Flexible Solar Cells : fabrication and charge conduction analysis
Vishal Sharma(1,2), Vinamrita Singh(1), Swati Arora(3) and R. P. Tandon(1)
1 - Department of Physics & Astrophysics, University of Delhi, Delhi-110007, India
2 - Department of Electronics, Govt. degree College Udhampur, J&K, India.
3 - Cluster Innovation Center, University of Delhi, Delhi-110007, India.
In this study, we have fabricated flexible organic solar cells (OSC) composed of blended films of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C ITO coated PET flexible substrate. In BHJ organic solar cells, the donor (P3HT) and acceptor (PC large interfacial area for efficient exciton dissociation, which leads to high quantum efficiency of these solar cells. The current density-voltage (J-V) (Fig.3) characteristics are measured which gives the values of short circuit current density (Jsc), open circuit voltage (Voc), series resistance (R ), shunt resistance (R ), fill factor (FF) and efficiency (η). To understand the charge transport behavior, theoretical analysis of J-V characteristics was performed which shows that the thickness of interfacial layer (δ) plays an important role in the current conduction phenomenon in flexible solar cells.