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Volumn 6, Issue , 2016, Pages

Impermeable flexible liquid barrier film for encapsulation of DSSC metal electrodes

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EID: 84973525478     PISSN: None     EISSN: 20452322     Source Type: Journal    
DOI: 10.1038/srep27422     Document Type: Article
Times cited : (8)

References (46)
  • 1
    • 84885950932 scopus 로고    scopus 로고
    • Graphene and graphene oxide and their uses in barrier polymers
    • Yoo, B. M., Shin, H. J., Yoon, H. W. & Park, H. B. Graphene and Graphene Oxide and their uses in Barrier Polymers. J. Appl. Polym. Sci. 131, 39628-39650 (2014).
    • (2014) J. Appl. Polym. Sci. , vol.131 , pp. 39628-39650
    • Yoo, B.M.1    Shin, H.J.2    Yoon, H.W.3    Park, H.B.4
  • 2
    • 0029410159 scopus 로고
    • Technology and applications of edible protective films
    • Guilbert, S., Gontard, N. & Cuq, B. Technology and Applications of Edible Protective Films. Packag. Technol. Sci. 8, 339-346 (1995).
    • (1995) Packag. Technol. Sci. , vol.8 , pp. 339-346
    • Guilbert, S.1    Gontard, N.2    Cuq, B.3
  • 3
    • 0038343568 scopus 로고    scopus 로고
    • Reproducible manufacturing of dye-sensitized solar cells on a semi-automated baseline
    • Späth, M. et al. Reproducible Manufacturing of Dye-Sensitized Solar Cells on a Semi-automated Baseline. Prog. Photovolt: Res. Appl. 11, 207-220 (2003).
    • (2003) Prog. Photovolt: Res. Appl. , vol.11 , pp. 207-220
    • Späth, M.1
  • 4
    • 2442707992 scopus 로고    scopus 로고
    • Thin-film permeation-barrier technology for flexible organic light-emitting devices
    • Lewis, J. S. & Weaver, M. S. Thin-Film Permeation-Barrier Technology for Flexible Organic Light-Emitting Devices. IEEE J. Sel. Topics Quantum Electron. 10, 45-57 (2004).
    • (2004) IEEE J. Sel. Topics Quantum Electron. , vol.10 , pp. 45-57
    • Lewis, J.S.1    Weaver, M.S.2
  • 5
    • 79960117044 scopus 로고    scopus 로고
    • Virus-templated self-assembled single-walled carbon nanotubes for highly efficient electron collection in photovoltaic devices
    • Dang, X. et al. Virus-Templated Self-Assembled Single-Walled Carbon Nanotubes for Highly Efficient Electron Collection in Photovoltaic Devices. Nat. Nanotechnol. 6, 377-384 (2011).
    • (2011) Nat. Nanotechnol. , vol.6 , pp. 377-384
    • Dang, X.1
  • 6
    • 84875792650 scopus 로고    scopus 로고
    • Hydrogen bonding-driven rheological modulation of chemically reduced graphene oxide/poly(vinyl alcohol) suspensions and its application in electrospinning
    • Tan, Y., Song, Y. & Zheng, Q. Hydrogen bonding-driven rheological modulation of chemically reduced graphene oxide/poly(vinyl alcohol) suspensions and its application in electrospinning. Nanoscale 4, 6997-7005 (2012).
    • (2012) Nanoscale , vol.4 , pp. 6997-7005
    • Tan, Y.1    Song, Y.2    Zheng, Q.3
  • 7
    • 33846807714 scopus 로고    scopus 로고
    • Portable, parallel grid dye-sensitized solar cell module prepared by screen printing
    • Ramasamy, E., Lee, W. J., Lee, D. Y. & Song, J. S. Portable, Parallel Grid Dye-Sensitized Solar Cell Module Prepared by Screen Printing. J. Power Sources 165, 446-449 (2007).
    • (2007) J. Power Sources , vol.165 , pp. 446-449
    • Ramasamy, E.1    Lee, W.J.2    Lee, D.Y.3    Song, J.S.4
  • 8
    • 84973565402 scopus 로고    scopus 로고
    • Advances in monolithic series-interconnected solar-cell development
    • Takeda, Y., Kato, N. & Toyoda, T. Advances in Monolithic Series-Interconnected Solar-Cell Development. SPIE News room 1, 2009-2011 (2009).
