Effect of In Situ Thermal Annealing on Structural, Optical, and Electrical Properties of CdS/CdTe Thin Film Solar Cells Fabricated by Pulsed Laser Deposition

Table 1

Performances of thin film CdS /CdTe solar cells treated with iTAP at 450°C for various durations. CdTe thickness of 0.75 μm, while all others have CdTe thickness of 1.3 μm.

iTAP temperature (°C)	iTAP time (min)	CdTe band gap (eV)	(mV)	(mA/cm^2)	FF (%)	Efficiency (%)
0	0	1.40	546	12.9	37	2.59
450	5	1.50	691	18.5	45.5	5.8
450	10	1.50	722	17.6	49.6	6.3
450	15	1.50	724	16.1	52.7	6.13
450	20	1.50	605	15.3	38.1	3.52
450	15	1.45	730	17.3	55.5	7