Mr
Jungui Zhou
(Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China; LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Metal halide perovskite light-emitting diodes (PeLEDs) are regarded as alternative candidates for next-generation display technologies due to their high efficiency, superior color purity and tunable bandgap. However, PeLEDs based on isotropic perovskite emitting layers with randomly oriented emissive transition dipole moments (TDMs) remain to be inefficient to get upper limit efficiencies of planar PeLEDs. In general, horizontal emissive TDMs parallel to the device substrate are suitable for light out-coupling, while emitted light from vertical TDMs is mostly trapped in the device. Therefore, an emissive layer with high ratios of horizontal TDMs is expected to enhance the efficiency of PeLEDs. A high proportion of horizontal TDMs can be obtained by adjusting the thickness and crystal orientation of the perovskite film. Here, we mainly use grazing-incidence wide-angle X-ray scattering (GIWAXS) to study a series of additives, and explore the effect of additives on the crystal orientation of the two-dimensional perovskite films.
Mr
Jungui Zhou
(Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China; LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Mr
Lei Cai
(Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China)
Mr
Xiaohao Dong
(Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China)
Mr
Manuel A. Scheel
(LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Ms
Xinyu Jiang
(LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Dr
Yajuan Li
(Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China; LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Mr
Kun Sun
(LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Mr
Linus Huber
(LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Mr
Tianfu Guan
(LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany)
Dr
Matthias Schwartzkopf
(Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany)
Prof.
Stephan V. Roth
(Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany; Department of Fibre and Polymer Technology, KTH, Teknikringen 56-58, SE-100 44 Stockholm, Sweden)
Prof.
Man-Keung Fung
(Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China; Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Macau, China)
Prof.
Peter Müller-Buschbaum
(LS Funktionelle Materialien, Physik-Department, TU München, 85748 Garching, Germany; Heinz Maier-Leibniz Zentrum (MLZ), TU München, Lichtenbergstraße 1, 85748 Garching, Germany)