    • (2009) SPIE News Room , vol.1 , pp. 2009-2011
    • Takeda, Y.1    Kato, N.2    Toyoda, T.3
  • 9
    • 77951672906 scopus 로고    scopus 로고
    • An organic redox electrolyte to rival triiodide/iodide in dye-sensitized solar cells
    • Wang, M. et al. An Organic Redox Electrolyte to rival Triiodide/Iodide in Dye-Sensitized Solar Cells. Nat. Chem. 2, 385-389 (2010).
    • (2010) Nat. Chem. , vol.2 , pp. 385-389
    • Wang, M.1
  • 10
    • 84857406650 scopus 로고    scopus 로고
    • Corrosion resistance of metallic substrates for the fabrication dye-sensitized solar cells
    • Reynolds, G. J., Watson, T. M., Williams, G. & Worsley, D. Corrosion Resistance of Metallic Substrates for the Fabrication Dye-Sensitized Solar Cells. ECS Transactions 33, 129-138 (2011).
    • (2011) ECS Transactions , vol.33 , pp. 129-138
    • Reynolds, G.J.1    Watson, T.M.2    Williams, G.3    Worsley, D.4
  • 11
    • 33747802714 scopus 로고    scopus 로고
    • Glass frit overcoated silver grid lines for nano-crystalline dye sensitized solar cells
    • Lee, W. J., Ramasamy, E., Lee, D. Y. & Song, J. S. Glass Frit Overcoated Silver Grid Lines for Nano-Crystalline Dye Sensitized Solar Cells. J. Photochem. Photobiol. A: Chem. 183, 133-137 (2006).
    • (2006) J. Photochem. Photobiol. A: Chem. , vol.183 , pp. 133-137
    • Lee, W.J.1    Ramasamy, E.2    Lee, D.Y.3    Song, J.S.4
  • 12
    • 84879930018 scopus 로고    scopus 로고
    • The effect of graphene presence in flame retarded epoxy resin matrix on the mechanical and flammability properties of glass fiber-reinforced composites
    • Wang, X., Song, L., Pornwannchai, W., Hu, Y. & Kandola, B. The Effect of Graphene Presence in Flame Retarded Epoxy Resin Matrix on the Mechanical and Flammability Properties of Glass Fiber-Reinforced Composites. Composites: Part A 53, 88-96 (2013).
    • (2013) Composites: Part A , vol.53 , pp. 88-96
    • Wang, X.1    Song, L.2    Pornwannchai, W.3    Hu, Y.4    Kandola, B.5
  • 13
    • 72149101218 scopus 로고    scopus 로고
    • Zinc borosilicate thick films as a ag-protective layer for dye-sensitized solar cells
    • Yeon, D.-H., Lee, E.-Y., Kim, K.-G., Park, N.-G. & Cho, Y.-S. Zinc Borosilicate Thick Films as a Ag-Protective Layer for Dye-Sensitized Solar Cells. J. Korean Ceram. Soc. 46, 313-316 (2009).
    • (2009) J. Korean Ceram. Soc. , vol.46 , pp. 313-316
    • Yeon, D.-H.1    Lee, E.-Y.2    Kim, K.-G.3    Park, N.-G.4    Cho, Y.-S.5
  • 14
    • 84878789214 scopus 로고    scopus 로고
    • UV-curable nano-silver containing polyurethane based organic-inorganic hybrid coatings
    • Toker, R. D., Kayaman-Apohan, N. & Kahraman, M. V. UV-Curable Nano-Silver Containing Polyurethane Based Organic-Inorganic Hybrid Coatings. Prog. Org. Coat. 76, 1243-1250 (2013).
    • (2013) Prog. Org. Coat. , vol.76 , pp. 1243-1250
    • Toker, R.D.1    Kayaman-Apohan, N.2    Kahraman, M.V.3
  • 15
    • 84962747079 scopus 로고    scopus 로고
    • Preparation and characterization of silica films on stainless steels substrate by dip coating with PDMS/PHPS solution
    • Shimomura, A., Horikawa, H., Shimomura, J., Hasegawa, Y. & Ogihara, T. Preparation and Characterization of Silica Films on Stainless Steels Substrate by Dip Coating with PDMS/PHPS Solution. Trans. Mater. Res. Soc. Jpn. 37, 27-30 (2012).
