The purpose of this study was to investigate the effect of substrate characteristics on the performance of quantum-dot light-emitting diodes (QLEDs) with the aim of developing high-performance flexible QLEDs. Specifically. we compared QLEDs made with a flexible polyethylene naphthalate (PEN) substrate to those made with a rigid glass substrate. using the same materials and structure e... https://www.chiggate.com/mitski-be-the-cowboy-lp-coke-bottle-clear-on-sale/