dye sensitized nanostructured zno electrodes for solar cell applications

... for the solar cell application It is very interesting to note that the SRSO/SiN x annealed for a very short time of at 1000°C is 1.43 times more intense than the SRSO/SiO structure annealed for ... optical properties This set of above-mentioned results paves the way for the fabrication of novel structures for solar cell device applications similar to the one recently reported by Di et al [20] ... Perez-Wurfl I, Conibeer G, Green MA: “Formation and photoluminescence of Si quantum dots in SiO2/Si3N4 hybrid matrix for all Si tandem solar cells” Sol Energy Mater Sol Cells 2010, 94:2238 doi:10.1186/1556-276X-6-156...

Ngày tải lên: 21/06/2014, 05:20

... enhanced solar cell performance This can be indirectly reflected by the high JSC of the solar cell mentioned later Figure shows the current density–voltage (J–V) characteristic curves of the solar cells ... greatly extend their applications, not only in solar cells, but also the electrooptical devices for military and photodiodes to flat panel 123 displays [16, 29] Besides their most excellent antireflection ... in solar cell Figure 4a demonstrates the optical image of the fabricated solar cell recorded by a digital camera The black area indicates the PASiNP arrays, and the white block lines stand for...

Ngày tải lên: 21/06/2014, 07:20

... (module and system cost) Excellent passivation of the front and rear surfaces becomes imperative for achieving higher efficiency of c-Si wafer solar cells, especially for cells with reduced thickness ... (239.5 cm2) p-type Si Al-LBSF solar cells and their performance is investigated using quantum efficiency and 1-Sun I-V measurements Screen-printed Al-LBSF solar cells with AlOx/SiNx rear surface ... either positive or negative fixed insulator charge) for homojunction c-Si solar cell applications 24 Table 2.2: Cleaning sequence used for the Si wafers processed in this thesis 29 Table...

Ngày tải lên: 09/09/2015, 11:08

... was achieved for patterned ZnO nanowire dye sensitized solar cell through enhanced light scattering and charge collection However, the increase in efficiency of dye sensitized solar cell when graphene ... photoreduction of GO by ZnO nanorods [5] 71 Figure 4.5 – Schematic diagram of an assembled dye sensitized solar cell 73 Figure 4.6 – Diagram of an actual dye sensitized solar cell fabricated ... 4.1 Conclusion 63 Graphene -ZnO composite Dye Sensitised Solar Cell 66 Introduction 66 4.1.1 Zinc Oxide Dye Sensitized Solar Cell 66 4.1.2 Photoreduction of...

Ngày tải lên: 07/10/2015, 10:10

... increased from 100 to 200 W Conclusions We demonstrate a formation method of an a-Si1-xCx passivation layer for Si solar cells The method was performed by RF magnetron co-sputtering with a Si target ... changing the Si target power Therefore, we could conclude that the RF magnetron co-sputtering method for SiC can deposit a thin film passivation layer for solar cells with various compositional ... IA, Hashizume K, Miyajima S, Yamada A, Konagai M: Wide-gap a-SiC:H solar cells with graded absorption layer for triple cell applications In Conference Record of the 33rd IEEE PVSC 2008: May 11-16...

Ngày tải lên: 20/06/2014, 23:20

... the solar cell performance as compared to solar cell w/SLAR structure To investigate the performance of silicon nitride SWS before fabricating on a real silicon solar cell, we simulated the solar ... (JSC), open circuit voltage (VOC) and efficiency (g) for a solar cell structure based on the standard PC1D template for a low cost silicon solar cell The silicon material was set to p-type with resistivity ... 0.8% can be seen for silicon solar cell with silicon nitride SWS over a cell with single layer silicon nitride ARCs and only 0.3% less in efficiency than the DLAR coated solar cell, which is believed...

Ngày tải lên: 22/06/2014, 00:20

... resolution and accuracy of quantitative EBIC for the extraction of SRV for solar cells vii viii Advanced Electron-Beam Based Techniques for Solar Cell Characterization List of Figures Figure ... pF xi xii Advanced Electron-Beam Based Techniques for Solar Cell Characterization The values assigned for each parameter are typical for solar cells with a sample size of about cm2 ... (IEBIC/Ibeam) for the solar cell with AlOx/SiNx passivation Surface recombination velocity is 2.8 × 105 cm/s 126 xiii xiv Advanced Electron-Beam Based Techniques for Solar Cell Characterization...

