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Hybrid materials with an increased resistance to hard X-rays using fullerenes as radical sponges

Pinna, Alessandra and Malfatti, Luca and Piccinini, Massimo and Falcaro, Paolo and Innocenzi, Plinio (2012) Hybrid materials with an increased resistance to hard X-rays using fullerenes as radical sponges. Journal of Synchrotron Radiation, Vol. 19 (4), p. 586-590. ISSN 0909-0495. eISSN 1600-5775. Article.

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DOI: 10.1107/S0909049512012848

Abstract

The protection of organic and hybrid organic–inorganic materials from X-ray damage is a fundamental technological issue for broadening the range of applications of these materials. In the present article it is shown that doping hybrid films with fullerenes C60 gives a significant reduction of damage upon exposure to hard X-rays generated by a synchrotron source. At low X-ray dose the fullerene molecules act as `radical scavengers', considerably reducing the degradation of organic species triggered by radical formation. At higher doses the gradual hydroxylation of the fullerenes converts C60 into fullerol and a bleaching of the radical sinking properties is observed.

Item Type:Article
ID Code:8121
Status:Published
Refereed:Yes
Uncontrolled Keywords:Hybrid materials, fullerene, X-ray damage, films, radical sponge
Subjects:Area 09 - Ingegneria industriale e dell'informazione > ING-IND/22 Scienza e tecnologia dei materiali
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > Porto Conte Ricerche, Alghero
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Architettura, Design e Urbanistica
001 Università di Sassari > 01 Dipartimenti > Architettura e pianificazione > LMNT-Laboratorio di Scienza dei Materiali e NanoTecnologie
Publisher:Blackwell / Wiley
ISSN:0909-0495
eISSN:1600-5775
Copyright Holders:© 2012 International Union of Crystallography
Deposited On:08 Nov 2012 12:40

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