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55 Results Found

  • Article
  • Open Access
9 Citations
4,744 Views
18 Pages

Mono-Doped and Co-Doped Nanostructured Hematite for Improved Photoelectrochemical Water Splitting

  • Justine Sageka Nyarige,
  • Alexander T. Paradzah,
  • Tjaart P. J. Krüger and
  • Mmantsae Diale

24 January 2022

In this study, zinc-doped (α-Fe2O3:Zn), silver-doped (α-Fe2O3:Ag) and zinc/silver co-doped hematite (α-Fe2O3:Zn/Ag) nanostructures were synthesized by spray pyrolysis. The synthesized nanostructures were used as photoanodes in the p...

  • Article
  • Open Access
4 Citations
4,015 Views
13 Pages

Rational Regulation of Surface Free Radicals on TiO2 Nanotube Arrays via Ag2O–AgBiO3 towards Enhanced Selective Photoelectrochemical Detection

  • Yajun Pang,
  • Hao Chen,
  • Jin Yang,
  • Bo Wang,
  • Zhenyu Yang,
  • Jun Lv,
  • Zhenghui Pan,
  • Guangqing Xu,
  • Zhehong Shen and
  • Yucheng Wu

11 October 2020

Due to integrated advances in photoelectrochemical (PEC) functionalities for environment detection applications, one-dimensional (1D) TiO2 nanostructures provide a new strategy (PEC sensors) towards organics detection in wastewater. However, the unid...

  • Article
  • Open Access
8 Citations
2,853 Views
16 Pages

7 February 2022

Dye-sensitized solar cells (DSSCs), a powerful system to convert solar energy into electrical energy, suffer from the high cost of the Pt counter electrode and photosensitizer. In this study, the dual application of waste grape skin is realized by em...

  • Article
  • Open Access
21 Citations
4,044 Views
9 Pages

Interface Passivation Effects on the Photovoltaic Performance of Quantum Dot Sensitized Inverse Opal TiO2 Solar Cells

  • Kanae Hori,
  • Yaohong Zhang,
  • Pimsiri Tusamalee,
  • Naoki Nakazawa,
  • Yasuha Yoshihara,
  • Ruixiang Wang,
  • Taro Toyoda,
  • Shuzi Hayase and
  • Qing Shen

Quantum dot (QD)-sensitized solar cells (QDSSCs) are expected to achieve higher energy conversion efficiency than traditional single-junction silicon solar cells due to the unique properties of QDs. An inverse opal (IO)-TiO2 (IO-TiO2) electrode is us...

  • Article
  • Open Access
29 Citations
5,870 Views
17 Pages

Successful Growth of TiO2 Nanocrystals with {001} Facets for Solar Cells

  • Saif M. H. Qaid,
  • Hamid M. Ghaithan,
  • Huda S. Bawazir,
  • Abrar F. Bin Ajaj,
  • Khulod K. AlHarbi and
  • Abdullah S. Aldwayyan

The growth of nanocrystals (NCs) from metal oxide-based substrates with exposed high-energy facets is of particular importance for many important applications, such as solar cells as photoanodes due to the high reactivity of these facets. The hydroth...

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