Hybrid Perovskite, CH₃NH₃PbI₃, for Solar Applications: An Experimental and Theoretical Analysis of Substitution in A and B Sites

Table 1

Weight and atomic percentage values for the elements in the samples prepared, obtained by means of XRF and CHNS technique.

⁢Sample,
Wt% C	1.95	1.42	1.01	0.55	—
Wt% H	0.97	0.90	0.83	0.78	0.69
Wt% N	2.29	2.26	2.25	2.31	2.35
Wt% I	61.41	61.81	62.12	62.42	62.78
Wt% Pb	33.38	33.61	33.79	33.94	34.18
At% C	8.4	6.5	4.9	2.8	—
At% H	49.9	49.2	48.0	47.4	45.5
At% N	8.4	8.8	9.3	10.0	11.1
At% I	25.0	26.6	28.3	29.9	32.6
At% Pb	8.3	8.9	9.4	9.9	10.9
	0.00	0.27	0.48	0.72	1.00