The photovoltaic performance of CdS quantum dots sensitized solar cell using graphene/TiO2 working electrode

The effect of iron oxide content on the structural and optical parameters of polyvinyl alcohol/graphene nanocomposite films

“…Graphene as a two‐dimension material is favorable because of its lightweight, hardness, nontoxicity, and environmentally friendly. [ 25–28 ] Yalagala et al [ 29 ] utilized G to be blended with polyvinyl pyrrolidone (PVP) to serve as a host matrix for MgO nanoparticles (NPs) as memristors' application. Multi‐walled carbon nanotubes were used as a filler of PVP/PVA polymeric blend in optoelectronic applications.…”

Nanocrystals as performance-boosting materials for solar cells

“…[121][122][123] Meanwhile, TiO 2 NCs have been widely applied in n-i-p solar cells using chalcogenide NC as light harvesters, such as CdSe, CdS, and PbS. [124][125][126][127][128][129][130] Similarly, ZnO NCs were used as ETL for n-i-p PbS- Review Nanoscale Advances based NC-LHSCs, 30,32,35,39,40,44,45,58,[131][132][133][134][135][136][137][138][139][140][141][142][143][144][145] PSCs, 146 and OSCs. [147][148][149] SnO NCs as ETL for DSSCs, [150][151][152][153][154][155][156] for OSCs, [157][158][159] and for PSCs, 173 NCs have been used as IFL for NC-LHSCs,…”

“…11,14,15,17–22 Additionally, perovskite NCs are also good alternatives for light harvesting in solar cells. 12–14,16,23–28 Besides active layers (light harvesting layers), functional layers based on NCs, mainly including hole transport layers (HTLs), 29–99 electron transport layers (ETLs) 100–173 and interfacial functional layers (IFLs), 174–221 are of great importance in solar cells. Notably, NC additives also boost the performance of solar cells through defect passivation, plasmonic effect, solar concentration, light up-conversion and down-conversion/shifting, light scattering and reflection, and heat sinks.…”

Enhancing Hematite Photoanode Activity for Water Oxidation by Incorporation of Reduced Graphene Oxide

“…For hematite a = 810 4 cm À1 at 550 nm, the photoelectrodes must then be 0.4 mmi no rder to absorb 95 %o f light at this wavelength. [6][7][8][9][10][11] Hybridn anomaterials based on TiO 2, [12] ZnO, [13] SnO 2, [14] Co 3 O 4, [15] MnO 2, [16] CdS, [17] CdSe, [18] BiVO 4 [19] ,F e 2 O 3, [20] and graphene have been investigated in many applications due to the synergistic effect between them.R ecently,o ur group has reported ap erformance improvement of reduced graphene oxide incorporated with semiconductors for photoreduction of CO 2 ,m ethylene blue photodegradation and as electron transport layer in organic solar cells. Due to these limitations, the maximum efficiency achieved in aP EC system using this semiconductor is stillf ar from the theoretical limit.…”

“…Thus, graphene is ap romising component to be incorporated in materials used as electrodes to increase their efficiency.R ecently,s everal research groupsh ave been exploring the use of graphenebased nanomaterialst or eplace conventional materials. [6][7][8][9][10][11] Hybridn anomaterials based on TiO 2, [12] ZnO, [13] SnO 2, [14] Co 3 O 4, [15] MnO 2, [16] CdS, [17] CdSe, [18] BiVO 4 [19] ,F e 2 O 3, [20] and graphene have been investigated in many applications due to the synergistic effect between them.R ecently,o ur group has reported ap erformance improvement of reduced graphene oxide incorporated with semiconductors for photoreduction of CO 2 ,m ethylene blue photodegradation and as electron transport layer in organic solar cells. [21][22][23] This work describes the synthesis and characterization of hematite photoanodes using nanoparticles synthesized under hydrothermal conditions and deposited on ac onductive glass substrate by the doctor-blade technique.…”