Mixed Spacer Cation Stabilization of Blue‐Emitting n = 2 Ruddlesden–Popper Organic–Inorganic Halide Perovskite Films

• Published in: Advanced optical materials Vol. 8; no. 4
• Main Authors: Leung, Tik Lun, Tam, Ho Won, Liu, Fangzhou, Lin, Jingyang, Ng, Alan Man Ching, Chan, Wai Kin, Chen, Wei, He, Zhubing, Lončarić, Ivor, Grisanti, Luca, Ma, Chao, Wong, Kam Sing, Lau, Ying Suet, Zhu, Furong, Skoko, Željko, Popović, Jasminka, Djurišić, Aleksandra B.
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.02.2020
• Subjects: blue emission; Cations; Emissions control; Free energy; Heat of formation; High temperature; Light emission; Materials science; Optics; Organic light emitting diodes; perovskite light‐emitting diodes; Perovskites; quasi‐2D perovskites; Ruddlesden–Popper; Stability; Stabilization

Ruddlesden–Popper halide perovskite (RPP) materials are of significant interest for light‐emitting devices since their emission wavelength can be controlled by tuning the number of layers n, resulting in improved spectral stability compared to mixed halide devices. However, RPP films typically conta...