Article
Multidisciplinary Sciences
Brishty Deb Choudhury, Chen Lin, Sk Md Ali Zaker Shawon, Javier Soliz-Martinez, Hasina Huq, Mohammed Jasim Uddin
Summary: The study presents an improved photoanode with hierarchical microstructure of photoactive TiO2, along with the deposition of plasmonic nanoparticle Ag using photoreduction method. The branched structure of the photoanode increases dye loading, while Ag nanoparticles play multiple roles in enhancing light-to-current conversion efficiency. This novel design shows remarkably higher photon conversion efficiency compared to traditional structures.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Pawel Gnida, Pawel Jarka, Pavel Chulkin, Aleksandra Drygala, Marcin Libera, Tomasz Tanski, Ewa Schab-Balcerzak
Summary: The impact of various TiO2 nanostructures on the properties of photoanodes and the photovoltaic parameters of dye-sensitized solar cells was investigated. It was found that the addition of nanotubes to the photoanode resulted in the highest UV-Vis absorption, indicating a higher number of sensitizer molecules anchored to the titanium dioxide. This led to the highest power conversion efficiency in the solar cells containing nanotubes and a mixture of dyes with a co-adsorbent.
Article
Materials Science, Multidisciplinary
G. Arthi, Rajiv Selvam, C. Muthamizhchelvan, Y. Hayakawa, Sankar Ganesh Ramaraj
Summary: The efficiency of DSSCs can be improved by using one-dimensional TiO2 nanostructured thin film photoanode materials. In this study, a 1D thorn-like nanostructure was synthesized as a photoanode in the DSSCs using the hydrothermal method. The influence of reaction time on the morphological, structural, and optical properties of the TiO2 nanostructures was investigated.
Article
Green & Sustainable Science & Technology
M. Shobana, P. Balraju, P. Senthil Kumar, N. Muthukumarasamy, R. Yuvakkumar, Dhayalan Velauthapillai
Summary: In this study, the photoanodes in dye-sensitized solar cells were improved by using two different morphologies, one-dimensional hydrothermally synthesized rutile nanorods and nanoparticles of TiO2, to increase the short circuit current density of the device. The combination of both structures resulted in high Jsc by providing a better pathway for electron transportation and efficient light absorption. The crystalline nature of the synthesized bilayer film was confirmed, and UV-Vis and photoluminescence spectroscopy were used to study the absorption and emission properties of the samples. The solar cells with the nanorods/nanoparticles bilayer showed the highest efficiency.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Physical
Sandeep B. Wategaonkar, Vinayak G. Parale, Sawanta S. Mali, Chang-Kook Hong, Rani P. Pawar, Parvejha S. Maldar, Annasaheb V. Moholkar, Hyung-Ho Park, Balasaheb M. Sargar, Raghunath K. Mane
Summary: This study utilized the one-step hydrothermal method to synthesize Sn-doped TiO2 thin films, investigating the influence of different Sn content on the performance of dye-sensitized solar cells. The 3% Sn-TiO2 thin film showed the highest efficiency in DSSCs, outperforming other samples.
