I'm a PhD student in polymer physics particularly on photophysics of conjugated polymers. While reviewing literature I come across an article by Shu Hu and coworkers on 'Effect of Thermal Annealing on Conformation of MEH-PPV Chains in Polymer Matrix: Coexistence of H- and J-Aggregates' in which they assign the emission peak (I00) of H-type aggregates at lower energy than J-type aggregate when they coexist, which, I think, contradicts Kasha theory.

Some body help me explain this.