    • (2012) Trans. Mater. Res. Soc. Jpn. , vol.37 , pp. 27-30
    • Shimomura, A.1    Horikawa, H.2    Shimomura, J.3    Hasegawa, Y.4    Ogihara, T.5
  • 16
    • 84873127454 scopus 로고    scopus 로고
    • 2D graphene oxide nanosheets as an adhesive over-coating layer for flexible transparent conductive electrodes
    • Moon, I. K. et al. 2D Graphene Oxide Nanosheets as an Adhesive Over-Coating Layer for Flexible Transparent Conductive Electrodes. Sci. Rep. 3, 1112-1118 (2013).
    • (2013) Sci. Rep. , vol.3 , pp. 1112-1118
    • Moon, I.K.1
  • 17
    • 84955328150 scopus 로고    scopus 로고
    • Gas barrier performance of graphene/polymer nanocomposites
    • Cui, Y., Kundalwal, S. & Kumar, S. Gas Barrier Performance of Graphene/Polymer Nanocomposites. Carbon 98, 313-333 (2016).
    • (2016) Carbon , vol.98 , pp. 313-333
    • Cui, Y.1    Kundalwal, S.2    Kumar, S.3
  • 18
    • 84880278573 scopus 로고    scopus 로고
    • Impermeability of graphene and its applications
    • Berry, V. Impermeability of Graphene and Its Applications. Carbon 62, 1-10 (2013).
    • (2013) Carbon , vol.62 , pp. 1-10
    • Berry, V.1
  • 19
    • 84888860974 scopus 로고    scopus 로고
    • Functionalized low defect graphene nanoribbons and polyurethane composite film for improved gas barrier and mechanical performances
    • Xiang, C. et al. Functionalized Low Defect Graphene Nanoribbons and Polyurethane Composite Film for Improved Gas Barrier and Mechanical Performances. ACS nano 7, 10380-10386 (2013).
    • (2013) ACS Nano , vol.7 , pp. 10380-10386
    • Xiang, C.1
  • 20
    • 84945915579 scopus 로고    scopus 로고
    • A review on the use of graphene as a protective coating against corrosion
    • Hu, J. et al. A Review on the use of Graphene as a Protective Coating against Corrosion. Ann. J. Materials. Sci. Eng. 1, 16-31 (2014).
    • (2014) Ann. J. Materials. Sci. Eng. , vol.1 , pp. 16-31
    • Hu, J.1
  • 21
    • 84883228661 scopus 로고    scopus 로고
    • Highly impermeable and transparent graphene as an ultra-thin protection barrier for Ag thin films
    • Zhao, Y. et al. Highly Impermeable and Transparent Graphene as an Ultra-Thin Protection Barrier for Ag Thin Films. J. Mater. Chem. C 1, 4956-4961 (2013).
    • (2013) J. Mater. Chem. C , vol.1 , pp. 4956-4961
    • Zhao, Y.1
  • 22
    • 84904438520 scopus 로고    scopus 로고
    • Layer-structured graphene oxide/polyvinyl alcohol nanocomposites: Dramatic enhancement of hydrogen gas barrier properties
    • Layek, R. K., Das, A. K., Park, M. U., Kim, N. H. & Lee, J. H. Layer-Structured Graphene Oxide/Polyvinyl Alcohol Nanocomposites: Dramatic Enhancement of Hydrogen Gas Barrier Properties. J. Mater. Chem. A 2, 12158-12161 (2014).
    • (2014) J. Mater. Chem. A , vol.2 , pp. 12158-12161
    • Layek, R.K.1    Das, A.K.2    Park, M.U.3    Kim, N.H.4    Lee, J.H.5
  • 23
    • 84900801341 scopus 로고    scopus 로고
    • Enhancing polymer/graphene oxide gas barrier film properties by introducing new crystals
    • Chen, J.-T. et al. Enhancing Polymer/Graphene Oxide Gas Barrier Film Properties by Introducing New Crystals. Carbon 75, 443-451 (2014).
