Incorporation of silver and gold nanostructures for performance improvement in P3HT: PCBM inverted solar cell with rGO/ZnO nanocomposite as an electron transport layer

The effect of a trimetallic nanocomposite in the solar absorber layer of organic solar cells

“…27 The enhanced absorption in the near infrared region might also be caused by the inelastic scattering of the electromagnetic radiation (EM) inside the photoactive medium that assisted the increased optical path length in the polymer matrix. [20][21][22][23][24][28][29][30][31] According to the Doppler shi effect, the red shied absorption peak of the doped device conrms the scattering effect of the synthesized silver-based nanoparticles incorporated in the photoactive medium.…”

“…Several investigations have clearly demonstrated the effects of uni-and bi-metallic nanocomposites on the optical absorption, exciton dissociation and charge transport processes in thin lm organic solar cells (TFOSCs). [20][21][22] However, there are no reports to date, to the knowledge of the authors, about the use of trimetallic nanocomposites in the preparation of photonic devices. Metal nanocomposites were incorporated and tested in the various functional layers of TFOSCs to achieve the optimum conditions for high device performance.…”

Enhanced Photocatalytic Degradation of 2-Butanone Using Hybrid Nanostructures of Gallium Oxide and Reduced Graphene Oxide Under Ultraviolet-C Irradiation

“…A broad emission band ranging from 300 to 500 nm was observed in the Ga 2 O 3 spectrum, while considerable PL quenching was observed in the hybrids with higher ratios of rGO over Ga 2 O 3 . The decreased intensity of the PL emission might have been due to the reduction in the recombination process of electrons and holes because of the charge carrier transfer from the excited Ga 2 O 3 to the rGO [23,39,40]. To further discuss the charge carrier transfer from the excited Ga 2 O 3 to the rGO, the PL decay characteristics of the Ga 2 O 3 and hybrids were investigated, as shown in the inset of Figure 3b.…”

Efficient light trapping and interface engineering for performance enhancement in PTB7-Th: PC70BM organic solar cells

“…Some of the approaches of device engineering involve use of different combinations of electron and/or hole transport layers, solvent additives, incorporation of metal, dielectric and/or semiconducting nanoparticles (NPs), etc. [17][18][19][20][21][22] These modifications have been proved beneficial to enhance the device performance. However, this increase in PCE is limited due to various factors such as poor quality of interface between ETL/HTL and active layer, alteration in the active layer morphology due to incorporation of metal, dielectric and/or semiconducting nanoparticles (NPs).…”

“…[26,27] In particular, when metal NPs are introduced in active layer, they can additionally offer local surface plasmon resonance, therefore, when an incident light with a similar mode of frequency interacts with the NPs, its energy can be stored in the oscillation mode of the NPs resulting in more absorption and/or scattering. [18] However, most of these NPs are generally synthesized using the chemical routes and have lot of surface defects which acts as a trap centres. Further, if their concentration is increased beyond the optimized concentration, they will occupy more volume fraction of active layer and therefore the probability of scattered photon getting absorbed again gets decreased.…”