Series resistance is determined by contacts and bulk resistances
whereas shunt resistance by defects and traps in a solar cell. From
Experiments
3.1. LED solar simulator
Four color LED are used, namely, red-R at 632 nm
(LTL2F3VEKNT), green-G at 525 nm, TOL-50bUGdCTa-M4), blue-B
at 468 nm (TOL-50aUBdCEa-ETB6) and white-W (LTW-2S3D7. Five