    • (2014) Carbon , vol.75 , pp. 443-451
    • Chen, J.-T.1
  • 24
    • 84916904024 scopus 로고    scopus 로고
    • Impermeable barrier films and protective coatings based on reduced graphene oxide
    • Su, Y. et al. Impermeable Barrier Films and Protective Coatings Based on Reduced Graphene Oxide. Nat. Commun. 5, 4843-4847 (2014).
    • (2014) Nat. Commun. , vol.5 , pp. 4843-4847
    • Su, Y.1
  • 25
    • 84953325840 scopus 로고    scopus 로고
    • Robust superhydrophobic graphene-based composite coatings with self-cleaning and corrosion barrier properties
    • Nine, M. J., Cole, M. A., Johnson, L., Tran, D. N. & Losic, D. Robust Superhydrophobic Graphene-Based Composite Coatings with Self-Cleaning and Corrosion Barrier Properties. ACS Appl. Mater. Interfaces 7, 28482-28493 (2015).
    • (2015) ACS Appl. Mater. Interfaces , vol.7 , pp. 28482-28493
    • Nine, M.J.1    Cole, M.A.2    Johnson, L.3    Tran, D.N.4    Losic, D.5
  • 26
    • 84887228187 scopus 로고    scopus 로고
    • Effect of the incorporation of montmorillonite-layered double hydroxide nanoclays on the corrosion protection of epoxy coatings
    • Dong, Y., Ma, L. & Zhou, Q. Effect of the Incorporation of Montmorillonite-Layered Double Hydroxide Nanoclays on the Corrosion Protection of Epoxy Coatings. J. Coat. Technol. Res. 10, 909-921 (2013).
    • (2013) J. Coat. Technol. Res. , vol.10 , pp. 909-921
    • Dong, Y.1    Ma, L.2    Zhou, Q.3
  • 27
    • 84863312251 scopus 로고    scopus 로고
    • Modified polyvinyl alcohol layer with hydrophobic surface for the passivation of pentacene thin-film transistor
    • Suk, H. J. et al. Modified Polyvinyl Alcohol Layer with Hydrophobic Surface for the Passivation of Pentacene Thin-Film Transistor. J. Nanosci. Nanotechnol. 12, 3214-3218 (2012).
    • (2012) J. Nanosci. Nanotechnol. , vol.12 , pp. 3214-3218
    • Suk, H.J.1
  • 28
    • 84865508397 scopus 로고    scopus 로고
    • Characterization and drug release behavior of highly responsive chip-like electrically modulated reduced graphene oxide-poly (vinyl alcohol) membranes
    • Liu, H.-W., Hu, S.-H., Chen, Y.-W. & Chen, S.-Y. Characterization and Drug Release Behavior of Highly Responsive Chip-Like Electrically Modulated Reduced Graphene Oxide-Poly (vinyl alcohol) Membranes. J. Mater. Chem. 22, 17311-17320 (2012).
    • (2012) J. Mater. Chem. , vol.22 , pp. 17311-17320
    • Liu, H.-W.1    Hu, S.-H.2    Chen, Y.-W.3    Chen, S.-Y.4
  • 29
    • 84904761692 scopus 로고    scopus 로고
    • Poly (vinyl alcohol) reinforced and toughened with poly (dopamine)-treated graphene oxide, and its use for humidity sensing
    • Hwang, S.-H., Kang, D., Ruoff, R. S., Shin, H. S. & Park, Y.-B. Poly (vinyl alcohol) Reinforced and Toughened with Poly (dopamine)-Treated Graphene Oxide, and its Use for Humidity Sensing. ACS nano 8, 6739-6747 (2014).
    • (2014) ACS Nano , vol.8 , pp. 6739-6747
    • Hwang, S.-H.1    Kang, D.2    Ruoff, R.S.3    Shin, H.S.4    Park, Y.-B.5
  • 30
    • 84869171056 scopus 로고    scopus 로고
    • Strong reduced graphene oxide-polymer composites: Hydrogels and wires
    • Feng, H., Li, Y. & Li, J. Strong Reduced Graphene Oxide-Polymer Composites: Hydrogels and Wires. RSC Adv. 2, 6988-6993 (2012).
    • (2012) RSC Adv. , vol.2 , pp. 6988-6993
    • Feng, H.1    Li, Y.2    Li, J.3
  • 31
    • 84907833842 scopus 로고    scopus 로고
    • Fabrication of high strength PVA/rGO composite fibers by gel spinning
    • Li, J., Shao, L., Zhou, X. & Wang, Y. Fabrication of High Strength PVA/rGO Composite Fibers by Gel Spinning. RSC Adv. 4, 43612-43618 (2014).
