diffraction (IMAGE) Kazan Federal University Caption X-ray diffraction patterns of the Pr3+:LaF3 (CPr?=?1%) nanoplates and nanospheres indicate that the studied samples are hexagonal structured crystals (JCPDS-32-0483, space group P3c1, No. 165). The inset additionally demonstrates peak broadening related to size effect Credit Kazan Federal University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.