Effects of ZnO nanowire synthesis parameters on the photovoltaic performance of dye-sensitized solar cells

Jung, Juneui; Myoung, Jae‐Min; Lim, Sangwoo

doi:10.1016/j.tsf.2012.04.052

Cited by 23 publications

(13 citation statements)

References 40 publications

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“…On one hand, higher Vis:UV emission ratios are observed for low deposition temperatures (Fig. c and e) which can be attributed to preferential formation of Zn(OH) 2 at lower temperatures . On the other hand, for preparation at high cathodic potentials, even NRA with small amounts of electrochemically deposited ZnO exhibit high defect related emission (Fig.…”

Section: Resultsmentioning

confidence: 99%

Electrodeposition parameters for ZnO nanorod arrays for photovoltaic applications

Ludwig

Ohm

Correa-Hoyos

et al. 2013

Phys. Status Solidi A

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y Contributed equally.To identify optimal deposition conditions and morphologies for ZnO nanorod arrays (NRA) for photovoltaic applications, ZnO NRA were electrochemically grown onto transparent conducting oxide (TCO) substrates pre-covered with an intrinsic zinc oxide (i-ZnO) seed layer (SL) at different cathodic potentials, deposition times and temperatures. The morphology and the optical properties of the ZnO NRA were investigated with respect to application in thin film solar cells. The NRA morphology was found to be strongly correlated with the amount of electrochemically deposited ZnO, irrespective of the reaction conditions for a wide range of parameters. It was demonstrated that also the optical reflectance and transmittance of the NRA were closely connected to the electrochemically deposited amount of ZnO and the NRA morphology. Also the relative amount of defects determined by room temperature (RT) photoluminescence (PL) measurements correlated with the amount of electrochemically deposited ZnO, higher defect densities were however found for high cathodic potentials and low temperatures presumably due to excessive deposition rates and preferential formation of Zn(OH) 2 , respectively. A range of reaction conditions was identified yielding both fast growth and ZnO NRA with morphological and optical properties suited for thin film solar cell applications.

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Section: Resultsmentioning

confidence: 99%

Electrodeposition parameters for ZnO nanorod arrays for photovoltaic applications

Ludwig

Ohm

Correa-Hoyos

et al. 2013

Phys. Status Solidi A

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“…Growth of ZnO Nanowires on the ZnO Inverse Opals’ Backbone : Substrates are vertically dipped in a staining rack and immersed in an aqueous solution composed of 25 mM zinc nitrate hydrate (Aldrich) and 25 mM hexamethylenetetramine (HMT) (Aldrich) for 120 min at 92 °C . Films are then rinsed with deionized water and dried on a hot plate to remove excess water.…”

Section: Methodsmentioning

confidence: 99%

Passivation of ZnO Nanowire Guests and 3D Inverse Opal Host Photoanodes for Dye‐Sensitized Solar Cells

Labouchere

Chandiran

Moehl

et al. 2014

Advanced Energy Materials

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A hierarchical host‐guest nanostructured photoanode is reported for dye‐sensitized solar cells. It is composed of ZnO nanowires grown in situ into the macropores of a 3D ZnO inverse opal structure, which acts both as a seed layer and as a conductive backbone host. Using a combination of self‐assembly, hydrothermal or electrodeposition of single crystalline ZnO nanowires and TiO2 passivation, a novel photoanode with scattering capability for optimal light harvesting is fabricated.

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“…ZnO nanoparticle film provides a large enough surface area; however, electron transport is difficult because of the need for electrons to hop across neighboring nanoparticles and thus slow down the electron mobility that leads to inefficiency [64]. In other hand, Jung et al have fabricated DSSC with ZnO nanowires photoanode that improved light scattering and facilitating electron with energy conversion efficiency of 0.26% [65]. However, small surface area for dye attach and too many path for the light scattering direction causing it to slow down the electron mobility and leads to inefficiency.…”

Section: Zinc Oxide (Zno)mentioning

confidence: 99%

Recent improvements on TiO₂and ZnO nanostructure photoanode for dye sensitized solar cells: A brief review

et al. 2017

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Abstract. Dye sensitized solar cell (DSSC) is a promising candidate for a low cost solar harvesting technology as it promised a low manufacturing cost, ease of fabrication and reasonable conversion efficiency. Basic structure of DSSC consists of photoanode, dye, electrolyte and counter electrode. Photoanode plays an important role for a DSSC as it supports the dye molecules and helps in the electron transfer that will determine the energy conversion efficiency. This paper emphasizes the various improvements that had been done on the TiO2 and ZnO photoanode nanostructures synthesized through thermal method. For overall comparisons, ZnO nanoflowers photoanode had achieved the highest energy conversion efficiency of 4.7% due to its ability of internal light scattering that had increased the electron transportation rate. This has made ZnO as a potential candidate to replace TiO2 as a photoanode material in DSSC.

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Effects of ZnO nanowire synthesis parameters on the photovoltaic performance of dye-sensitized solar cells

Cited by 23 publications

References 40 publications

Electrodeposition parameters for ZnO nanorod arrays for photovoltaic applications

Electrodeposition parameters for ZnO nanorod arrays for photovoltaic applications

Passivation of ZnO Nanowire Guests and 3D Inverse Opal Host Photoanodes for Dye‐Sensitized Solar Cells

Recent improvements on TiO₂and ZnO nanostructure photoanode for dye sensitized solar cells: A brief review

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Effects of ZnO nanowire synthesis parameters on the photovoltaic performance of dye-sensitized solar cells

Cited by 23 publications

References 40 publications

Electrodeposition parameters for ZnO nanorod arrays for photovoltaic applications

Electrodeposition parameters for ZnO nanorod arrays for photovoltaic applications

Passivation of ZnO Nanowire Guests and 3D Inverse Opal Host Photoanodes for Dye‐Sensitized Solar Cells

Recent improvements on TiO2and ZnO nanostructure photoanode for dye sensitized solar cells: A brief review

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Recent improvements on TiO₂and ZnO nanostructure photoanode for dye sensitized solar cells: A brief review