Lead-free KNN-based thin films obtained by pulsed laser deposition

Brenda Carreño-Jiménez, Jose Luis Benitez-Benitez, Rosalba Castaneda-Guzman, M. Acuautla, Rigoberto Lopez-Juarez

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
130 Downloads (Pure)

Abstract

In this work, 0.96(K0.48Na0.52)0.95Li0.05Nb0.94Sb0.06O3−0.04Ba0.94Ca0.06ZrO3 (KNLNS-BCZ) and 0. 9S(K0.48Na0.52)0.95Li0.05Nb0.95Sb0.05O3−0.02Ba0.5(Bi0.5Na0.5)0.5ZrO3 (KNLNS-BBNZ) ferroelectric thin films were obtained by pulsed laser deposition. The structural, and morphological characteristics were studied to determine the best deposition parameters and analyse the piezoelectric properties. The studied deposition parameters were temperature, laser fluence, oxygen partial pressure and frequency. These parameters impact important characteristics of the thin films like grain morphology, thickness, and roughness. KNLNS-BCZ thin films with pure perovskite structure, homogeneous grain growth, and thickness ≥100 nm were fabricated at 700∘C,2J/cm2,300 mTorr, and frequencies of 5 Hz and 10 Hz. These films presented good ferroelectric behaviour and piezoelectric coefficient d 33eff of 83.80 pm/V and 25.80 pm/V, respectively.
Original languageEnglish
Title of host publication2022 IEEE International Symposium on Applications of Ferroelectrics, Piezoresponse Force Microscopy and European Conference on Applications of Polar Dielectrics, ISAF-PFM-ECAPD 2022
Place of PublicationTours, France
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781665448413
DOIs
Publication statusPublished - 2-Sept-2022
Event2022 IEEE International Symposium on Applications of Ferroelectrics, ISAF 2022 - Tours, France
Duration: 27-Jun-20221-Jul-2022

Conference

Conference2022 IEEE International Symposium on Applications of Ferroelectrics, ISAF 2022
Country/TerritoryFrance
CityTours
Period27/06/202201/07/2022

Keywords

  • and KNNbased.
  • Lead-free thin films
  • PLD method

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