Focus of the figure: Modern Solid‐State Lighting (SSL) and colour display systems rely on phosphor materials and specifically RE ion doped phosphors. This study report on the optimization in the preparation of Zn 4 B 6 O 13 : Sm 3+ (1 mol%) phosphor material by varied methods for orange‐red LED applications. More information about this picture will be discussed by Dr. Balakrishna Avula and his co‐workers on page 433–446 in this issue. image
A Sun, study studied this question.