Photoconductivity and electroluminescence in lead iodide based natural quantum well structures
X Hong, T Ishihara, AV Nurmikko - Solid state communications, 1992 - Elsevier
For the natural quantum well structures of (C 6 H 5-C 2 H 4 NH 3) 2-PbI 4 and (C 6 H 5-C 2
H 4 NH 3) 2 (CH 3 NH 3)-Pb 2 I 7, step-like features in the absorption and photo-current
spectra were identified as 2D band edge transitions from their temperature dependence.
Photocurrent along the c-axis is much smaller than that along the well plane, revealing the
large anisotropy of the electronic band structure, and shows a plateau in the current-voltage
curve, which can be explained in terms of Wannier-Stark localization in the materials …
H 4 NH 3) 2 (CH 3 NH 3)-Pb 2 I 7, step-like features in the absorption and photo-current
spectra were identified as 2D band edge transitions from their temperature dependence.
Photocurrent along the c-axis is much smaller than that along the well plane, revealing the
large anisotropy of the electronic band structure, and shows a plateau in the current-voltage
curve, which can be explained in terms of Wannier-Stark localization in the materials …
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