TY - JOUR T1 - Efficient energy transfer from blue to red in tetraphenylporphyrin-doped poly(9,9-dioctylfluorene) light-emitting diodes JO - ADV MATER PY - 2000/01/07 AU - Virgili T AU - Lidzey DG AU - Bradley DDC ED - VL - 12 IS - 1 SP - 58 EP - + Y2 - 2024/09/19 ER -