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Structure of phase-separated ferroelectric/ semiconducting polymer blends for organic non-volatile memories

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Author: Mcneill, C.R. · Asadi, K. · Watts, B. · Blom, P.W.M. · Leeuw, D.M. de
Type:article
Date:2010
Institution: TNO Industrie en Techniek
Source:Small, 4, 6, 508-512
Identifier: 461598
Keywords: Non-volatile memories · Organic electronics · Polymer blends · Semiconductors · Columnar morphology · Data storage · Ferroelectric polymers · Phase-separated structures · Soft x-ray spectromicroscopy · Fluorinated hydrocarbon · Iron derivative · Organic compound · Poly(3 hexylthiophene) · Poly(vinylidenefluoride trifluoroethylene) · Thiophene derivative · Vinyl derivative · Atomic force microscopy · Volatilization · Electricity · Hydrocarbons, Fluorinated · Iron Compounds · Microscopy, Atomic Force · Organic Chemicals · Thiophenes · Vinyl Compounds · Volatilization · X-Ray Absorption Spectroscopy

Abstract

The phase-separated structure of blends of the ferroelectric polymer P(VDF-TrFE) and the semiconducting polymer P3HT used in organic non-volatile memories is revealed with soft X-ray spectromicroscopy. These thin-film blends show a columnar morphology, with P3HT-rich columns enclosed in a continuous, essentially pure P(VDF-TrFE) phase favorable for data storage operation.