Alkali ratio control for lead-free piezoelectric thin films utilizing elemental diffusivities in RF plasma

H Nili, AE Kandjani, J Du Plessis, V Bansal… - …, 2013 - pubs.rsc.org
High performance piezoelectric thin films are generally lead-based, and find applications in
sensing, actuation and transduction in the realms of biology, nanometrology, acoustics and …

Nanoscale characterization of energy generation from piezoelectric thin films

M Bhaskaran, S Sriram, S Ruffell… - Advanced Functional …, 2011 - Wiley Online Library
We report on the use of nanoindentation to characterize in situ the voltage and current
generation of piezoelectric thin films. This work presents the controlled observation of …

Correlation between nanomechanical and piezoelectric properties of thin films: An experimental and finite element study

H Nili, G Cheng, TA Venkatesh, S Sriram, M Bhaskaran - Materials Letters, 2013 - Elsevier
Piezoelectric materials perform mechanical-to-electrical energy conversion and have unique
and enhanced properties, particularly in the thin film form. In this work, the nanomechanical …

Key issues and challenges in device level fabrication of MEMS acoustic sensors using piezo thin films doped with strontium and lanthanum

M Kathiresan, C Manikandan, S Premkumar… - Journal of Materials …, 2022 - Springer
The development of next-generation piezoelectric micro-electro-mechanical systems (piezo-
MEMS) demands reliable and reproducible processes to fulfil the ever-growing …

Surface morphology induced localized electric field and piezoresponse enhancement in nanostructured thin films

S Sriram, M Bhaskaran, R Ahluwalia, TG Nguyen… - Acs Nano, 2011 - ACS Publications
Nanostructured piezoelectric and ferroelectric thin films are being increasingly used in
sensing and actuating microdevices. In this work, we report the experimental discovery of …

Low-temperature deposition of high-response piezoelectric thin films

S Sriram, M Bhaskaran, A Mitchell - Scripta Materialia, 2010 - Elsevier
Strontium-do** of the popular lead zirconate titanate results in improved piezoelectric
response characteristics. The synthesis of these thin films at a low temperature of 300° C on …

Lattice guiding for low temperature crystallization of rhombohedral perovskite-structured oxide thin films

S Sriram, M Bhaskaran, DRG Mitchell… - Crystal growth & …, 2010 - ACS Publications
Low temperature crystallization of complex oxide thin films has proved to be a challenge
with deposition of such materials often carried out at elevated temperatures in excess of …

Nanocolumnar preferentially oriented PSZT thin films deposited on thermally grown silicon dioxide

S Sriram, M Bhaskaran, A Mitchell, DRG Mitchell… - Nanoscale research …, 2009 - Springer
We report the first instance of deposition of preferentially oriented, nanocrystalline, and
nanocolumnar strontium-doped lead zirconate titanate (PSZT) ferroelectric thin films directly …

Piezoelectric thin film deposition: novel self-assembled island structures and low temperature processes on silicon

S Sriram, M Bhaskaran, A Mitchell - ES Gómez, Rijeka (Croatia) …, 2010 - books.google.com
Lead zirconate titanate Pb (Zr 1-y Tiy) O3 is a material that is known for its high piezoelectric
and ferroelectric properties. Thick and thin films of lead zirconate titanate (PZT) have been …

Synthesis of self-assembled island-structured complex oxide dielectric films

S Sriram, M Bhaskaran, G Kostovski… - The Journal of …, 2009 - ACS Publications
A self-assembly driven process to synthesize island-structured dielectric films is presented.
An intermetallic reaction in platinized silicon substrates provides preferential growth sites for …