    • (2014) RSC Adv. , vol.4 , pp. 43612-43618
    • Li, J.1    Shao, L.2    Zhou, X.3    Wang, Y.4
  • 32
    • 84880316038 scopus 로고    scopus 로고
    • Raman spectroscopic imaging of graphene dispersion in polymer composites
    • Shojaee, S. A., Zandiatashbar, A., Koratkar, N. & Lucca, D. A. Raman Spectroscopic Imaging of Graphene Dispersion in Polymer Composites. Carbon 62, 510-513 (2013).
    • (2013) Carbon , vol.62 , pp. 510-513
    • Shojaee, S.A.1    Zandiatashbar, A.2    Koratkar, N.3    Lucca, D.A.4
  • 33
    • 84871646608 scopus 로고    scopus 로고
    • Improved thermal oxidation stability of solution-processable silver nanowire transparent electrode by reduced graphene oxide
    • Ahn, Y., Jeong, Y. & Lee, Y. Improved Thermal Oxidation Stability of Solution-Processable Silver Nanowire Transparent Electrode by Reduced Graphene Oxide. ACS Appl. Mater. Interfaces 4, 6410-6414 (2012).
    • (2012) ACS Appl. Mater. Interfaces , vol.4 , pp. 6410-6414
    • Ahn, Y.1    Jeong, Y.2    Lee, Y.3
  • 34
    • 84879510221 scopus 로고    scopus 로고
    • Transparent, flexible conducting graphene hybrid films with a subpercolating network of silver nanowires
    • Liu, Y., Chang, Q. & Huang, L. Transparent, Flexible Conducting Graphene Hybrid Films with a Subpercolating Network of Silver Nanowires. J. Mater. Chem. C 1, 2970-2974 (2013).
    • (2013) J. Mater. Chem. C , vol.1 , pp. 2970-2974
    • Liu, Y.1    Chang, Q.2    Huang, L.3
  • 35
    • 78650104190 scopus 로고    scopus 로고
    • Reduced graphene oxide by chemical graphitization
    • Moon, I. K., Lee, J., Ruoff, R. S. & Lee, H. Reduced Graphene Oxide by Chemical Graphitization. Nat. Commun. 1, 73 (2010).
    • (2010) Nat. Commun. , vol.1 , pp. 73
    • Moon, I.K.1    Lee, J.2    Ruoff, R.S.3    Lee, H.4
  • 36
    • 84884249007 scopus 로고    scopus 로고
    • Silver nanoparticle decorated reduced graphene oxide (rGO) nanosheet: A platform for SERS based low-level detection of uranyl ion
    • Dutta, S. et al. Silver Nanoparticle Decorated Reduced Graphene Oxide (rGO) Nanosheet: A Platform for SERS Based Low-Level Detection of Uranyl Ion. ACS Applied Materials & Interfaces 5, 8724-8732 (2013).
    • (2013) ACS Applied Materials & Interfaces , vol.5 , pp. 8724-8732
    • Dutta, S.1
  • 37
    • 0342624757 scopus 로고    scopus 로고
    • Contact angle measurement and contact angle interpretation
    • Kwok, D. Y. & Neumann, A. W. Contact Angle Measurement and Contact Angle Interpretation. Adv. Colloid Interface Sci. 81, 167-249 (1999).
    • (1999) Adv. Colloid Interface Sci. , vol.81 , pp. 167-249
    • Kwok, D.Y.1    Neumann, A.W.2
  • 38
    • 84897511983 scopus 로고    scopus 로고
    • Wetting of graphene oxide: A molecular dynamics study
    • Wei, N., Lv, C. & Xu, Z. Wetting of Graphene Oxide: A Molecular Dynamics Study. Langmuir 30, 3572-3578 (2014).
    • (2014) Langmuir , vol.30 , pp. 3572-3578
    • Wei, N.1    Lv, C.2    Xu, Z.3
  • 39
    • 34548659894 scopus 로고    scopus 로고
    • Water contact angle on polyelectrolyte-coated surfaces: Effects of film swelling and droplet evaporation
    • Hänni-Ciunel, K., Findenegg, G. H. & von Klitzing, R. Water Contact Angle On Polyelectrolyte-Coated Surfaces: Effects of Film Swelling and Droplet Evaporation. Soft Mater. 5, 61-73 (2007).
