Efficient and Spectrally Stable Blue Perovskite Light‐Emitting Diodes Employing a Cationic π‐Conjugated Polymer

• Published in: Advanced materials (Weinheim) Vol. 33; no. 45; pp. e2103640 - n/a
• Main Authors: Yuan, Shuai, Cui, Lin‐Song, Dai, Linjie, Liu, Yun, Liu, Qing‐Wei, Sun, Yu‐Qi, Auras, Florian, Anaya, Miguel, Zheng, Xiaopeng, Ruggeri, Edoardo, Yu, You‐Jun, Qu, Yang‐Kun, Abdi‐Jalebi, Mojtaba, Bakr, Osman M., Wang, Zhao‐Kui, Stranks, Samuel D., Greenham, Neil C., Liao, Liang‐Sheng, Friend, Richard H.
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.11.2021; John Wiley and Sons Inc
• Subjects: blue emissions; Cationic polymerization; Electroluminescence; high efficiencies; ion migrations; Light emitting diodes; Materials science; Metal halides; Optoelectronics; perovskite light‐emitting diodes; Perovskites; Polymers; Spectra; Spectral emittance; stabilities; Stability; perovskite light-emitting diodes; stabilities; blue emissions; high efficiencies; ion migrations

Metal halide perovskite semiconductors have demonstrated remarkable potentials in solution‐processed blue light‐emitting diodes (LEDs). However, the unsatisfied efficiency and spectral stability responsible for trap‐mediated non‐radiative losses and halide phase segregation remain the primary unsolv...