Versatile surface plasmon resonance of carbon-dot-supported silver nanoparticles in polymer optoelectronic devices

Copper nanoparticle incorporated plasmonic organic bulk-heterojunction solar cells

“…Similar to P3HT-based devices, the median PCE for the PTB7/PC 70 BM devices was improved from 6.79% to 7.43%, corresponding to the 9.4% improvement in PCE. This improvement is comparable to that (8.9%-10.4%) observed in a PTB7-based device using plasmonic Ag NPs, 13,14 but was achieved at a much lower cost. The J sc improved by 6.9%, as shown in Fig.…”

“…Though some studies have reported improvements in FF, 10,11,15 others have not. 13,14 These phenomena depends significantly on the morphology change in the PEDOT:PSS layers. 8,9 In our case, the morphology of PEDOT:PSS layer was only slightly affected by the embedded Cu NPs (see Figs.…”

“…The increase in IPCE and light absorption are typical characteristics of the LSPR effects of metal nanostructures, such as Au and Ag NPs, in organic solar cells. [8][9][10][11][12][13][14] Since J sc is calculated directly by integration of the IPCE over the wavelength spectrum, [8][9][10][11][12][13][14] the increases in J sc in Cu-NP-added samples can be explained by the LSPR effects, which increased the IPCEs of the devices. We calculated the maximum exciton generation rates (G max ) of the control and Cu-NP-added devices, according to the method reported in previous studies.…”

Characterization and Analytical Separation of Fluorescent Carbon Nanodots

“…Yang et al succeeded in using C-dots for the in vivo studies of optical imaging with mice for animal test. Followed by these, as a result of extensive and multidisciplinary efforts, C-dots have found their place in a wide range of applications in nanoprobes [56][57][58][59][60][61][62][63][64][65][66], drug delivery [67][68][69][70][71], therapy [72][73][74][75][76], and optoelectronic devices [77][78][79][80][81][82].…”

A Two‐Resonance Tapping Cavity for an Optimal Light Trapping in Thin‐Film Solar Cells

“…[5][6][7][8] Over decades of thin film technology, many different physical phenomena have been considered and partial success has been reached when a certain degree of light trapping has been demonstrated. [9][10] Solar cells incorporating hexagonal arrays of nano-columns [11][12] or nano-hole [13] embossed in the active layer, nanoimprinted electrode capable of both diffracting light and collecting the photo-generated carriers, [14][15] textured electrodes in a periodic grating [16][17] or in a random configuration, [18] 1-D photonic crystals or Bragg reflectors for semi-transparent cells, [19][20][21][22][23][24] nanospheres to couple light in the whispering gallery, [25][26][27] metallic nanoparticles to increase light absorption as well as exciton dissociation, [28][29][30] nanocubes [31] or oligomers, [32][33] exhibited an improvement relative to a given reference cell. However, light trapping or confinement has never been shown to be critical to achieve record performing thin film cells.…”