Carbon Nanotube Reinforced CdSe Inverse Opal with Crack‐Free Structure and High Conductivity for Photovoltaic Applications

Zheng, Xueli; Qin, Wenjing; Ling, Tao; Pan, Caofeng; Du, Xi‐Wen

doi:10.1002/admi.201400464

Cited by 12 publications

(7 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Each of these properties is important for practical use in environmental applications . For these reasons, a variety of semiconductors such as metal oxides, metal sulfides, and metal or carbon nitrides have been used to improve the activity of TiO 2 in the visible region …”

Section: Introductionmentioning

confidence: 99%

“…[ 13,[18][19][20] For these reasons, a variety of semiconductors such as metal oxides, metal sulfi des, and metal or carbon nitrides have been used to improve the activity of TiO 2 in the visible region. [21][22][23][24][25] We took the view that the synergistic combination of TiO 2 with spinel ZnFe 2 O 4 stands to augment photocatalytic performance considerably. Spinel ZnFe 2 O 4 is a semiconductor with a bandgap of 1.9 eV that forms a type II heterostructure with TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

ZnFe₂O₄ Leaves Grown on TiO₂ Trees Enhance Photoelectrochemical Water Splitting

Zheng

Dinh

Arquer

et al. 2016

Small

Self Cite

View full text Add to dashboard Cite

TiO2 has excellent electrochemical properties but limited solar photocatalytic performance in light of its large bandgap. One important class of visible-wavelength sensitizers of TiO2 is based on ZnFe2 O4 , which has shown fully a doubling in performance relative to pure TiO2 . Prior efforts on this important front have relied on presynthesized nanoparticles of ZnFe2 O4 adsorbed on a TiO2 support; however, these have not yet achieved the full potential of this system since they do not provide a consistently maximized area of the charge-separating heterointerface per volume of sensitizing absorber. A novel atomic layer deposition (ALD)-enhanced synthesis of sensitizing ZnFe2 O4 leaves grown on the trunks of TiO2 trees is reported. These new materials exhibit fully a threefold enhancement in photoelectrochemical performance in water splitting compared to pristine TiO2 under visible illumination. The new materials synthesis strategy relies first on the selective growth of FeOOH nanosheets, 2D structures that shoot off from the sides of the TiO2 trees; these templates are then converted to ZnFe2 O4 with the aid of a novel ALD step, a strategy that preserves morphology while adding the Zn cation to achieve enhanced optical absorption and optimize the heterointerface band alignment.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

ZnFe₂O₄ Leaves Grown on TiO₂ Trees Enhance Photoelectrochemical Water Splitting

Zheng

Dinh

Arquer

et al. 2016

Small

Self Cite

View full text Add to dashboard Cite

show abstract

“…Dye‐sensitized solar cells have been demonstrated as one of the most promising photovoltaic devices to offer green, sustainable, renewable and large‐scale energy generation . Although great improvement has progressed rapidly for DSSCs, there are still some challenges to address, of which charge recombination and poor light harvesting efficiency are the main ones .…”

Section: Hollow Nanostructures For Energy Storagementioning

confidence: 99%

Design of Hollow Nanostructures for Energy Storage, Conversion and Production

2018

View full text Add to dashboard Cite

Hollow nanostructures have shown great promise for energy storage, conversion, and production technologies. Significant efforts have been devoted to the design and synthesis of hollow nanostructures with diverse compositional and geometric characteristics in the past decade. However, the correlation between their structure and energy‐related performance has not been reviewed thoroughly in the literature. Here, some representative examples of designing hollow nanostructure to effectively solve the problems of energy‐related technologies are highlighted, such as lithium‐ion batteries, lithium‐metal anodes, lithium–sulfur batteries, supercapacitors, dye‐sensitized solar cells, electrocatalysis, and photoelectrochemical cells. The great effect of structure engineering on the performance is discussed in depth, which will benefit the better design of hollow nanostructures to fulfill the requirements of specific applications and simultaneously enrich the diversity of the hollow nanostructure family. Finally, future directions of hollow nanostructure design to solve emerging challenges and further improve the performance of energy‐related technologies are also provided.

show abstract

“…Inverse opal photonic crystals can be combined with other nanostructures: e.g. with nanospheres [32,33], hydrothermally grown nanowires/rods [34,35], also carbon nanotubes can be incorporated into the structure [36,37]. For higher dimensional structures inverse opals can be filled e.g.…”

Section: Introductionmentioning

confidence: 99%

Combining ZnO inverse opal and ZnO nanorods using ALD and hydrothermal growth

Karajz

Cseh

Parditka

et al. 2022

J Therm Anal Calorim

View full text Add to dashboard Cite

In this paper, we combine the atomic layer deposition synthesis method of inverse opal with the hydrothermal growth of nanorods. From 460 nm polystyrene nanospheres opal crystals were produced using vertical deposition on Si wafers. The opal templates were covered with ZnO by atomic layer deposition. High temperature annealing was used to remove the polystyrene nanospheres to obtain the inverse opal structure. For the hydrothermal growth of ZnO nanorods, two production routes were analysed: hydrothermal reaction before and after the removal of the template. The two paths produced two distinct structures, one with plate like formations and one with nanorods, respectively. Also, the sample modified by the hydrothermal growth after the annealing showed slight differences in optical properties compared to the regular inverse opal. Morphology, composition and structure of the samples were explored using SEM, EDX and XRD. Optical properties were investigated with reflectance UV–Vis spectroscopy. Thermal stability of the polystyrene opal was determined using TG.

show abstract

Carbon Nanotube Reinforced CdSe Inverse Opal with Crack‐Free Structure and High Conductivity for Photovoltaic Applications

Cited by 12 publications

References 62 publications

ZnFe₂O₄ Leaves Grown on TiO₂ Trees Enhance Photoelectrochemical Water Splitting

ZnFe₂O₄ Leaves Grown on TiO₂ Trees Enhance Photoelectrochemical Water Splitting

Design of Hollow Nanostructures for Energy Storage, Conversion and Production

Combining ZnO inverse opal and ZnO nanorods using ALD and hydrothermal growth

Contact Info

Product

Resources

About

Carbon Nanotube Reinforced CdSe Inverse Opal with Crack‐Free Structure and High Conductivity for Photovoltaic Applications

Cited by 12 publications

References 62 publications

ZnFe2O4 Leaves Grown on TiO2 Trees Enhance Photoelectrochemical Water Splitting

ZnFe2O4 Leaves Grown on TiO2 Trees Enhance Photoelectrochemical Water Splitting

Design of Hollow Nanostructures for Energy Storage, Conversion and Production

Combining ZnO inverse opal and ZnO nanorods using ALD and hydrothermal growth

Contact Info

Product

Resources

About

ZnFe₂O₄ Leaves Grown on TiO₂ Trees Enhance Photoelectrochemical Water Splitting

ZnFe₂O₄ Leaves Grown on TiO₂ Trees Enhance Photoelectrochemical Water Splitting