Study on the Stability of Unpackaged CdS/CdTe Solar Cells with Different Structures

Table 1

Dark and parameters of samples before and after thermal cycling.

Sample	Experimental condition		(mA/cm^2)	(μ)	(10^14 cm^-3)	(V)
1	Initial	2.10		0.65	1.36	0.65
	After 25 temperature cycles	2.34		0.70	1.29	0.60
	After 50 temperature cycles	3.01		0.83	1.22	0.66
	After 100 temperature cycles	5.76		0.88	1.28	0.66
2	Initial	1.98		0.55	1.30	0.60
	After 25 temperature cycles	2.20		0.80	1.24	0.74
	After 50 temperature cycles	2.22		0.68	1.14	0.59
	After 100 temperature cycles	2.20		0.77	1.24	0.68
3	Initial	2.12		0.57	1.37	0.56
	After 25 temperature cycles	2.10		0.52	1.32	0.52
	After 50 temperature cycles	2.14		0.59	1.24	0.51
	After 100 temperature cycles	2.36		0.59	1.27	0.53