2010
    “…Optimizations studies carried out for this bacterium showed that maximum temperature and pH supporting molybdate reduction were room temperature and pH 6.0, respectively. The absorption spectrum of the molybdenum blue product showed a maximum peak at 865 nm and a shoulder at 700 nm indicating the involvement of a phosphomolybdate intermediate. …”
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    Thesis
  11. 911

    Silver nanoparticle enhanced the optical properties of the rare earth doped magnesium-zinc-sulfophosphate glass by Ahmadi, Fahimeh

    Published 2017
    “…There is no evidence in Raman spectra of RE (RE= Sm, Dy and Er) doped P2O5- MgO-ZnSO4 glasses to confirm the incorporation of the sulfate ions to the network formation. The absorption spectrum of RE (RE = Sm, Dy and Er) doped P2O5-MgOZnSO4 glasses with and without incorporation of Ag nanoparticles is originated from electronic transitions from the ground level to various excited levels belonging to the 4f9 electronic configuration of the RE ions. …”
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    Thesis
  12. 912

    Influence of the Location of Electron-Donating 3,4-Ethylenedioxythiophene (EDOT) Moiety in the A–π–D–π–A Type Conjugated Molecules on the Optoelectronic Properties and Photovoltaic... by Lilei Wang, Ying Zhang, Xiang Guan, Wei Gao, Yi Lin, Qun Luo, Hongwei Tan, Hai-Bo Yang, Chang-Qi Ma

    Published 2021-04-01
    “…To red-shift the absorption spectrum of benzo[1,2-b:4,5-b']dithiophene (BDT) based A–π–D–π–A type compounds, an electron-donating 3,4-ethylenedioxythiophene (EDOT) moiety was introduced into the π-conjugation bridge unit. …”
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    Article
  13. 913

    Green Synthesis of <i>Cocos nucifera</i>-Based Nanomaterials and Mechanistic Basis of Their Antimicrobial Action by Zuriatou Yajeh Tanka, Naphtali Odogu Ankoro, Vincent Ngouana, Franklin Loïc Tchinda Taghu, Abongta Lum Mforbesi, Branly-Natalien Nguena-Dongue, Julius Nsami Ndi, Boniface Pone Kamdem, Paul Keilah Lunga, Fabrice Fekam Boyom

    Published 2024-03-01
    “…As a result, nanoparticles were successfully synthesized, as evidenced by the ultraviolet–visible spectroscopy analysis that revealed an intense absorption spectrum at 433 nm. Fourier Transform Infrared Spectroscopy presented the functional group moieties involved as a capping and reducing agent in the synthesis of the nanomaterials. …”
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    Article
  14. 914

    Mechanosynthesis of Mesoporous Bi-Doped TiO<sub>2</sub>: The Effect of Bismuth Doping and Ball Milling on the Crystal Structure, Optical Properties, and Photocatalytic Activity by Sofía Estrada-Flores, Catalina M. Pérez-Berumen, Tirso E. Flores-Guia, Luis A. García-Cerda, Joelis Rodríguez-Hernández, Tzipatly A. Esquivel-Castro, Antonia Martínez-Luévanos

    Published 2022-12-01
    “…The incorporation of Bi into the TiO<sub>2</sub> lattice causes the crystallite size to decrease and, consequently, the absorption spectrum of TiO<sub>2</sub> to extend into the visible region of the electromagnetic spectrum, resulting in a lower band gap (E<sub>g</sub>) value. …”
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    Article
  15. 915

    米糠蛋白碳量子点的表征及应用Characterization and application of carbon dots from rice bran protein by 李小敏,胡志雄,张维农,齐玉堂,张燕鹏,杜言,左陈 LI Xiaomin, HU Zhixiong, ZHANG Weinong, QI Yutang, ZHANG Yanpeng, DU Yan, ZUO Chen

    Published 2022-02-01
    “…The optical properties, morphology and surface functional groups of the prepared rice bran protein carbon dots (RBP-CDs) were characterized by UV-vis absorption spectrum, fluorescence spectrum, high-resolution transmission electron microscope (TEM) and Fourier transform infrared spectroscopy (FTIR), the stability of RBP-CDs in different environments and their application in sensing, cell imaging and fluorescent staining were investigated. …”
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    Article
  16. 916

