نتایج جستجو برای: solar light

تعداد نتایج: 506572  

Journal: :Scientific reports 2016
Dong-Lin Wang Hui-Juan Cui Guo-Jiao Hou Zhen-Gang Zhu Qing-Bo Yan Gang Su

Organic-inorganic halide perovskite solar cells have enormous potential to impact the existing photovoltaic industry. As realizing a higher conversion efficiency of the solar cell is still the most crucial task, a great number of schemes were proposed to minimize the carrier loss by optimizing the electrical properties of the perovskite solar cells. Here, we focus on another significant aspect ...

2013
S. Mokkapati K. R. Catchpole

Related Articles Nanophotonic light trapping in solar cells App. Phys. Rev. 2012, 11 (2012) Minimizing reflection losses from metallic electrodes and enhancing photovoltaic performance using the Simicrograting solar cell with vertical sidewall electrodes Appl. Phys. Lett. 101, 103902 (2012) Comparison of periodic light-trapping structures in thin crystalline silicon solar cells J. Appl. Phys. 1...

Journal: :Optics express 2011
Mustafa Akin Sefunc Ali Kemal Okyay Hilmi Volkan Demir

In P3HT:PCBM based organic solar cells we propose and demonstrate numerically plasmonic backcontact grating architectures for strong optical absorption enhanced in both transverse-magnetic and transverse-electric polarizations. Even when the active material is partially replaced by the metallic grating (without increasing the active layer film thickness), we show computationally that the light ...

2014
A. El-Shaer M. A. Khalifa

It is significant to understand the effect of the light intensity and temperature on output performance of the crystalline solar modules. Therefore, it is possible to evaluate the J-V curves of solar module under various environmental conditions. This paper discuses the effect of light intensity and temperature on performance parameters of mono-crystalline and poly-crystalline silicon solar mod...

Journal: :Nano letters 2017
Younghoon Kim Kristopher Bicanic Hairen Tan Olivier Ouellette Brandon R Sutherland F Pelayo García de Arquer Jea Woong Jo Mengxia Liu Bin Sun Min Liu Sjoerd Hoogland Edward H Sargent

Colloidal quantum dot (CQD) materials are of interest in thin-film solar cells due to their size-tunable bandgap and low-cost solution-processing. However, CQD solar cells suffer from inefficient charge extraction over the film thicknesses required for complete absorption of solar light. Here we show a new strategy to enhance light absorption in CQD solar cells by nanostructuring the CQD film i...

2013
Jihuai Wu Gentian Yue Yaoming Xiao Jianming Lin Miaoliang Huang Zhang Lan Qunwei Tang Yunfang Huang Leqing Fan Shu Yin Tsugio Sato

Here we present an ultraviolet responsive inorganic-organic hybrid solar cell based on titania/poly(3-hexylthiophene) (TiO(2)/P3HT) heterojuction. In this solar cell, TiO(2) is an ultraviolet light absorber and electronic conductor, P3HT is a hole conductor, the light-to-electrical conversion is realized by the cooperation for these two components. Doping ionic salt in P3HT polymer can improve ...

Journal: :journal of nanostructures 2015
j. nezamifar k. ghani n. kiomarsipour

new selective coating materials are developed and used in advanced solar collector and absorber designs with improved efficiency. cobalt and copper sulfides nanoparticles are high interest for absorbers of solar thermal collectors due to their optical properties and high absorptance in the solar wavelength range (> 96%). in the present work, cobalt and copper sulfides nanoparticles were synthes...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...

Journal: :journal of nanostructures 2012
m. hamadanian h. sayahi a. r. zolfagharici

in this study, we investigated the effect of using large tio2 nanoparticles in the matrix of small nanoparticles to improve the performance of dye-sensitized solar cells (dsscs), as light scatter to increase the light harvesting. the mixed powder was deposited by electrophoretic deposition (epd) on fto (f-sno2 coated glass). it is shown that adding small quantity of larger nanoparticles can enh...

صادقی, محمد, صفری, حسین,

  Nanoflares are the small impulsive sudden energy releases, due to the explosion of solar background. Thus, determination of their energies and distributions is important . Recent observations and simulation models have shown that the frequency of their energies follows power-law. According to Parker hypothesis, if these exponents are greater than critical value 2, the contributions of nanofla...

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