fundamentals of nanostructured solar cells

... hetero-junction bifacial cells [40], c-Si bifacial cells (n-type/p-type, mono/multi) [41-43], dyesensitized bifacial solar cells [44], rear contact bifacial cells [45], etc With bifacial solar cells, two different ... manufacturing of bifacial solar cells and modules only started a few years ago [54-56] Recently, bifacial silicon solar cells with a front side efficiency of > 20% (with a rear to front performance of > ... these cells can realize some of these requirements [76] In space, bifacial cells offer a lower solar absorbance in the infra-red region of the spectrum, thus reducing the operating temperature of...

Ngày tải lên: 09/09/2015, 08:13

... characteristics of the fabricated SiNWs solar cell under dark and light conditions the thickness of Si base substrate more thinly For improvement of conversion efficiency of the SiNWs solar cells, the ... reduction of the reflectance will be expected from the optimization of the synthesis conditions of SiNWs For analysis of the electrical properties, the I–V curve of the fabricated SiNWs solar cell ... planar Si solar cells Fig 2(a) shows the photograph of the fabricated SiNWs solar cell The surface color was dark brown in appearance To examine the optical properties of the SiNWs solar cell,...

Ngày tải lên: 16/03/2014, 15:12

... particular structure considered FIG – A PROTOTYPE OF SOLAR CAR FIG - SCHEME OF THE SERIES HYBRID SOLAR VEHICLE (SEE NOMENCLATURE) PV EG ICE II STRUCTURE OF THE SOLAR HYBRID VEHICLE As it is known, two ... Nagayoshi H., Kamisako K (1997), Evaluation of an Electric Motor and Gasoline Engine Hybrid Car Using Solar Cells, Solar Energy Material and Solar Cells (47), 1997 [10] Seal M.R (1995), Viking ... Study of the Design Variables for a Hybrid Electric Car with Solar Cells, Proc of METIME Conference, June 2-3, 2005, University of Galati, RO [19] Ahman M (2001), Primary Energy Efficiency of Alternative...

Ngày tải lên: 30/03/2014, 10:20

... simulation studies of the performance of heterojunction silicon solar cells are very important in order to understand the operation of the solar cells and optimize the design of solar- cell structures ... a-Si:H/c-Si solar cells made by Sanyo and b) performance of the solar cell as a function of p-type a-Si:H thickness [18] 2 Heterojunction Silicon Based Solar Cells 23 Figure 2.7a shows a solar cell ... silicon (c-Si) solar cells and thin-film silicon solar cells Wafer-based c-Si solar cells dominated the PV market in 2008 with an overall share of 87%, and feature a high module efficiency of 12 to...

Ngày tải lên: 29/05/2014, 23:53

... Influence of scattering layers on efficiency of dye-sensitized solar cells Solar Energy Mater Solar Cells 2006, 90:1176-1188 10 Ko KH, Lee YC, Jung YJ: Enhanced efficiency of dye-sensitized TiO2 solar ... TiO2 solar cells Solar Energy Mater Solar Cells 2008, 92:1628-1633 Park K-H, Jin EM, Gu HB, Shim SE, Hong CK: Effects of HNO3 treatment of TiO2 nanoparticles on the photovoltaic properties of dye-sensitized ... H-K: Thickness effect of RF sputtered TiO2 passivating layer on the performance of dye-sensitized solar cells Solar Energy Mater Solar Cells 2011, 95:344348 Umar A: Growth of comb-like ZnO nanostructures...

Ngày tải lên: 20/06/2014, 20:20

... Y-Y, Lee Y-Y, Chang LW, Wu J-J, Chen C-W: The influence of interface modifier on the performance of nanostructured ZnO/polymer hybrid solar cells Appl Phys Lett 2009, 94:063308 Wu SJ, Tai QD, Yan ... corresponding dark J-V characteristics of IOSCs with different Al concentrations (d) The J-V characteristics of devices based on ZnO/P3HT hybrid solar cells Fan et al Nanoscale Research Letters ... conductivity, R was the tested value of resistivity, S was the area of the effective measuring electrode, and h was the thickness of the samples It is found that the s of AZO whisker samples significantly...

