nanostructures in conventional thin film solar cells

... of thin- film µc-Si:H solar cells having a “baseline” crystallinity in the range of 50 – 60 % of the µm thick intrinsic µc-Si:H absorber layer (b) One-sun I-V curve of a thin- film µc-Si:H solar ... efficiency of single-junction Si thin- film solar cells This thesis mainly focuses on the study of improving the efficiency of µc-Si:H thinfilm solar cells In Chapter 2, some background information ... absorber layer for thin- film solar cells Hence, un-doped (so called intrinsic) films have to be used This is the reason why thin- film silicon solar cells (i.e a-Si:H and µc-Si:H solar cells) have a...

Ngày tải lên: 09/09/2015, 11:16

... this international effort, by investigating polycrystalline silicon thin- film solar cells on glass 1.3 Polycrystalline Si thin- film solar cells The polycrystalline Si (poly-Si) thin- film solar ... main thin- film solar cell technologies is given Three main technological methods to produce poly-Si for poly-Si thin- film solar cells are introduced The rationale for implementing light trapping ... xvii Chapter Introduction 1.1 Motivation for solar cells 1.2 Thin- film solar cell technologies 1.3 Polycrystalline Si thin- film solar cells 1.3.1 Solid...

Ngày tải lên: 09/09/2015, 11:16

... Since this achievement in 2007, researchers working on thin- film poly-Si have been using the results obtained by CSG Solar as a benchmark to improve their respective thin- film poly-Si solar cells ... POLYCRYSTALLINE SILICON THIN- FILM SOLAR CELLS 2.1 Background and Current Status The most efficient polycrystalline silicon (poly-Si) thin- film mini-module on glass was achieved by CSG Solar in 2007, ... within the grain [27] in the AIC-based poly-Si thin- film solar cells on alumina substrate One of their findings is that the 3 grain boundary is electrically active, contradicting the conventional...

Ngày tải lên: 10/09/2015, 09:23

... silicon wafer silicon cells, thin film technologies require significantly less active materials to build solar cells The main advantages of thin film cells are reduced manufacturing cost, potentially ... for productive and efficient research work in optimizing thin- film solar cells as well as for testing them in production lines during the manufacturing process Therefore, a costeffective but ... that thin- film PV technology will outperform the current solar PV technologies in terms of achieving the cost parity objectives [4] Amorphous silicon based thin- film PV modules have been in the...

Ngày tải lên: 04/10/2015, 15:45

... silicon wafer silicon cells, thin film technologies require significantly less active materials to build solar cells The main advantages of thin film cells are reduced manufacturing cost, potentially ... for productive and efficient research work in optimizing thin- film solar cells as well as for testing them in production lines during the manufacturing process Therefore, a costeffective but ... that thin- film PV technology will outperform the current solar PV technologies in terms of achieving the cost parity objectives [4] Amorphous silicon based thin- film PV modules have been in the...

Ngày tải lên: 13/10/2015, 15:57

... material for thin- film solar cells Nevertheless, there is a substantial R&D effort being put into developing thin- film solar cells based on crystalline Si The thin film of crystalline Si can be ... multicrystalline Si modules reduces the impact of the higher BOS costs P.2 THIN FILM MATERIALS FOR SOLAR CELLS P.2.1 Thin film: definition The reader might remark at this point that the term thin film solar ... over the different related thin film solar cell technologies xxii PREFACE P.3.1 Crystalline silicon thin film solar cells There are a large variety of crystalline Si thin film approaches The one...

Ngày tải lên: 21/12/2016, 10:27

... selenization remain the main methods in the manufacture of CIGS solar cells In the first thin- film CuInSe2 solar cells, heterojunction was made by deposition of CdS on CuInSe2 thin film, which also ... a modules, Thin- Film Photovoltaics as a Mainstream of Solar Power Engineering in thin- film technology many cells are simultaneously made and formed as a module The layers of solar cells are deposited ... a-Si/μc-Si Thin Film Solar Cells 335 Fan Yang Chapter 17 Novel Deposition Technique for Fast Growth of Hydrogenated Microcrystalline Silicon Thin- Film for Thin- Film Silicon Solar Cells 359 Jhantu...

Ngày tải lên: 19/06/2014, 11:20

... Thus, sophisticated light trapping is an essential requirement for the design of thin- film solar cells (Rech et al., 2002) Enhanced light-trapping in thin film solar cells is typically achieved ... photocurrents in Cu (In, Ga)Se2 thin film solar cells J Appl Phys 82, 3572-3575 Neumann, H., Tomlinson, R.D (1990) Relation between electrical properties and composition in CuInSe2 single crystals Sol Cells ... Photovoltaic Solar Energy Conversion J Appl Phys 27, 777-784 Thin- Film Photovoltaics as a Mainstream of Solar Power Engineering 37 Mauk, M., Sims, P., Rand, J., and Barnett (2003) A Thin silicon solar cells...

