Electrochromism in spray deposited iridium oxide thin films

Patil, Pramod S.; Kawar, R.K.; Sadale, S.B.

doi:10.1016/j.electacta.2004.10.081

Cited by 47 publications

(31 citation statements)

References 25 publications

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“…This observation is may be attributed to the fact that ion insertion in iridium oxide takes place through filling the defects based on absorption modulation process. The crystalline size of IrO 2 grown at higher substrate temperature (T sub ) is found to be around 14 nm which is considered to be too dense for ions intercalation [2], [21]. The Amorphus and polycrystalline iridium oxide films were grown onto ITO substrate in order to investigate the dependence of the electrochromic performance on their preparation conditions.…”

Section: Optical Modulationmentioning

confidence: 99%

“…The colouration/bleaching process formula proposed for the spray deposited Ir-oxide thin films is either [2], [19] …”

Section: B Electrochromic Characterizationmentioning

confidence: 99%

“…A JEOL X-ray diffractometer (model JSDX-60PA) with Ni-filtered and Cu: Kα radiation ( λK α = 0.154184 nm) was high contrast non emissive information displays [1], [2]. Two categories of electrochromism are defined based on the absorption wavelengths namely; visible electrochromism in the wavelength range of 350 to 850 nm and non-visible electrochromism in the wavelength range < 350 nm and > 850 nm.…”

Section: A Preparation Of Electrochromic Iridium Oxidementioning

confidence: 99%

“…Electrochromism is the process by which a material exhibits reversible and persistent colour change with applied electric current or applied field [1], [2]. Electrochromic materials switch from the uncoloured state to the coloured state by simultaneous ion and electron injection and consequently have potential application in energy efficient "Smart Windows" [3], mirrors with variable reflectance and Tarek Ben Nasrallah is with the Physics Department, Faculty of Science, Hail University, Hail, Kingdome of Saudi Arabia and Université de Tunis El Manar, Faculté des Sciences de Tunis, Unité de physique des dispositifs à semi-conducteurs, Tunis, Tunisie (e-mail: nasrallah.tarek@gmail.com).…”

Section: Introductionmentioning

confidence: 99%

“…The iridium oxide thin films deposited onto ITO-coated glass substrates were used as working electrodes in a three-electrode electrochemical cell containing 0.5M H 2 SO 4 solution. The Platinum sheet and saturated calomel electrode (SCE) are used as a counter and reference electrodes respectively.A JEOL X-ray diffractometer (model JSDX-60PA) with Ni-filtered and Cu: Kα radiation ( λK α = 0.154184 nm) was high contrast non emissive information displays [1], [2]. Two categories of electrochromism are defined based on the absorption wavelengths namely; visible electrochromism in the wavelength range of 350 to 850 nm and non-visible electrochromism in the wavelength range < 350 nm and > 850 nm.…”

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confidence: 99%

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Influence of Some Preparative Parameters on Microstructure and Electrochromic Behavior of Sprayed Iridium Oxide Films

Mahmoud¹,

Riad²,

El-Deeb³

et al. 2013

IJAPM

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Abstract-Electrochromic iridium oxide thin films were deposited by spray pyrolysis technique onto indium-doped tin oxide (ITO) coated glass substrates using iridium chloride as an aqueous solution. The influence of the substrate temperature, the deposition period of time and the solution molarity have been investigated as related to the film's electrochromic (EC) performance. The electrochromic properties of the films were investigated in a (0.5M H 2 SO 4 ) aqueous electrolytic solution using cyclic voltammetry (CV). The transmittance has been measured over the spectral wavelength range between 300 and 2400 nm. The substrate temperature (T sub ), the deposition period of time, the solution molarity and the colouration and bleaching potentials were optimized and found to be 400 o C, 10 min, 0.02 M, ±0.8 V, respectively. The films have acquired a maximum transmittance solar modulation ΔT s and a maximum visible modulation ΔTv at 630 nm optimal optical modulation. The iridium oxide films prepared in this work have been deposited onto ITO-coated glass substrates using spray pyrolytic iridium chloride solution as well as the effect of substrate temperature, solution molarity and the deposition time have been investigated and discussed in accordance with the films' electrochromic activation. II. EXPERIMENTAL A. Preparation of Electrochromic Iridium OxideIndium tin oxide (ITO)-coated glass substrates were first cleaned very carefully by ultrasonic degreasing process with isopropanol and deionized water. A set of iridium oxide thin films were then deposited on the ITO-coated glass substrates using the aqueous solution of iridium chloride (IrCl 3 .3H 2 O) under different substrate temperatures, different solution molarity ratios and for various time. The samples were then annealed at 600 o C for 2 hours.The optical transmittance of the films was measured in the wavelength range between 300 nm to 2500 nm using SHIMADZU UV 3101 PC: UV-VIS-NIR double beam spectrophotometer. The electrochromic (EC) characteristics of the iridium oxide thin films deposited onto ITO-coated glass substrates were then investigated at different substrate temperatures (ranging from 350 to 500 o C, in steps of 50 o C) and with solution molarity ratios (between 0.005 and 0.03 M). The iridium oxide thin films deposited onto ITO-coated glass substrates were used as working electrodes in a three-electrode electrochemical cell containing 0.5M H 2 SO 4 solution. The Platinum sheet and saturated calomel electrode (SCE) are used as a counter and reference electrodes respectively.A JEOL X-ray diffractometer (model JSDX-60PA) with Ni-filtered and Cu: Kα radiation ( λK α = 0.154184 nm) was high contrast non emissive information displays [1], [2]. Two categories of electrochromism are defined based on the absorption wavelengths namely; visible electrochromism in the wavelength range of 350 to 850 nm and non-visible electrochromism in the wavelength range < 350 nm and > 850 nm. Iridium oxides are known as anodic electrochromic material in which they are able to...

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Section: Optical Modulationmentioning

confidence: 99%

“…The colouration/bleaching process formula proposed for the spray deposited Ir-oxide thin films is either [2], [19] …”

Section: B Electrochromic Characterizationmentioning

confidence: 99%

Section: A Preparation Of Electrochromic Iridium Oxidementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Influence of Some Preparative Parameters on Microstructure and Electrochromic Behavior of Sprayed Iridium Oxide Films

Mahmoud¹,

Riad²,

El-Deeb³

et al. 2013

IJAPM

View full text Add to dashboard Cite

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Electrochromic Materials and Devices: Fundamentals and Nanostructuring Approaches

Wang

Wei

et al. 2018

Multifunctional Nanocomposites for Energy and Environmental Applications

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Fundamentals and Advances of Electrochromic Systems: A Review

Isfahani

Silva

2021

Adv Eng Mater

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Electrochromic (EC) materials as one of the known types of smart materials have found many applications and therefore have recently been considered by many researchers and industries. Herein, after classifying these materials based on various properties such as chemical structure, optical properties, color, and applications explains how the EC-based systems work. Also, by introducing the widely used analyses in this field along with the different parameters and properties derived from them, using different examples from previous research, discusses the principles and advances of EC. Guidelines for further investigations are outlined.

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Electrochromism in spray deposited iridium oxide thin films

Cited by 47 publications

References 25 publications

Influence of Some Preparative Parameters on Microstructure and Electrochromic Behavior of Sprayed Iridium Oxide Films

Influence of Some Preparative Parameters on Microstructure and Electrochromic Behavior of Sprayed Iridium Oxide Films

Electrochromic Materials and Devices: Fundamentals and Nanostructuring Approaches

Fundamentals and Advances of Electrochromic Systems: A Review

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