Enhancement of microwave absorption bandwidth of polymer blend using ferromagnetic gadolinium silicide nanoparticles

doi:10.1016/j.matlet.2019.04.013

Title: Enhancement of microwave absorption bandwidth of polymer blend using ferromagnetic gadolinium silicide nanoparticles

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Abstract

Ferromagnetic gadolinium silicide (Gd₅Si₄) nanoparticles significantly enhance the microwave absorption bandwidth of a polymer blend (PVB-PEDOT:PSS). These materials are essentially needed for various military and civilian applications such as X-band (8.2–12.4 GHz) and Ku-band (12.4–18 GHz) absorption. A single 1.2 mm thick layer of PVB-PEDOT:PSS-Gd₅Si₄ (PPGS) nanocomposite film demonstrates the most promising bandwidth (8.2–18 GHz) with a minimum reflection loss of -14 dB. Mechanistically, dielectric loss ($$\mathcal {tan}$$δ_e ≈2.4) and magnetic loss ($$\mathcal {tan}$$δ_m ≈1.1) contributes more efficiently, and standard microwave simulation confirms the stored energy is predominant in PPGS nanocomposite which enhances the bandwidth.

Authors:

Bora, Pritom J. ^[1]; Gupta, Shalabh ^[2]; Pecharsky, Vitalij K. ^[3]; Vinoy, K. J. ^[4]; Ramamurthy, Praveen C. ^[5]; Hadimani, Ravi L. ^[6]

Indian Inst. of Technology (IIT), Madras (India). Interdisciplinary Centre for Energy Research (ICER)
Ames Laboratory (AMES), Ames, IA (United States)
Ames Lab. and Iowa State Univ., Ames, IA (United States)
Indian Inst. of Technology (IIT), Madras (India). Dept. of Electrical and Communication Engineering
Indian Inst. of Technology (IIT), Madras (India). Interdisciplinary Centre for Energy Research (ICER); Indian Inst. of Technology (IIT), Madras (India). Dept. of Materials Engineering
Virginia Commonwealth Univ., Richmond, VA (United States); Iowa State Univ., Ames, IA (United States)

Publication Date:: 2019-04-13

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE

OSTI Identifier:: 1529366

Alternate Identifier(s):: OSTI ID: 1636212

Report Number(s):: IS-J-9660
Journal ID: ISSN 0167-577X

Grant/Contract Number:: AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Materials Letters

Additional Journal Information:: Journal Volume: 252; Journal Issue: C; Journal ID: ISSN 0167-577X

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Polymer nanocomposites; Dielectrics; Reflection loss (RL); RL bandwidth

Citation Formats


                    Bora, Pritom J., Gupta, Shalabh, Pecharsky, Vitalij K., Vinoy, K. J., Ramamurthy, Praveen C., and Hadimani, Ravi L. Enhancement of microwave absorption bandwidth of polymer blend using ferromagnetic gadolinium silicide nanoparticles.  United States: N. p., 2019. 
        Web.  doi:10.1016/j.matlet.2019.04.013.

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                    Bora, Pritom J., Gupta, Shalabh, Pecharsky, Vitalij K., Vinoy, K. J., Ramamurthy, Praveen C., & Hadimani, Ravi L. Enhancement of microwave absorption bandwidth of polymer blend using ferromagnetic gadolinium silicide nanoparticles.  United States.  doi:10.1016/j.matlet.2019.04.013.

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                    Bora, Pritom J., Gupta, Shalabh, Pecharsky, Vitalij K., Vinoy, K. J., Ramamurthy, Praveen C., and Hadimani, Ravi L. Sat .  
        "Enhancement of microwave absorption bandwidth of polymer blend using ferromagnetic gadolinium silicide nanoparticles".  United States.  doi:10.1016/j.matlet.2019.04.013.  https://www.osti.gov/servlets/purl/1529366.

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@article{osti_1529366,

  title        = {Enhancement of microwave absorption bandwidth of polymer blend using ferromagnetic gadolinium silicide nanoparticles},

  author       = {Bora, Pritom J. and Gupta, Shalabh and Pecharsky, Vitalij K. and Vinoy, K. J. and Ramamurthy, Praveen C. and Hadimani, Ravi L.},

  abstractNote = {Ferromagnetic gadolinium silicide (Gd5Si4) nanoparticles significantly enhance the microwave absorption bandwidth of a polymer blend (PVB-PEDOT:PSS). These materials are essentially needed for various military and civilian applications such as X-band (8.2–12.4 GHz) and Ku-band (12.4–18 GHz) absorption. A single 1.2 mm thick layer of PVB-PEDOT:PSS-Gd5Si4 (PPGS) nanocomposite film demonstrates the most promising bandwidth (8.2–18 GHz) with a minimum reflection loss of -14 dB. Mechanistically, dielectric loss ($\mathcal {tan}$δe ≈2.4) and magnetic loss ($\mathcal {tan}$δm ≈1.1) contributes more efficiently, and standard microwave simulation confirms the stored energy is predominant in PPGS nanocomposite which enhances the bandwidth.},

  doi          = {10.1016/j.matlet.2019.04.013},

  journal      = {Materials Letters},

  number       = C,

  volume       = 252,

  place        = {United States},

  year         = {2019},

  month        = {4}

}

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DOI: 10.1016/j.matlet.2019.04.013

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