Numerical study of electrical behavior of P3HT/PCBM bulk heterojunction solar cell

A common optical approach to thickness optimization in polymer and perovskite solar cells

“…Influence of the P3HT-PC 71 BM and of other BHJ PAL thickness on the PCE of devices with a conventional PEDOT-PSS HTL was experimentally studied elsewhere 1,2,[21][22][23][24][25][26][27] . The widespread use of PEDOT-PSS can be explained by its low-temperature solution processability, sufficiently high hole mobility from the conjugated structure, mechanical flexibility, and the ability to form thin films with improved film forming compared to small-molecule hole transport materials 28 .…”

A Common Optical Approach to Thickness Optimization in Polymer and Perovskite Solar Cells 

“…Influence of the P3HT-PC71BM and of other BHJ PAL thickness on the PCE of devices with a conventional PEDOT-PSS HTL was experimentally studied elsewhere [1,2,[19][20][21][22][23][24][25]. The polyaniline complex with a polyacid (PANI-PAMPSA) used here as an HTL already demonstrated some advantages over PEDOT-PSS, like the absence of an heterophase formation in dispersion during storage and the hygroscopicity of the layer, a resonable electrical conductivity [26,27], and the stability of electrical and optical properties for at least 2 years [28].…”

“…Moreover, while increasing the layer thickness would result in enhanced light harvesting, it also restricts charge extraction to the electrodes owing to the limited diffusion length of charge carriers which induces recombination losses [2,21,22,30]. Therefore, with PAL thicknesses larger than 100 nm, most generated charge carriers recombine before reaching the electrode [2].…”

Effect of Thickness and Composition Ratio of Poly(3-Hexylthiophene) and [6,6]-Phenyl C60-Butyric Acid Methyl Ester Thin Film on Optical Absorption for Organic Solar Cell Fabrication

“…Third generation solar cells, instead of expensive semiconductors, usually employ solution-processed materials such as polymers, nanoparticles and additives which make them easier to manufacture using cheap methods and processes [3]. In the field of polymer-based photovoltaic cells, blend of poly(3hexylthiophene) (P3HT), a polymer, and [6,6]-phenyl C61butyric acid methyl ester (PCBM), a fullerene derivate based donor-acceptor copolymer, is one of the most-studied active materials organic solar cell materials for photon-electron conversion [4][5][6][7][8][9][10][11][12][13][14][15] Organic polymers such as P3HT:PCBM blends have wider band gaps than natural semiconductors [16][17]. This paper studied the effects of composition ratios of P3HT:PC 61 BM on photo-absorption optical properties under various thicknesses in ambient conditions for photoactive layer device.…”