Enhancement ZnO nanofiber as semiconductor for dye-sensitized solar cells by using Al doped

Sutanto, Bayu; Arifin, Zainal; Suyitno, Suyitno; Hadi, Syamsul; Pranoto, Lia Muliani; Agustia, Yuda Virgantara

doi:10.1063/1.4943449

Cited by 10 publications

(2 citation statements)

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“…For example, the ZnO nanofiber structure for photoelectrode applications provides an alternative for increasing the efficiency of solar cell energy conversion due to increased surface activity [7]. The diameter size is confirmed to affect the efficiency of solar cells in a study conducted by Sutanto, where the small fiber size provides a large surface area for a material, thereby increasing the number of semiconductor contacts with dye [8]. The electrospinning technique is the choice of many researchers in manufacturing nanofiber materials.…”

Section: Introductionmentioning

confidence: 99%

Growth of Nanofibers Zinc Oxide on Porous Silicon Substrates using Electrospinning Method: Effect of Temperatures

Suryana,

Mustofa,

Diantoro

2023

J. Phys.: Conf. Ser.

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Electrospinning successfully grew zinc oxide (ZnO) nanofibers onto porous silicon (PSi). The ZnO sprayed solution was prepared from the mixture of zinc acetate hydrate dissolved in distilled water and polyvinyl alcohol (PVA) precursor with a ratio of 1:3 wt. %. The obtained ZnO fibers sample was subsequently annealed at RT, 100°C, 200°C, and 300°C. ZnO polycrystal with hexagonal wurtzite structure formed on PSi substrates at the orientation of (002), (102), and (110). SEM characterization revealed that the average diameter of fibers decreased with the increased annealing temperature due to the decomposition of the PVA and acetate groups. The ATR-FTIR spectral showed the presence of a metal oxide bond group owing to ZnO characteristics on the PSi surface.

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Section: Introductionmentioning

confidence: 99%

Growth of Nanofibers Zinc Oxide on Porous Silicon Substrates using Electrospinning Method: Effect of Temperatures

Suryana,

Mustofa,

Diantoro

2023

J. Phys.: Conf. Ser.

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“…The use of nanomaterials have attracted the interest for many applications such as semiconductor, solar cells, nanofluid, sensor, and etc [2][3][4][5]. The dispersion process of nanoparticle will enhance thermal conductivity and specific heat of fluid [6].…”

Section: Introductionmentioning

confidence: 99%

Numerical approach of Al₂O₃-water nanofluid in photovoltaic cooling system using mixture multiphase model

Sutanto

Indartono

2018

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract.This article aims to numerically analyze the cooling system of photovoltaic device using mixture multiphase model. Aluminum oxide (Al2O3)-water nanofluids at various concentration of 0, 0.5, 1 and 2 vol.% were used as cooling fluid for photovoltaic module. The constant and uniform heat flux of 800 W/m 2 was applied on photovoltaic (PV) module and the various cooling fluids flowed under PV module at Reynold number of 200 and 500. The temperature distribution and local heat transfer coefficient of cooling fluid were observed. The results show that increasing concentration of Al2O3 nanoparticle enhances the local heat transfer coefficient and decreases the temperature of PV cell. The significant enhancement of convection heat transfer of Al2O3-water nanofluid occur at entrance region. The operating temperature of PV cell can be decreased till 303 K for 2 vol.% Al2O3-water nanofluid at Reynold number of 500. IntroductionSolar energy is one of the most abundant renewable energy resources. The electrical devices which convert solar energy into electrical energy via photovoltaic mechanism such as silicon have been developed to gain maximum performance. One of the main factor that can decrease the efficiency of photovoltaic cells is temperature [1]. Moreover, the effect of temperature in photovoltaic devices also decrease the life time and stability of PV system. The cooling mechanism is one of the solution which is applied by researcher to decrease the operating temperature of PV panels. The various types of fluids which can be used as PV cooling system are air, water, ethylene glycol and nanofluid.Nanofluid is a fluid which dispersed nanomaterials with size typically of 1 to 100 nm. The use of nanomaterials have attracted the interest for many applications such as semiconductor, solar cells, nanofluid, sensor, and etc [2][3][4][5]. The dispersion process of nanoparticle will enhance thermal conductivity and specific heat of fluid [6]. The addition of Al2O3 nanoparticles into water have been reported to increase the performance of convection heat transfer [6]. The heat transfer characteristic of nanofluid had been successfully investigated by single-phase and multi-phase model [7,8]. However, the multi-phase model produce heat transfer prediction which is more accurate than the single-phase model, because the disorder movement of nanoparticle and its interaction with base fluid also considered. Movareji, et al [8] showed that Al2O3-water nanofluid under heat flux constant in the discrete phase model had enhancement in heat transfer coefficient and a good agreement with experimental results. Thus, this work will investigate the numerical investigation of Al2O3-water nanofluid as cooling fluid for photovoltaic cells by using two-phase mixture model approach. The

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Metal oxide nanofibers in solar cells

Ling

Jose

2022

Metal Oxide-Based Nanofibers and Their Applications

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Enhancement ZnO nanofiber as semiconductor for dye-sensitized solar cells by using Al doped

Cited by 10 publications

References 10 publications

Growth of Nanofibers Zinc Oxide on Porous Silicon Substrates using Electrospinning Method: Effect of Temperatures

Growth of Nanofibers Zinc Oxide on Porous Silicon Substrates using Electrospinning Method: Effect of Temperatures

Numerical approach of Al₂O₃-water nanofluid in photovoltaic cooling system using mixture multiphase model

Metal oxide nanofibers in solar cells

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Enhancement ZnO nanofiber as semiconductor for dye-sensitized solar cells by using Al doped

Cited by 10 publications

References 10 publications

Growth of Nanofibers Zinc Oxide on Porous Silicon Substrates using Electrospinning Method: Effect of Temperatures

Growth of Nanofibers Zinc Oxide on Porous Silicon Substrates using Electrospinning Method: Effect of Temperatures

Numerical approach of Al2O3-water nanofluid in photovoltaic cooling system using mixture multiphase model

Metal oxide nanofibers in solar cells

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Numerical approach of Al₂O₃-water nanofluid in photovoltaic cooling system using mixture multiphase model