    • (2007) Soft Mater. , vol.5 , pp. 61-73
    • Hänni-Ciunel, K.1    Findenegg, G.H.2    Von Klitzing, R.3
  • 40
    • 1542316965 scopus 로고    scopus 로고
    • Characterisation of the solvent stability of polymeric nanofiltration membranes by measurement of contact angles and swelling
    • Geens, J., Van der Bruggen, B. & Vandecasteele, C. Characterisation of the Solvent Stability of Polymeric Nanofiltration Membranes by Measurement of Contact Angles and Swelling. Chem. Eng. Sci. 59, 1161-1164 (2004).
    • (2004) Chem. Eng. Sci. , vol.59 , pp. 1161-1164
    • Geens, J.1    Van Der-Bruggen, B.2    Vandecasteele, C.3
  • 41
    • 81855176051 scopus 로고    scopus 로고
    • Transparent carbon nanotube patterns templated by inkjet-printed graphene oxide nanosheets
    • Han, J. T. et al. Transparent Carbon Nanotube Patterns Templated by Inkjet-Printed Graphene Oxide Nanosheets. RSC Adv. 1, 44-47 (2011).
    • (2011) RSC Adv. , vol.1 , pp. 44-47
    • Han, J.T.1
  • 42
    • 84871131563 scopus 로고    scopus 로고
    • Impedance study of electrochemical stability limits for electrolytes
    • Chen, D. et al. Impedance Study of Electrochemical Stability Limits for Electrolytes. Int. J. Electrochem. Sci. 7, 12383-12390 (2012).
    • (2012) Int. J. Electrochem. Sci. , vol.7 , pp. 12383-12390
    • Chen, D.1
  • 43
    • 84878230270 scopus 로고    scopus 로고
    • Electrochemical stability of imidazolium based ionic liquids containing cyano groups in the anion: A cyclic voltammetry, XPS and DFT study
    • Weingarth, D. et al. Electrochemical Stability of Imidazolium Based Ionic Liquids Containing Cyano Groups in the Anion: A Cyclic Voltammetry, XPS and DFT study. J. Electrochem. Soc. 159, 611-615 (2012).
    • (2012) J. Electrochem. Soc. , vol.159 , pp. 611-615
    • Weingarth, D.1
  • 44
    • 77953579274 scopus 로고    scopus 로고
    • Comparative studies of the electrochemical behavior of silver electrode in chloride, bromide and iodide aqueous solutions
    • Ibrahim, H. H. H. M. A., Mohammed, S. S. A. E. R. & Amin, A. Comparative Studies of the Electrochemical Behavior of Silver Electrode in Chloride, Bromide and Iodide Aqueous Solutions. Int. J. Electrochem. Sci. 5, 278-294 (2010).
    • (2010) Int. J. Electrochem. Sci. , vol.5 , pp. 278-294
    • Ibrahim, H.H.H.M.A.1    Mohammed, S.S.A.E.R.2    Amin, A.3
  • 45
    • 85027923551 scopus 로고    scopus 로고
    • Stretchable thin-film electrodes for flexible electronics with high deformability and stretchability
    • Cheng, T., Zhang, Y., Lai, W. Y. & Huang, W. Stretchable Thin-Film Electrodes for Flexible Electronics with High Deformability and Stretchability. Adv. Mater. 27, 3349-3376 (2015).
    • (2015) Adv. Mater. , vol.27 , pp. 3349-3376
    • Cheng, T.1    Zhang, Y.2    Lai, W.Y.3    Huang, W.4
  • 46
    • 84900010174 scopus 로고    scopus 로고
    • Stretchable, wearable dye-sensitized solar cells
    • Yang, Z., Deng, J., Sun, X., Li, H. & Peng, H. Stretchable, Wearable Dye-Sensitized Solar Cells. Adv. Mater. 26, 2643-2647 (2014).
    • (2014) Adv. Mater. , vol.26 , pp. 2643-2647
    • Yang, Z.1    Deng, J.2    Sun, X.3    Li, H.4    Peng, H.5


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