Self-Assembled ZnO Nanosheet-Based Spherical Structure as Photoanode in Dye-Sensitized Solar Cells

Date

2018-03-01

Author

Ameri, Mohsen
Raoufi, Meysam
Zamani-Meymian, M. -R.
Samavat, Feridoun
Fathollahi, M. -R.
Mohajerani, Ezeddin

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

135
views

0
downloads

High surface area and enhanced light scattering of ZnO nanosheet aggregates have made them a promising active layer candidate material for fabrication of nanostructure dye-sensitized solar cells. Here, we propose a facile preparation method of such ZnO nanosheet structures, and in order to verify their applicability as photoanode material for dye-sensitized solar cells, we employ morphological, optical, structural and electrical measurements. The results reveal the high surface area available for dye molecules for enhancing adsorption, high light scattering and competitive power conversion efficiencies compared to the works in literature. Finally, the device is optimized with respect to the photoanode thickness. The favorable features shown here can extend the application of the structure to other types of sensitization-based perovskite and quantum dot solar cells.

URI

https://hdl.handle.net/11511/94508

Journal

JOURNAL OF ELECTRONIC MATERIALS

DOI

https://doi.org/10.1007/s11664-017-6000-0

Collections

Center for Solar Energy Research and Applications (GÜNAM), Article

Suggestions

OpenMETU
Core

Radial junction solar cells prepared on single crystalline silicon wafers by metal-assisted etching BAYTEMİR, Gulsen; ES, FIRAT; ALAGOZ, Arif Sinan; Turan, Raşit (2017-05-01) Radial junction solar cells have been proposed as an alternative device geometry to conventional planar solar cells with its remarkable electrical and optical performance. In this geometry, densely packed nano/micropillars allow minority carrier collection in the radial direction and shorten carrier diffusion length to p-n junction. Besides, reduced reflection from surface and increased light trapping in nano/micropillars enhance solar cell efficiency. In this study, photolithography and metal-assisted etch...
Numerical analysis ofdopant-freeasymmetric silicon heterostructure solar cell withSiO(2)as passivation layer Mehmood, Haris; Nasser, Hisham; Tauqeer, Tauseef; Turan, Raşit (Wiley, 2020-08-01) Conventional silicon heterojunction solar cells employ defects-prone a-Si:H layers for junction formation and passivation purposes. Substituting these layers with hole-selective MoO(x)and electron-selective TiO(x)can reduce parasitic absorption and energy band offsets issues associated with doped silicon films. In this work, dopant-free asymmetric heterostructure Si solar cells are studied with and without SiO(2)passivation layer, and their performance has been compared. The inclusion of ultrathin SiO(2)ins...
Radial junction solar cells prepared on crystalline si by metal assisted electroless etching Baytemir, Gülsen; Es, Fırat; Turan, Raşit (null; 2016-06-05) Radial junction solar cell has been proposed as an alternative device geometry to conventional planar solar cells with its remarkable electrical and optical performance. In this geometry, micro/nano pillars on the surface allow minority carrier collection in the radial direction and shorten the carrier diffusion length. Moreover, increased light trapping in the pillars and reduced reflection from surface enhance the solar cell efficiency. In their letter (article no. 1600444) Baytemir et al. have investigat...
Electrical response of electron selective atomic layer deposited TiO2-x heterocontacts on crystalline silicon substrates Ahiboz, Doguscan; Nasser, Hisham; Aygun, Ezgi; Bek, Alpan; Turan, Raşit (IOP Publishing, 2018-04-01) Integration of oxygen deficient sub-stoichiometric titanium dioxide (TiO2-x) thin films as the electron transporting-hole blocking layer in solar cell designs are expected to reduce fabrication costs by eliminating high temperature processes while maintaining high conversion efficiencies. In this paper, we conducted a study to reveal the electrical properties of TiO2-x thin films grown on crystalline silicon (c-Si) substrates by atomic layer deposition (ALD) technique. Effect of ALD substrate temperature, p...
Optimization of Selective Electrophoretic Deposition and Isostatic Compression of Titania Nanoparticles for Flexible Dye-Sensitized Solar Cells Kocaoglu, Bahadir Can; Icli, Kerem Cagatay; Özenbaş, Ahmet Macit (2016-04-01) Flexible photoanodes on PEN/PET based substrates for dye-sensitized solar cells (DSSC) by using electrophoretic deposition (EPD) method for the formation of titania nanoporous layer with titania nanoparticles (P-25) were produced. Considering commercially available titania nanoparticles containing both anatase and rutile phases, the undesired rutile nanoparticles, for DSSC applications, were almost eliminated from the coatings by selective pH adjustment of the EPD solutions without any binders. The coating ...

Citation Formats

M. Ameri, M. Raoufi, M.-R. Zamani-Meymian, F. Samavat, M.-R. Fathollahi, and E. Mohajerani, “Self-Assembled ZnO Nanosheet-Based Spherical Structure as Photoanode in Dye-Sensitized Solar Cells,” JOURNAL OF ELECTRONIC MATERIALS, vol. 47, no. 3, pp. 1993–1999, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/94508.