Energy Gap Demeanor for Carbon Doped with Chrome Nanoparticle to Increase Solar Energy Absorption

نویسندگان

  • A. J. N. Khalifa Mechanical Engineering, Engineering College, Al-Nahrain University,Baghdad, Iraq.
  • N. K. Al-Sahib Mechanical Engineering, Engineering College, Al-Nahrain University,Baghdad, Iraq.
  • R. N. Abed Mechanical Engineering, Engineering College, Al-Nahrain University,Baghdad, Iraq.
چکیده مقاله:

Novel method doped carbon with nanoparticle Cr2O3 and thin film has been studied in much thought in wavelength range, the doping can help new excellent physical and chemical properties for carbon, this application has a semiconductor feature. Nanocomposite thin film deposited on copper and glass substrates have been created by utilizing Spray Pyrolysis method. The precursor solution for the nanocomposite (Cr2O3/C) was blended with the polyethylene glycol as a colloidal. The optical band gap is a crucial property for the nanocomposite, for instance, nanocomposite thin film of Cr2O3/C was kept by shower process on glass and copper substrates. The band gap for the nanocomposite photo-catalytic has been finished using X-ray diffraction, UV-Vis spectrometer. The assessed optical band gaps for direct and indirect transition values determined and were 3.5, 3.25 eV and photon energy 1.65 eV to carbon doped by nanoparticle Cr2O3. Thin film thickness ranging between 45-160 µm This paper achieved the doped carbon by nanoparticles of Cr2O3 for thin layer coating in flat plate collector. New coating activity may be given by novel nanocomposite Cr2O3/C structure as a semiconductor. Results showed a new nanocomposite to enhance the absorption of the solar energy light activity.This paper achieved the doped carbon by nanoparticles of Cr2O3 for thin layer coating in flat plate collector. New coating activity may additionally be given via novel Nanocomposite Cr2O3/C structure as a semiconductor. Results showed a new Nanocomposite to enhance the absorption of solar energy light activity.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

measurement the absorption capacity of solar energy storage technology

Although solar energy is one of the most important renewable energies in Iran that most areas of the country, especially the Central Desert, have considerable ability to use, but the random nature of this type of energy makes it difficult to predict its output power and may cause problems in the performance of the feed systems. For this reason, the use of energy storage systems for periods of l...

متن کامل

Scattering and absorption properties of carbon nanohorn-based nanofluids for solar energy applications

In this work we investigated the scattering and absorption properties of nanofluids consisting in aqueous suspensions of single wall carbon nanohorns. The characteristics of these nanofluids were evaluated in order to use them as direct sunlight absorber fluids in solar devices. The investigation was carried our for nanohorns of different morphologies and for suspensions prepared with different...

متن کامل

Selective absorption of Carbon Nanotube thin films for solar energy applications

A new spectrally selective coating based on carbon nanotubes (CNTs) for solar thermal applications is demonstrated. For optimized coatings solar absorptance coefficients α40.92 and thermal emittance coefficients εo0.1 (400 °C) were achieved. These results render CNT coatings as a low cost and high performance alternative to commercially available vacuum deposited cermet coatings for concentrate...

متن کامل

Local Energy Gap in Deformed Carbon Nanotubes

The effects of graphite surface geometrical deformation on the dynamics of conducting electrons are investigated theoretically. The analysis is performed within the framework of a deformation-induced gauge field and corresponding deformation-induced magnetic field. It is shown that the latter gives a local energy gap along the axis of a deformed nanotube. We compare our energy gap results with ...

متن کامل

Tailoring the Energy Band Gap of Transition Metal Doped TiO2 Thin Film

Water splitting for hydrogen production under sunlight using TiO2 as photo catalyst provides a better route for solar energy and attracts the attention of many researchers. The photo catalytic activity of TiO2 under sunlight irradiation depends on the band gap energy. The transition metal doped TiO2 shows an edge over TiO2 in optical absorbance and photo catalytic activity. Thin film of Cr dope...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


عنوان ژورنال

دوره 13  شماره 3

صفحات  143- 154

تاریخ انتشار 2020-07-01

با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023