Unraveling the Origin of High-Efficiency Photoluminescence in Mixed-Stack Isostructural Crystals of Organic Charge-Transfer Complex: Fine-Tuning of Isometric Donor-Acceptor Pairs

Sangyoon Oh, Sang Kyu Park, Byung Hak Jhun, Juan Carlos Roldao, Jin Hong Kim, Min Woo Choi, Chi Hyun Ryoo, Seyoung Jung, Nicola Demitri, Roland Fischer, Illia E. Serdiuk, Roland Resel, Johannes Gierschner, Soo Young Park^*