EFFECT OF DURATION OF ZnO PROTOTOTYPE DYE SENSITIZED SOLAR CELL LAYERS OF FAMBIR (UNCARIA) FRUIT EXTRACT AS A PHOTOSENSITIZER. einstein e-j. [Internet]. 2026 Jun. 18 [cited 2026 Aug. 22];14(2):29-34. Available from: https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/57819