Nature CommunicationsB–N–B Embedded multiple-resonance polyaromatic enabling efficient narrowband electroluminescenceJianping ZhouGuoyun MengHai ZhangChenglong LiQian WangDawei ZhangLian DuanDongdong Zhang2026-03-24Full textDOI https://doi.org/10.1038/s41467-026-70915-0