Ngày tải lên: 20/06/2014, 22:20

... with the objective of evaluating the electrochemical properties of the counter electrodes and the energy conversion efficiencies of cells Figure shows the Bode phase plots of the DSSCs with graphenes, ... reduction in dyesensitized solar cells Electrochem Commun 2008, 10:1087-1089 Koo B-K, Lee D-Y, Kim H-J, Lee W-J, Song J-S, Kim H-J: Seasoning effect of dye-sensitized solar cells with different counter ... thickness of approximately 30 μm The mesoporous TiO2 film was then immersed in a solution of the N-719 dye (Ruthenizer 535-bisTBA, Solaronix, Aubonne, Switzerland) with a concentration of 0.5 mmol/L...

Ngày tải lên: 20/06/2014, 23:20

... Because of this reason, the film with 3.5 vol.% of 1,8-octanedithiol exhibited the best device performances in this work Conclusions The performance characteristics of BHJ polymer solar cells based ... properties of composite polymer/fullerene films for organic solar cells Adv Funct Mater 2005, 15:1193-1196 14 Padinger F, Rittberger RS, Sariciftci NS: Effects of postproduction treatment on plastic solar ... Origin of the open circuit voltage of plastic solar cells Adv Funct Mater 2001, 11:374-380 Lee W, Shin S, Han SH, Cho BW: Manipulating interfaces in a hybrid solar cell by in situ photosensitizer...

Ngày tải lên: 20/06/2014, 23:20

... level of Ag S is lower than that of TiO2 as shown in Figure 6a[40], but the CB level of CdS is higher than that of TiO2 Therefore, the electron transfer is more efficient in CdS/TNT solar cells ... architecture of TiO2 electrode Ag2S QDs cannot be deposited in large numbers on the Page of inner surface of TNTs due to the limited space in TNTs, while the number of Ag2S QDs deposited on the surface of ... solid-state heterojunction solar cells MRS Bull 2005, 30:23-27 Wei D: Dye sensitized solar cells Int J Mol Sci 2010, 11:1103-1113 Fan SH, Wang KZ: Recent advances on molecular design of ruthenium (II)...

Ngày tải lên: 21/06/2014, 01:20

... photoluminescence for Si QDs of various sizes in SiO2 matrix [1] solar cells As this would be close to the Voc record [8] of single-junction mono-crystalline silicon solar cells, in a thin film solar cell it ... small as Rsh of the cell is in the order of MX.cm2 The short circuit current increases by a factor of three due to the decrease of Rs Contact and Sheet Resistances To identify the origin of the large ... analysis of the series resistance (Rs) of the cell Instead of simply calculating the slope of the dark I–V curve at the high voltage region, Rs is obtained according to the following In a general solar...

Ngày tải lên: 21/06/2014, 07:20

... properties of a blocking layer with an FTO substrate may improve the performance of dye-sensitized solar cells Further studies using different ion energies and fluence may further explain the role of ... Schematic of a electrostatic spray deposition of TiO2 compact layer, b SHI-irradiated TiO2 compact layer and, c SHI-irradiated TiO2 compact layer assisted DSSCs Page of The surface morphologies of the ... mixture of acetonitrile (ACN) and t-butyl alcohol (1:1 v/v) and dried at room temperature A sandwich-type configuration was employed to measure the performance of the dye-sensitized solar cells, ...

Ngày tải lên: 21/06/2014, 08:20

... curves of DSSCs based on the pure TiO2 cell, 10, 20, 30, 50, and 100 wt.% TNT cells, and cells without any TNT under AM 1.5 illumination (100 mW/cm2).One of the most important parameters of a solar ... FE-SEM images of the TiO2 nanoparticle/TNT composite layer Figure Absorption spectra of dye from TiO2 films containing different ratios of TNTs Figure IPCE action spectra of solar cells IPCE action ... dye-sensitized solar cells Coord Chem Rev 2001, 248:1479 [7] Kang SH, Kim JY, Kim Y, Kim HS, Sung YE: Surface modification of stretched TiO2 nanotubes for solid-state dye-sensitized solar cells J Phys...

Ngày tải lên: 21/06/2014, 17:20

... fulfills the role of an ARC of a solar cell when exposed to the outside environment, especially for mass-produced solar cells The endurance dependence on the refractivity and structure of the ARC material ... then 10 h, five times Finally, the solar cells are fabricated A 5-in p-type crystalline CZ-Si solar- grade wafer of around 200 μm thick having a specific resistance of around to approximately Ω cm ... in the environment of N at 450°C with a radio frequency [RF] power of 180 mW/ cm2 The ratio of SiH4:NH3 is varied The flow rate of NH3 is fixed at 200 sccm, and the flow rate of SiH4 is varied...

