Publication Type:

Conference Paper


2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT) (2016)



Accession Number:



1-octadecene, absorption, colloidal procedures, Colloidal synthesis, Colloids, crossover effect, current-voltage characteristics, dark J-V curve, Fluorine, forward bias, Gold, heterojunction quantum dot solar cells, Heterojunction solar cells, Heterojunctions, IV-VI semiconductors, lead, Lead compounds, monodisperse lead sulfide quantum dots, NIR region, oleic acid, oleylamine, Organic compounds, PbS, photoconductivity, photocurrent, photoemission, Photovoltaic applications, Photovoltaic cells, Photovoltaic systems, quantum dot, Quantum dots, roll-over effect, SnO:F-TiO2-PbS-Au, Solar cells, Tin Compounds, Titanium compounds


PbS Quantum dots are promising materials for photovoltaic applications due to their absorption in the NIR region. In this work monodisperse lead sulfide quantum dots are synthesized using colloidal procedures using oleic acid and oleylamine as the stabilizing agents and 1-octadecene as the non-coordinating solvent. Heterojunction solar cell with FTO/TiO2/PbS/Au structure is fabricated and characterized. The current-voltage characteristics shows the roll-over effect that refers to the saturation of photocurrent in forward bias and crossover effect which occurs when the light and dark J-V curves intersect.

Cite this Research Publication

N. Ajayakumar, Dr. Sreekala C. O., Tom, A. E., Thomas, A., and Ison, V. V., “Heterojunction TiO2/PbS quantum dot solar cells”, in 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), 2016.