Ngày tải lên: 09/09/2015, 11:08

... Cell testing of optimised PNS electrodes tive electrodes, and an AGM design with glass microfibre separators The cells were formed with 1.240 grcm3 density acid After the formation, all the cells ... temperatures Tests have been performed with single electrodes and as plate groups and real cells, comparing the performance of PNS grids with standard plates for EV applications Table shows the ... The performance of negative electrodes has been tested in single cells with two positive plates and one negative plate ŽPNS and conventional grids for EV application In all cases, the cell was...

Ngày tải lên: 05/07/2014, 21:20

... operating fuel cell voltage (Vcell) is therefore the thermodynamic cell potential reduced by the sum of the overpotentials and the product of internal resistance and current (I) Vcell = Ecell - | η ... With such a unifying understanding for various systems, one can predict the catalyst performance and provide the guidelines for a practical catalyst design for the specific fuel molecule A cross ... hydrated form H2C(OH)2, CH3CHO and CH3CH(OH)2, CH3COOH, CH3OH, CH3CH2OH For monometallic Pt in acidic condition, for example, current density per unit Pt mass can be improved by suppressing the formation...

Ngày tải lên: 28/09/2015, 13:38

... Fourier transform infrared spectroscopy (FTIR), electrokinetic analysis were used for the characterization of surface chemistry of the modified polymer and atomic force microscopy (AFM) for the study ... Instrument (Anton Paar, Austria) Samples were placed inside a cell with adjustable gap in contact with the electrolyte (0.001 mol dm-3 KCl) For each measurement, a pair of samples with the same top ... 5.10-3 mol l-1) for h In a control experiment, the etching of the polymer surface by methanol was also examined during 2-h exposure Then the modified PET samples were immersed for h into freshly...

Ngày tải lên: 20/06/2014, 22:20

... graphene for transparent counter electrodes in dye- sensitised solar cells Electron Lett 2011, 47:281-283 Choi H, Kim H, Hwang S, Han Y, Jeon M: Graphene counter electrodes for dye- sensitized solar cells ... 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 electrodes ... B, Grätzel M: A low-cost, high-efficiency solar cell based on dyesensitized colloidal TiO2 films Nat 1990, 353:737-740 Grätzel M: Dye- sensitized solar cells J Photochem Photobiol C: Photochem...

Ngày tải lên: 20/06/2014, 23:20

... graphene for transparent counter electrodes in dye- sensitised solar cells Electron Lett 2011, 47:281-283 Choi H, Kim H, Hwang S, Han Y, Jeon M: Graphene counter electrodes for dye- sensitized solar cells ... 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 electrodes ... B, Grätzel M: A low-cost, high-efficiency solar cell based on dyesensitized colloidal TiO2 films Nat 1990, 353:737-740 Grätzel M: Dye- sensitized solar cells J Photochem Photobiol C: Photochem...

Ngày tải lên: 21/06/2014, 17:20

... of desorbed dye obtained from the ZnO electrodes by dipping the ZnO nanocombs electrode in 0.1 mM NaOH solution for 10 It was observed that low dye absorption (*3.23 10-8 mol/cm2) by ZnO nanocombs ... over the dyeadsorbed ZnO nanocombs electrode, and the edges of the cell were sealed with 60-lm thick sealing sheet (SX 117060, Solaronix) Sealing was accomplished by pressing the two electrodes ... -dicarboxylato)-ruthenium (II) bis-tetrabutylammonium (N719, Solaronix) at room temperature for h The dyeadsorbed ZnO nanocombs thin-film electrodes were then rinsed with acetonitrile and dried under...

Ngày tải lên: 21/06/2014, 20:20

... … 31 1.6 Stability of dye- sensitized solar cell ……………………………….… ……………… 32 1.7 Solid-state dye- sensitized solar cell …………………………… …………… …… 34 iii 1.8 Dye- sensitized solar cell efficiency ……… ... outlining various processes of dye- sensitized solar cell 1.4.2 Solar cell performance parameters In order to compare and ascertain the performance of various solar cells, a few parameters are defined ... copolymer, which can give solar conversion efficiencies up to % [16-17] 1.4 Dye- sensitized solar cell (DSSC) Higher costs of silicon solar cells have forced researchers to look for new low cost materials...

