Research / 2020 / Article / Fig 2

Research Article

Halide Homogenization for High-Performance Blue Perovskite Electroluminescence

Figure 2

SEM and cathodoluminescence characteristics of perovskite films with various additives. The scale bar represents 500 nm. (a–d) SEM image, live SE image and corresponding CL intensity, CL peak, and CL FWHM maps of perovskite films without additive (a), with Tween (b), with TPPB (c), and with Tween and TPPB (d).