Photovoltaic studies of PbSe quantum dot based solar cells

The PbSe quantum dots are synthesized by organometallic synthesis method. The current-voltage (J-V) characteristics of TiO
₂
/PbSe quantum dot (QD) solar cells from a Schottky junction that forms at the back metal electrode opposing the desirable diode formed between the TiO
₂
and PbSe QD layers. We study the J-V curves of the FTO/TiO
₂
/PbSe/Au device under dark and illuminated condition. The FESEM image of the device cross section is taken and analyzed. We also study the band structure of the device.