Charge Transport Characterization of PbS Quantum Dot Solids for High Efficiency Solar Cells

다국어 초록 (Multilingual Abstract)

The PbS quantum dot is an emerging photovoltaic material, which may provide high efficiencybreakthroughs. The most crucial element for the high efficiency solar cells’s development is to understandcharge transport characteristics of PbS quantum dot solids, which are also important in planning strategicresearch. We have investigated charge transport characteristics of PbS quantum dot solids thin films usingspace charge limited conduction analysis and assessed thickness dependent photovoltaic performances. Theextracted carrier drift mobility was low-10-2 cm2/Vs with the estimated diffusion length about 50 nm. Theseand recently reported values were compared with those from a commercial photovoltaic material, and wepresent an essential element in further development of PbS quantum dot solids materials

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