Nanodiamond Coated Glass as a Protective Layer in Solar Cells

Simões, Raul; Neto, Victor

doi:10.1016/j.matpr.2015.04.027

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…It is also a material of choice for optical windows [3,4] and protective coatings for optical materials such as optical fibres [5]. Anti-reflecting and protective coatings for solar cells [6] can be also expected.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of High Quality Transparent Nanocrystalline Diamond Films on Glass Substrates Using a Distributed Antenna Array Microwave System

et al. 2022

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Diamond is a material of choice for the fabrication of optical windows and for protective and anti-reflecting coatings for optical materials. For these kinds of applications, the diamond coating must have a high purity and a low surface roughness to guarantee a high transparency. It should also be synthesized at low surface temperature to allow the deposition on low melting-point substrates such as glasses. In this work, the ability of a Distributed Antenna Array (DAA) microwave system operating at low temperature and low pressure in H2/CH4/CO2 gas mixture to synthesize nanocrystalline diamond (NCD) films on borosilicate and soda-lime glass substrates is investigated aiming at optical applications. The influence of the substrate temperature and deposition time on the film microstructure and optical properties is examined. The best film properties are obtained for a substrate temperature below 300 °C. In these conditions, the growth rate is around 50 nm·h−1 and the films are homogeneous and formed of spherical aggregates composed of nanocrystalline diamond grains of 12 nm in size. The resulting surface roughness is then very low, typically below 10 nm, and the diamond fraction is higher than 80%. This leads to a high transmittance of the NCD/glass systems, above 75%, and to a low absorption coefficient of the NCD film below 103 cm−1 in the visible range. The resulting optical band gap is estimated at 3.55 eV. The wettability of the surface evolves from a hydrophilic regime on the bare glass substrates to a more hydrophobic regime after NCD deposition, as assessed by the increase of the measured contact angle from less than 55° to 76° after the deposition of 100 nm thick NCD film. This study emphasizes that such transparent diamond films deposited at low surface temperature on glass substrate using the DAA microwave technology can find applications for optical devices.

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Section: Introductionmentioning

confidence: 99%

Synthesis of High Quality Transparent Nanocrystalline Diamond Films on Glass Substrates Using a Distributed Antenna Array Microwave System

et al. 2022

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“…Diğer bir çalışmada güneş paneli camlarında kullanılan, yansımayı önleyerek ışık geçirgenliğinin maksimumda tutulmasını hedefleyen anti reflektif (AR) kaplamalardaki basit daldırma yöntemindeki molar oranı incelenerek sistem verimi artırılmıştır (Huang et al 2017). Yansıma ve kırılmayı artıran bir başka unsurun da cam yüzeylerindeki pürüzlülük olduğundan yola çıkılarak yapılan bir diğer çalışmada buhar biriktirme yöntemi ile yüzey nano gümüş tabaka ile kaplanmış ve camın ışığı geçirme oranının % 90'a ulaştığı belirlenmiştir (Simões and Neto 2015). Panel yüzeylerinde biriken tozlar panel çıkış verimlerini düşürmektedir.…”

Section: Introductionunclassified

Farklı Karakteristikteki Cam Çeşitlerinin Güneş Paneli Çıkış Gücüne Etkisinin İncelenmesi

Ayaz¹,

Hocaoğlu²

2020

Afyon Kocatepe University Journal of Sciences and Engineering

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The glasses that are used on Photovoltaic panels (PV), directly affect the output power performance of the PVs according to their ability to transmit the solar light, beside protection of the PV cells against environmental effects. Therefore, it can be said that they are among the most important parts of solar panels. In this study, it is aimed to investigate "the effects of different type of glasses having different characteristically properties" on the output power of solar panels. For this aim, two identical PV modules are obtained from the market. Consequently, the glass of one of the PV module is replaced with different type of glasses (Replaced using 3 different glasses) and the output power of the module is measured during experiments, by the help of a DC load that is connected at the output of the module. On the other hand, same load is connected to the output of the original module and the performances of each module are tested under same solar radiation conditions. Finally, the measured data are analyzed and the total efficiency lose are compared with the efficiency of the PV having original glass that was optimized to have high light transmit ability.

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