Size Effects of Silver Nanoparticles on the Photovoltaic Performance of a Dye Sensitized Solar Cells

Plasmon-Enhanced Efficiency in Dye Sensitized Solar Cells Decorated with Size-Controlled Silver Nanoparticles Based on Anthocyanins as Light Harvesting Pigment

“…The absorption peak of dye extract was observed around 550 nm (indicated in Fig. 2) which ascertains the presence of anthocyanin pigment and in agreement with onimisi et al [13] Figure 7 shows the photocurrent density-voltage (J -V) curves of the DSSCs with varying SILAR cycles 0, 1, and 2 cycles. Based on the curves in Fig.…”

Silver Nanoparticles as Artificial Antennas for Enhanced Light-Harvesting and Charge Transfer in Dye-Sensitized Solar Cells

“…This enhanced absorption and broadened spectrum absorption range of the photo anodes were mainly attributed to the SPR of AgNPs, which interacted with the dye, enhancing dye absorption that resulted in more charge carrier generation [30]. These features suggest that dye molecules in the vicinity of AgNPs can absorb more photons, presumably due to the intensified near-field effect of the surface plasmon and spectral overlap between the dye and surface plasmon, which may eventually lead to an increase in the number of charge carriers and J sc values [25]. Figure 8 shows the photocurrent density-voltage characteristics (J-V) curves of DSSCs with AgNPs, Ag@SiO 2 NPs and TiO 2 -only.…”

“…8, the open-circuit voltage (Voc) of plasmonenhanced DSSCs and TiO 2 -only DSSC are almost the same, while the short-circuit current density (Jsc) significantly increased by introducing Ag@SiO 2 NPs. The improvement of Jsc in the plasmon enhanced DSSCs was mainly caused by the increase of photocurrent due to the enhanced light absorption of dye with the help of localized surface plasmons (LSPs) [23][24][25][29][30][31].…”

“…Introduction of metallic nanoparticles (NPs) in suitable places to trap or confine light inside the active layer and enhance the absorption in the organic semiconductor film could provide superior performances [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. One of the important issues in plasmonic DSSCs is the stability of the NPs [31].…”

Chlorophyll and Betalain as Light-Harvesting Pigments for Nanostructured TiO<sub>2</sub> Based Dye-Sensitized Solar Cells

“…The use of natural dyes have been considered as potential alternatives to the expensive synthetic dyes in enhancing the light response of semiconductor in active layers of solar cells, and have been demonstrated on several solar-cell materials [11][12][13][14][15][16][17][18][19][20][21][22].…”