Abstract
Polymer semiconductors may have the potential to fully replace silicon in next-generation solar cells because of their advantages such as cheap cost, lightweight, flexibility, and the ability to be processed for very large area applications. Despite these advantages, polymer solar cells are still facing a certain lack of power-conversion efficiency (PCE), which is essentially required for commercialization. Recently, bulk heterojunction of PTB7:PC70BM as an active layer showed remarkable performance for polymer solar cells in terms of PCE. Thus, in this paper, we developed and optimized a novel design using PEDOT:PSS and PFN-Br as electron and hole transport layers (ETL and HTL) for ITO/PEDOT:PSS/PT7B:PC70BM/PFN-Br/Ag as a polymer solar cell, with the help of simulation. The optimized solar cell has a short-circuit current (Isc) of 16.434 mA.cm−2, an open-circuit voltage (Voc) of 0.731 volts, and a fill-factor of 68.055%, resulting in a maximum PCE of slightly above 8%. The findings of this work may contribute to the advancement of efficient bulk-heterojunction-based polymer solar cells.
Highlights
Organic semiconductor-based solar cells have gained considerable popularity over the last few years, and some scientists believe they have the potential to completely replace silicon-based solar cells in the near future [1,2,3,4,5]
Researchers are exploiting a variety of techniques to enhance the power-conversion efficiency (PCE) of organic solar cells
Shallow Doping Density Optimization of PEDOT:PSS. Another significant parameter to consider when optimizing a solar cell for efficiency is the doping density for PEDOT:PSS as the HTL
Summary
Organic semiconductor-based solar cells have gained considerable popularity over the last few years, and some scientists believe they have the potential to completely replace silicon-based solar cells in the near future [1,2,3,4,5]. Is accepted as one ofbe thefound best polymers for hole transport materials and esbulk-heterojunction polymer can in the reference pecially inverted polymerlayer, solar poly(3,4-ethenedioxythiophene):poly(styrenesulfonate) cells It has many advantages such as lightweight, high. PEDOT:PSS especially for inverted polymer solar cells It has many advantages such as lightweight, high offers not onlylow a well-coordinated work function for at HOMO C60 butyric methyl ester the electron-transport has very high electron-affinity whichacid helps to extract is another common material for inverted (p-i-n) polymer solar cells. It facilitates the electron efficiently [21].
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