    Structural, Optical, and Electrical Investigations of Nd<sub>2</sub>O<sub>3</sub>-Doped PVA/PVP Polymeric Composites for Electronic and Optoelectronic Applications by Samer H. Zyoud, Ali Almoadi, Thekrayat H. AlAbdulaal, Mohammed S. Alqahtani, Farid A. Harraz, Mohammad S. Al-Assiri, Ibrahim S. Yahia, Heba Y. Zahran, Mervat I. Mohammed, Mohamed Sh. Abdel-wahab

    Published 2023-03-01
    “…The transmittance data reached 88% for the host PVA/PVP blend matrix, while the absorption increased with the high dopant quantities of PB-Nd<sup>+3</sup>. The absorption spectrum fitting (ASF) and Tauc’s models optically estimated the direct and indirect energy bandgaps, where the addition of PB-Nd<sup>+3</sup> concentrations resulted in a drop in the energy bandgap values. …”
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    Article
  17. 917

    Ti<sub>3</sub>C<sub>2</sub>-MXene/NiO Nanocomposites-Decorated CsPbI<sub>3</sub> Perovskite Active Materials under UV-Light Irradiation for the Enhancement of Crystal-Violet Dye Ph... by Asma A. Alothman, Mohammad Rizwan Khan, Munirah D. Albaqami, Sonaimuthu Mohandoss, Zeid A. Alothman, Naushad Ahmad, Khadraa N. Alqahtani

    Published 2023-11-01
    “…Furthermore, the UV–visible absorption spectrum of the Ti<sub>3</sub>C<sub>2</sub>-MXene/NiO/CsPbI<sub>3</sub> composite demonstrated a reduced band gap of 2.41 eV, which is lower than that of Ti<sub>3</sub>C<sub>2</sub>-MXene/NiO (3.10 eV) and Ti<sub>3</sub>C<sub>2</sub>-MXene (1.60 eV). …”
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    Article
  18. 918

    Preparation and Study of Photocatalytic Properties of (M(M=Pt, Ag and Au)-TiO<sub>2</sub>)@MoS<sub>2</sub> Nanocomposites by Liying Ju, Dunhua Hong, Xing Jin, Hongxian Liu, Xiude Yang, Liying Nie, Qibin Liu, Zhixi Gao, Wei Zhu, Yi Wang, Xiang Yang

    Published 2023-06-01
    “…The results confirmed that TiO<sub>2</sub> and M(Pt, Ag and Au) nanoparticles (NPs) were evenly distributed on MoS<sub>2</sub> nanosheets (NSs) to form (M(M=Pt, Ag and Au)-TiO<sub>2</sub>)@MoS<sub>2</sub> nanocomposite heterojunction. The UV–Vis absorption spectrum test results indicated that (Pt(5 wt%)-TiO<sub>2</sub>(15 wt%))@MoS<sub>2</sub> ternary heterojunction nanocomposites exhibited the highest photocatalysis activity, with the maximum value of 99.0% compared to 93% for TiO<sub>2</sub>(15 wt%)@MoS<sub>2</sub>, 96.5% for (Ag(5 wt%)-TiO<sub>2</sub>(15 wt%))@MoS<sub>2</sub>, and 97.8% for (Au(5 wt%)-TiO<sub>2</sub>(15 wt%))@MoS<sub>2</sub> within 9 min. …”
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  19. 919
  20. 920

    Performance Optimization of CsPb(I<sub>1–x</sub>Br<sub>x</sub>)<sub>3</sub> Inorganic Perovskite Solar Cells with Gradient Bandgap by Luning Wang, Sui Yang, Tingting Xi, Qingchen Yang, Jie Yi, Hongxing Li, Jianxin Zhong

    Published 2023-05-01
    “…Unfortunately, the substitution of Br ion would enlarge bandgap reducing the absorption spectrum range. To optimize the balance between band gap and stability, introducing and optimizing the spatial bandgap gradation configuration is an effective method to broaden the light absorption and benefit the perovskite phase stability. …”
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