Sol–gel derived aluminum doped zinc oxide for application as anti-reflection coating in terrestrial silicon solar cells

Verma, Amita; Khan, Firoz; Kumar, Deepak; Kar, M.; Chakravarty, B. C.; Singh, Sumitra; Husain, M.

doi:10.1016/j.tsf.2009.08.010

Cited by 103 publications

(41 citation statements)

References 25 publications

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“…In all likelihood, the combination of the Al/Zn atomic ratio of 20 % and the annealing temperature of 500°C are responsible for the lowest peak's intensity. Importantly, a preferred orientation is seen along the (101) plane in all the crystalline AZO samples, whereas Verma et al [22] have observed a preferred orientation along the (100) plane of air annealed AZO film. Valle et al [31] have observed that there is a preferred AZO crystal growth direction along the (100) plane for Al/Zn atomic ratios up to 3%.…”

Section: Structural Propertiesmentioning

confidence: 77%

“…They [19] have found that the crystalline quality and electrical mobility continuously increase with increases of the annealing temperature up to 800°C. Previously, it has been determined that the air annealed Al rich ZnO (AZO) *Corresponding author: jaehyun@dgist.ac.kr KIM and Springer with an Al/Zn molar ratio > 20% can be used as an antireflection coating [22] on the front surface of silicon solar cells. However, hydrogen annealed AZO films passivate the p-type silicon surface [23].…”

Section: Introductionmentioning

confidence: 99%

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Correlation between reflectance and photoluminescent properties of al-rich ZnO nano-structures

et al. 2015

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Al rich zinc oxide nano-structured films were synthesized using spin coating sol-gel technique. The films were annealed in oxygen ambient in the temperature range of 200-700°C. The structural, optical, and photoluminescence (PL) properties of the films were studied at various annealing temperatures using X-ray diffraction spectroscopy, field emission scanning electron microscopy, photoluminescence emission spectra measurement, and Raman and UV-Vis spectroscopy. The optical band gap was found to decrease with the increase of the annealing temperature following the Gauss Amp function due to the confinement of the exciton. The PL peak intensity in the near band region (INBE) was found to increase with the increase of the annealing temperature up to 600°C, then to decrease fast to a lower value for the annealing temperature of 700°C due to crystalline quality. The Raman peak of E2 (low) was red shifted from 118 cm -1 to 126 cm -1 with the increase of the annealing temperature. The intensity of the second order phonon (TA+LO) at 674 cm -1 was found to decrease with the increase of the annealing temperature. The normalized values of the reflectance and the PL intensity in the NBE region were highest for the annealing temperature of 600°C. A special correlation was found between the reflectance at λ = 1000 nm and the normalized PL intensity in the green region due to scattering due to presence of grains.

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Section: Structural Propertiesmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Correlation between reflectance and photoluminescent properties of al-rich ZnO nano-structures

et al. 2015

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“…This issue has been partially solved using anti reflective coatings (ARC), as silicon oxide -SiO 2 [6], siliconnitride -SiN x [7] and solgel Al doped zinc oxide-AZO [8], among others. Some of those films have demonstrated excellent optical transmittance (~90%) in the 400-1100 nm wavelength range.…”

Section: Alkali Hydroxide Etchants+ Isopropyl Alcohol (Ipa)mentioning

confidence: 99%

Surface Texturing for Silicon Solar Energy by Wet Acid

Guo¹

2017

J Nanosci Adv Tech

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To date, because of solar energy storage coupled with nanomaterials, surface engineering has become an essentially critical method for functional electrode design. Despite years of research on nanoscale materials for energy storage, commercial batteries still make use of microscale materials for electrodes. This is due to a combination of manufacturing challenges for nanoscale materials and the reactive nature of nanoscale materials that leads to high irreversible capacities associated with solid electrolyte interphase formation.Surface texturing is a powerful tool to decouple bulk material properties from surface characteristics that often bottleneck energy storage applications of nanomaterials and has been successfully used to improve the efficiency of photo detectors and solar cells due to a reduction in reflections at the surface. Therefore, the simple wet acid surface texturing methods for green energy-silicon solar energy are reviewed with the aim to provide the vital information about the growing field in surface engineering of solar energy with environmental friendly nature.

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“…There are several methods to synthesis AZO such as sol-gel [6], spray pyrolysis [7], precipitation [8], and hydrothermal processes [9]. Among these methods, sol-gel method is in great demand due to it has thin and large layer, simple, and low cost [10].…”

Section: Introductionmentioning

confidence: 99%