New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH
2
)
3
)(CH
3
NH
3
)
n
Pb
n
I
3
n
+1
: Structure, Properties, and Photovoltaic Performance
New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH
2
)
3
)(CH
3
NH
3
)
n
Pb
n
I
3
n
+1
: Structure, Properties, and Photovoltaic Performance