Ngày tải lên: 10/09/2015, 15:49

... Cao GZ: ZnO Nanostructures for DyeSensitized Solar Cells Adv Mater 2009, 21:4087 Weintraub B, Wei YG, Wang ZL: Optical Fiber/Nanowire Hybrid Structures for Efficient Three-Dimensional Dye- Sensitized ... and dye- sensitized solar cells Nanotechnology 2007, 18:065707 Park JH, Lee TW, Kang MG: Growth, detachment and transfer of highlyordered TiO2 nanotube arrays: use in dye- sensitized solar cells ... Flexible Dye- Sensitized Solar Cells J Phys Chem C 2009, 113:14028 Zhu K, Nathan RN, Alexander M, Arthur JF: Enhanced charge-collection efficiencies and light scattering in dye- sensitized solar cells...

Ngày tải lên: 21/06/2014, 06:20

... 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: ... Influence of electrolyte in transport and recombination in dye- sensitized solar cells studied by impedance spectroscopy Solar Ener Mat Solar Cells 2005, 87:117-131 10 Naoki Koide, Ashraful Islam, ... Increases in solar conversion efficiencies of the ZrO2 nanofiber-doped TiO2 photoelectrode for dye- sensitized solar cells Jiao Wang1, En Mei Jin1, Ju-Young Park2,...

Ngày tải lên: 21/06/2014, 17:20

... Optically transparent cathode for dye- sensitized solar cells based on graphene nanoplatelets ACS Nano 2011, 5:165-172 20 Akhavan O: The effect of heat treatment on formation of graphene thin films ... explosive gas In this work, we present a green and controllable approach for the in-situ reduction of GO in a dye- sensitized solar cell [DSSC] assembly The GO film was fabricated in the DSSC as a counter ... graphene oxide; reduction; photoelectrochemical; J-V curve; dye- sensitized solar cells Introduction Nowadays chemical conversion of solar energy has attracted considerable attention [1-3] Graphene...

Ngày tải lên: 21/06/2014, 17:20

... electrode for CdS/CdSe -sensitized solar cell With the cell parameters of Jsc = 10.68 mA cm-2, Voc = 497 mV, FF = 0.581 and g = 3.08%, QDSC with nano-Cu2S/C composite CE exhibits superior performance ... is an order higher than the present one, completely competent for the application in high-efficiency quantum-dot -sensitized solar cells Conclusion Cu2S nanoparticles were deposited on the surface ... Fig I–V characteristics for QDSCs with counter electrodes of different Cu2S deposition time (Under illumination of AM 1.5) Fig SEM images of the graphite paper surface a before and b after h solvent...

Ngày tải lên: 21/06/2014, 18:20

... plots for ZnO DSSCs based on nanowire arrays prepared by different seed preparation methods Table Parameters of dye- sensitized solar cell based on ZnO nanowire array films with different ZnO seed ... Current–voltage curves for ZnO DSSCs based on nanowire arrays grown onto the bare and TiO2-coated FTO substrates Table Parameters of dye- sensitized solar cell based on ZnO nanowire array films ... shown in Fig 3, while the parameters of dyesensitized solar cell based on ZnO nanowire array films are listed in Table Although the densities of nanowire arrays for samples B1, B2 and B3 were lower...

Ngày tải lên: 22/06/2014, 00:20

... [1]Wikipedia.org, Dye Sensitized Solar Cell http://en.wikipedia.org/wiki /Dye- sensitized_ solar_ cell [2] Michael Grätzel (2003), Review Dye- sensitized solar cells, Laboratory for Photonics and ... cặp oxi hóa khử dung dịch điện phân Nhờ trì h pi gọi Dye Sensitised Solar Cell (DSC) Khi điện cực đưa khỏi dung dịch Dye lúc lớp TiO2 phủ lớp Dye làm cho chúng dễ hấp thụ h sá g hơ Tiếp theo ta ... KHOA KHOA HỌC VẬT LIỆU BỘ MÔN VẬT LIỆU VÀ LINH KIỆN MÀNG MỎNG  Đề tài: DYE SENSITIZED SOLAR CELL Chu g h: Vật iệu M g ỏng CÁN BỘ HƯỚNG DẪN: Th.S Ngô Hả Đă SINH VIÊN THỰC HIỆN: La...

Ngày tải lên: 16/11/2014, 17:01