Turning light: A crystalline fullerene material based on H-bonding interactions exhibits highly polarized fluorescence emission, whose angle of polarization can be turned using light (see picture). This process can be used to write optical information onto the material, which can be read through the polarization component of the luminescence emitted by the material. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Debdas Ray

Chemistry

(SoNS) School of Natural Sciences

G. Raffy

C.-C. Chu

A. Del Guerzo

D.M. Bassani

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Shiv Nadar University

Angewandte Chemie - International Edition

Controlling the emission polarization from single crystals using light: Towards photopolic materials