Evidence map›Paper›PMID 41280808›Full record

ArticleACS omega2025

Cooling Rate Effects on Morphological, Optical, and Piezoelectric Properties of Melt-Recrystallized PVDF-TrFE Thin Films.

Milan Shrestha, Abhinay Sreeram, Syed Ikhwan Bin Syed Ismail Alsagoff, Michael Renaud, Maharaja Sankaralingam, Leonardus Depari, Zhi Kai Ng, Ranjana Shivakumar, Edwin Hang Tong Teo

Abstract read
In one paragraph

Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Milan ShresthaContinental-NTU Corporate Lab, Nanyang Technological University, Singapore 639798, Singapore.ORCID https://orcid.org/0000-0001-6450-699X
Abhinay SreeramContinental-NTU Corporate Lab, Nanyang Technological University, Singapore 639798, Singapore.
Syed Ikhwan Bin Syed Ismail AlsagoffContinental-NTU Corporate Lab, Nanyang Technological University, Singapore 639798, Singapore.
Michael RenaudContinental Automotive Singapore Pte Ltd, Singapore 339780, Singapore.
Maharaja SankaralingamContinental Automotive Singapore Pte Ltd, Singapore 339780, Singapore.
Leonardus DepariSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore.
Zhi Kai NgSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore.ORCID https://orcid.org/0000-0002-7740-8878
Ranjana ShivakumarSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore.
Edwin Hang Tong TeoSchool of Electrical and Electronic Engineering and School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.ORCID https://orcid.org/0000-0003-0528-1764

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polyvinylidene fluoride (PVDF) and its copolymers have recently garnered significant attention for their applications in sensors, actuators, and energy-harvesting devices due to their strong piezoelectric properties, flexibility, chemical resistance, ease of processing, and optical transparency. Consequently, PVDF and its copolymers are increasingly utilized as optical piezoelectric elements in consumer electronics, human-machine interfaces (HMI), and wearable sensors and actuators. Among these materials, the copolymer PVDF-TrFE (polyvinylidene fluoride-trifluoroethylene) is particularly notable for its superior piezoelectric properties, ferroelectric stability, and thermal stability. PVDF-TrFE thin films are predominantly produced through solution casting or doctor-blading methods, followed by annealing to enhance their piezoelectric properties. However, the impact of annealing that involves melt-recrystallization and cooling rates on the piezoelectric, optical, and mechanical properties remains inadequately understood. This study explores the doctor-blading process of PVDF-TrFE using a PVDF-TrFE, Dimethylformamide (DMF), and acetone-based solution, followed by annealing above its melting temperature and cooling at varying rates. PVDF-TrFE films annealed and cooled at slower rates (1-2 °C/min) demonstrated a higher β-phase content but exhibited haziness and poor optical transparency. In contrast, films rapidly cooled by immersion in water displayed a lower β-phase content but maintained high transparency. A comprehensive analysis of the surface properties of these films, coupled with a correlation of surface roughness with a light scattering model, indicated that the optical transparency of both films was predominantly influenced by large micrometer-scale surface roughness. These findings could provide valuable insights into developing surface treatment processes to optimize both optical and piezoelectric properties in PVDF-TrFE thin films.

Identifiers

PMID41280808
PMCPMC12631379

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.