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Fuchen Chu, Bingcheng Sun, Bairui Tao, Peng Zhang, Yu Zang, Paul K. Chu
Summary: This study presents the design and fabrication of a photoanode composed of Au/SnS/TiO2 sensitized with natural dye for dye-sensitized solar cells (DSSCs). By calcination, a layer of spherical nano-TiO2 is prepared, and a layer of nano-SnS is deposited on the TiO2 photoanode using the continuous ion layer adsorption reaction (SILAR). The sensitized Au nanoparticles exhibit enhanced localized surface plasmon resonance (LSPR) effects and electron trapping ability, resulting in improved electron mobility and reduced electron recombination in the DSSC.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Electrical & Electronic
V. S. Manikandan, A. K. Palai, Ananthakumar Ramadoss, Smita Mohanty, M. Navaneethan
Summary: This study fabricated Ag-decorated cauliflower-like TiO2 photoanode and found that nanoparticles can improve DSSC efficiency through photovoltaic performance analysis.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
N. Sriharan, T. S. Senthil, P. Soundarrajan, Misook Kang
Summary: TiO2 nanorods were synthesized from colloidal titanate using a hydrothermal method, and Mg metallic ions were doped to study their influence on the growth of TiO2 nanorods. The introduction of Mg dopant induced constraint stress in the nanorods, resulting in a shift in preferentially oriented crystallographic plane. The crystallographic structures of TiO2 nanorods remained unchanged, but the surface to volume ratio and absorption capacity shifted due to Mg doping. This physical property change was confirmed by EDS analysis. The doped TiO2 nanorods showed improved performance as photoelectrodes in dye-sensitized solar cells, with the 2 mol.% Mg doped TiO2 nanorods achieving a high power conversion efficiency of 6.36%.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
G. Arthi, J. Archana, M. Navaneethan, S. Ponnusamy, Y. Hayakawa, C. Muthamizhchelvan, Sankar Ganesh Ramaraj
Summary: 3D hierarchical rutile TiO2 nanostructures were successfully prepared using the solvothermal method. X-ray diffraction confirmed the formation of the anatase phase. High-resolution transmission electron microscopy revealed the self-assembly of several hundred radially distributed nanofibers into a nanostructure. The cone-shaped nanostructure exhibited a short circuit current density of 2.8 mA/cm2, an open circuit voltage of 0.70 V, and a fill factor of 0.55. The efficiency of the cone-shaped hierarchical rutile TiO2 structures was 1.12%.
Article
Environmental Sciences
Muhammad Umair Shahid, Norani Muti Mohamed, Ali Samer Muhsan, Siti Nur Azella Zaine, Mehboob Khatani, Asfand Yar, Waqar Ahmad, Muhammad Babar Hussain, Asma A. Alothman, Mohammed Sheikh Saleh Mushab
Summary: Dye-sensitized solar cells (DSSCs) have attracted attention for their low-cost processing, ability to work in diffuse light, and potential for building integrated photovoltaics (BIPV). However, their efficiency is low due to multiple issues. This study introduces a graphene/TiO2 scattering layer that enhances electron transport and light scattering. Results show that with 0.01 wt% graphene, a 33% higher photoconversion efficiency (PCE) was achieved compared to without scattering layer. However, PCE decreases at >0.01 wt% graphene due to loss of diffuse reflectance and higher optical absorption.
Article
Materials Science, Multidisciplinary
Bandana Ranamagar, Isaac Abiye, Fasil Abebe
Summary: The Rhodamine-6G derivative Rhd and its metal complexes with aluminum and chromium ions were synthesized and characterized using UV-vis and fluorescence spectroscopy. Dye-sensitized solar cells (DSSCs) were fabricated with Rhd and the metal complexes, and their solar-to-electric power efficiencies were determined through current-density measurements and Electrochemical Impedance Spectroscopy (EIS). The Rhd and Cr3+-sensitized solar cell showed the highest solar to electric power efficiency at 0.16%.
Article
Energy & Fuels
Kirti Sahu, Mahesh Dhonde, Vemparala Venkata Satyanarayana Murty
Summary: The incorporation of Cu into TiO2 microstructure was found to enhance the V-oc of DSSCs, leading to an improvement in efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Dahyunir Dahlan, Marjoni Imamora Ali Umar, Siti Naqiyah Sadikin, Jaenudin Ridwan, Akrajas Ali Umar
Summary: This study reports that magnesium doping can enhance the photovoltaic performance of dye-sensitized solar cells by passivating electron traps and improving interfacial charge transfer.
Review
Engineering, Electrical & Electronic
Navdeep Kaur, Davinder Paul Singh, Aman Mahajan
Summary: This review provides a sequential guideline to enhance the power conversion efficiency (PCE) and stability of plasmonic dye-sensitized solar cells (DSSCs) using various methods of incorporation, with a focus on the ion implantation technique for metal nanoparticles.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Junchen Sun, Min Fang, Weiju Zhu, Zhenyu Wu, Cun Li
Summary: By decorating Ag nanoparticles (Ag NPs) on SiO2@TiO2-Ag (STA) microspheres and assembling them into the photoanode, the performance of dye-sensitized solar cells (DSSCs) is significantly improved, resulting in increased photoelectric conversion efficiency.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)