Analisis Pengaruh Ukuran dan Ketebalan Katoda Terhadap Unjuk Kerja serta Observasi Penyebab Degradasi Organic Light Emitting Diode (OLED) yang Difabrikasi dengan Metode Laminasi = Analysis of the Effect of Size and Cathode Thickness to the Performance and Degradation Cause Observation of Organic Light Emitting Diode (OLED) Fabricated using the Lamination Method