Included in the dataset are detailed information of optical simulation supporting the development of Tamm plasmon-driven halide perovskite LED and the angular characterisation of the experimental realisation. Dataset includes measurements from Bruker Dimension Icon AFM, Shimadzu UV-3600 Plus spectrophotometer, Agilent Cary7000 universal measurement spectrometer, Photon Etc. IMA hyperspectral microscope, Edinburgh Instrument FLS1000 photoluminescence spectrometer and several other in-house setups.

Abstract of associated publication:

Next-generation light-emitting applications such as displays and optical communications require judicious control over emitted light including intensity and angular dispersion. To date, this remains a challenge as conventional methods require cumbersome optics. Here, we report highly directional and enhanced electroluminescence from a solution-processed quasi-2-dimensional halide perovskite light-emitting diode by building a device architecture to exploit hybrid plasmonic-photonic Tamm plasmon modes. By exploiting the processing and bandgap tunability of the halide perovskite device layers, we construct the device stack to optimise both optical and charge-injection properties, leading to very narrow forward electroluminescence with angular full-width half-maximum of 36.6° compared with the conventional isotropic control device of 143.9°, and narrow electroluminescence spectral full-width half-maximum of 12.1 nm. The device design is versatile and tunable to work with emission lines covering the entire visible spectrum and directionality on demand, thus providing a promising route to modular, inexpensive, and directional operating light-emitting devices.