Ngày tải lên: 21/06/2014, 17:20

... with the objective of evaluating the electrochemical properties of the counter electrodes and the energy conversion efficiencies of cells Figure shows the Bode phase plots of the DSSCs with graphenes, ... reduction in dyesensitized solar cells Electrochem Commun 2008, 10:1087-1089 Koo B-K, Lee D-Y, Kim H-J, Lee W-J, Song J-S, Kim H-J: Seasoning effect of dye-sensitized solar cells with different counter ... thickness of approximately 30 μm The mesoporous TiO2 film was then immersed in a solution of the N-719 dye (Ruthenizer 535-bisTBA, Solaronix, Aubonne, Switzerland) with a concentration of 0.5 mmol/L...

Ngày tải lên: 21/06/2014, 17:20

... Because of this reason, the film with 3.5 vol.% of 1,8-octanedithiol exhibited the best device performances in this work Conclusions The performance characteristics of BHJ polymer solar cells based ... properties of composite polymer/fullerene films for organic solar cells Adv Funct Mater 2005, 15:1193-1196 14 Padinger F, Rittberger RS, Sariciftci NS: Effects of postproduction treatment on plastic solar ... Origin of the open circuit voltage of plastic solar cells Adv Funct Mater 2001, 11:374-380 Lee W, Shin S, Han SH, Cho BW: Manipulating interfaces in a hybrid solar cell by in situ photosensitizer...

Ngày tải lên: 21/06/2014, 17:20

... Improvement of efficiency of dye-sensitized solar cells based on analysis of equivalent circuit Chem 2006, 182:296-305 Figure Preparation of the ZrO2 nanofiber Figure FE-SEM images of (a) TiO2 ... efficiency of dye-sensitized solar cells, we introduced zirconia [ZrO2] nanofibers into a mesoporous titania [TiO2] photoelectrode The photoelectrode consists of a few weight percent of ZrO2 nanofibers ... efficiency of dye-sensitized solar cells Electrochimica Acta 2010, 55:54995505 Seigo Ito, Takayuki Kitamura, Yuji Wada, Shozo Yanagida: Facile fabrication of mesoporous TiO2 electrodes for dye solar cells: ...

Ngày tải lên: 21/06/2014, 17:20

... nanocombs electrode thin films Inset of (b) exhibits the surface morphology of the comblike structures after the desorption of dye Fig Nyquist plots of the impedance data of ZnO nanocomb-based DSSCs Inset ... interface of ZnO nanocombs and TCO [RZnO/TCO], is the capacitance of accumulation (of e-) layer of the ZnO nanocombs [CACC] and CSC space charge capacitance 123 1008 TCO (RZnO/TCO), the capacitance of ... conversion efficiency of *0.68% with a fill factor of 34%, short-circuit current of 3.14 mA/cm2 and open-circuit voltage of 0.671 V This research opens a new way to utilize various kinds of ZnO nanostructures...

Ngày tải lên: 21/06/2014, 20:20

... effect of a thin compact TiO2 film on FTO substrate on the solar cell performance of ZnO array film, it was prepared at room temperature by using reactive DC magnetron sputtering Preparation of ZnO ... substrate The effect of the morphology and density of ZnO nanowire arrays on their DSSC performance was investigated, as shown in Fig 3, while the parameters of dyesensitized solar cell based on ... of ZnO Seeds on FTO Substrates In order to study the effect of ZnO crystal seed particles on the morphology and solar cell performance of ZnO array film, they were coated onto the FTO substrates...

Ngày tải lên: 22/06/2014, 00:20

... Displaying the icon of Surya — the Sun god; ancient emblem of the dynasty of Mewar (Udaipur, Rajasthan, India) kings, along with solar Coronal Mass Ejections and prominences FUNDAMENTALS OF SOLAR ASTRONOMY ... guilty of the fact that in this list of solar observatories we have not been able to include the enormous contribution being made by amateur solar astronomers In Chapter 3, some of the basics of solar ... Evaluating Solar Seeing 6.2 Determination of Fundamental Solar Parameters 6.2.1 Solar Parallax and Distance 6.2.2 Solar Mass 6.2.3 Solar Diameter, Density and Surface Gravity 6.2.4 Solar Luminosity...

Ngày tải lên: 03/07/2014, 16:09