Title
The effect of isopropylamine-capped PbS quantum dots on infrared photodetectors and photovoltaics
Document Type
Article
Publication Date
11-5-2017
Abstract
In this paper, we explore the impact of isopropylamine (IPAM) as a short ligand on a solution-processed infrared photodetector and a photovoltaic device using lead sulfide (PbS) colloidal quantum dots. Original oleic acid capping is replaced by isopropylamine through a solution-phase ligand exchange process. Then a blend of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] or MEH-PPV and the isopropylamine-capped PbS colloidal quantum dots is prepared for a photosensitive layer sandwiched by two different electrodes. Results illustrate that contribution of isopropylamine can improve the responsivity of a photodetector and enhance the photovoltaic performance by increasing the open circuit voltage and short circuit current.
Publication Source (Journal or Book title)
Microelectronic Engineering
First Page
48
Last Page
51
Recommended Citation
Ghomian, T., Farimand, S., & Choi, J. (2017). The effect of isopropylamine-capped PbS quantum dots on infrared photodetectors and photovoltaics. Microelectronic Engineering, 183-184, 48-51. https://doi.org/10.1016/j.mee.2017.10.009