Hierarchical core–shell heterostructure of H₂O-oxidized ZnO nanorod@Mg-doped ZnO nanoparticle for solar cell applications

Abstract

<p>Herein, a core-shell heterostructure of H2O-oxidized ZnO nanorod (NR)@Mg-doped ZnO (MZO) nanoparticle (NP) with superior charge transfer capabilities is presented for the first time. ZnO NRs were strategically designed using...</p>

Double Electron Transport Layer and Optimized CsPbI3 Nanocrystal Emitter for Efficient Perovskite Light-Emitting Diodes

“…Pelicano et al utilized electrodeposited ZnO nanorods (NRs) and rubrene:P3HT bilayer as the electron transport layer (ETL) and hole transport layers (HTLs) in perovskite solar cells, leading to short charge carrier path length and easy hole transport from the perovskite layer to HTLs, thus improving the photovoltaic parameters . Recently, their group reported a core–shell heterostructure of H 2 O-oxidized ZnO NRs@Mg-doped ZnO (MZO) nanoparticles (NPs) with enhanced charge transporting capabilities due to the increased carrier concentration in the MZO shell. , Wang et al used Mg-doped ZnO (ZnMgO) as an interlayer between the ZnO ETL and the quantum dot layer, which reduced electron injection and suppressed exciton quenching, thus enhancing the device EL performance . Recently, C 60 has been considered as a promising electron transport material and widely applied in perovskite solar cells due to their high electron mobility and extreme stability. − Liu et al employed the ZnO@C 60 bilayer as the ETLs to enhance charge extraction and reduce leakage loss and trap-state density in perovskite solar cells, which illustrates the ZnO@C 60 bilayer is a good method to improve device performance …”

“…30 Recently, their group reported a core−shell heterostructure of H 2 O-oxidized ZnO NRs@Mg-doped ZnO (MZO) nanoparticles (NPs) with enhanced charge transporting capabilities due to the increased carrier concentration in the MZO shell. 31,32 Wang et al used Mg-doped ZnO (ZnMgO) as an interlayer between the ZnO ETL and the quantum dot layer, which reduced electron injection and suppressed exciton quenching, thus enhancing the device EL performance. 33 Recently, C 60 has been considered as a promising electron transport material and widely applied in perovskite solar cells due to their high electron mobility and extreme stability.…”

Investigating the Role of Classical Ayurveda-Based Incineration Process on the Synthesis of Zinc Oxide Based Jasada Bhasma Nanoparticles and Zn2+ Bioavailability

“…Also, the 2θ value for the (002) plane shifted to a higher value, indicating a lattice disorder (shrinkage) owing to the presence of Fe in the dopant amount. 42,43 When the XRD spectra from JB incineration cycles 1−17 were compared, a peak broadening effect was seen, which may be attributed to a combined response from crystallite size alteration and increased lattice strain (Figure 1B). The measured crystal sizes of ZnO nanoparticles using Scherer's equation were 53.14 nm (cycle 1), 50.84 nm (cycle 4), 50.94 nm (cycle 8), 49.18 nm (cycle 12), 45.96 nm (cycle 16), and 42.40 nm (cycle 17) (Table 1, see the example in Supporting Information S3).…”

Core–shell nanostructures for better thermoelectrics

“…56 These core-shell structures possess multifunctional properties through integrating two different materials into one entity. Therefore, they are widely studied and used in various applications such as catalysis, [58][59][60][61][62][63] electronics, 64,65 biomedical applications, [66][67][68] photoluminescence, [69][70][71][72] sensors, 73 piezo-electrics, 74,75 magnetic applications, [76][77][78] energy storage, 79,80 solar cells, [81][82][83] and CO 2 capture. [84][85][86] Core-shell materials offer additional electronic modifications due to band-edge alignment at the interface between the core and shell.…”