Ngày tải lên: 19/06/2014, 11:20

... of In and Al doped Zno thin films for CuInSe2 solar cells, Thin Solid Films 434 20-23 Machado G., Guerra D.N., Leinen D., Ramos-Barrado J.R Marotti R.E., Dalchiele E.A., (2005), Idium doped zinc ... on a ptype Cu2O thin films We selected ZnO as an n-type semiconductor ZnO is a transparent oxide that is widely used in many different applications, including thin film solar cells The p-n junction ... oxide thin films obtained by electrodeposition ,Thin Solid Films 490 124-131 Minami T.,.Tanaka H, Shimakawa T., Miyata T., Sato H., (2004) High-Efficiency Oxide Heterojunction Solar cells Using...

Ngày tải lên: 19/06/2014, 11:20

... the Cu2O thin films are changed to p-type when the films are annealed at 300 oC CuO thin films are photoactive and p-type in a PEC containing 0.1 M sodium acetate 100 Solar Cells – Thin- Film Technologies ... that single phase Cu2O thin films are converted to two phase Cu2O and CuO composit films with increasing the annealing temperature Single phase CuO thin films can be obtained by annealing at ... annealing effects of the electrodeposited Cu2O thin films in air were investigated in order to obtain a single phase CuO thin films on Ti substrate Cu2O thin films on Ti substrates were prepared under...

Ngày tải lên: 19/06/2014, 11:20

... utilized as transparent electrodes in many types of thin film solar cells, such as a-Si thin film solar cells, CdTe thin film solar cells, and CIGS thin film solar cells It should be mentioned that, ... Polycrystalline silicon thin film solar cells: µm grains Polycrystalline silicon thin film solar cells in superstrate configuration have been fabricated industrially for some years by the company CSG in ... followed by silicon thin film cells, that is amorphous silicon (a-Si) cells or tandem cells consisting of a-Si and nanocrystalline silicon (µc-Si) For a review on thin film solar cells in general see...

Ngày tải lên: 19/06/2014, 11:20

... demonstrating large grains in the 100 µm range in 450 nm thick films With the diode laser we can go down to 100 nm thin films In these the grains size is in the 30 µm range A further problem with thin ... thin- film solar cells Advances in OptoElectronics, Vol 2007, Article ID 36970 Crystalline Silicon Thin Film Solar Cells 157 Brazil, I & Green, M.A (2010) Investigating polysilicon thin film structural ... crystallizing atoms is much higher in the melt than in a-Si so that correct placement is easier The highest efficiencies achieved in solar cells prepared using the 148 Solar Cells – Thin- Film Technologies...

Ngày tải lên: 19/06/2014, 11:20

... replacement of conventional building materials with thin- film solar cells In this study, an evaluation is carried out on the performance of the thin- film solar cell through long-term monitoring of the ... building This system is known as a building integrated photovoltaic system (BIPV) The thin- film solar cell can also provide the advantage of heat insulation and shading when incorporated into ... profile Solar Array Output Current [A] 20 15 10 0 10 20 30 Solar Array output voltage [V] Fig 27 LISA Pathfinder Solar array, V-I curve 40 50 60 184 Solar Cells – Thin- Film Technologies Solar Array...

Ngày tải lên: 19/06/2014, 11:20

... an increase of the inclined angle above 30 º In particular, at inclined slopes above 60 º there was a steep decline of power performance with the increase of the inclined slope, as shown in Figure ... power efficiency in case of amorphous PV as opposed to crystalline silicon solar cell (c-Si solar cell) 204 Solar Cells – Thin- Film Technologies Fig 20 Correlation between solar insolation and ... 205 206 Solar Cells – Thin- Film Technologies 6.4 Power efficiency by the solar incidence angle The PV efficiencies of each inclination angle under different solar incidence angle and solar irradiance...

Ngày tải lên: 19/06/2014, 11:20

... Cu (In, Ga)Se2 thin films 244 Solar Cells – Thin- Film Technologies Cu (In, Ga)Se2 thin films were grown with different Ga and Cu ratios (Ga/ (In+ Ga) = 0.28, 0.34 and 0.35 respectively and Cu/ (In+ Ga) ... contact for thin film CdTe solar cells, e.g Cu, Au, Cu/Au, Ni, Ni/Al, Sb/Al, Sb/Au [12] Several thin- film PV companies are actively involved in commercializing thin- film PV technologies In the area ... transport In this way the small grains disappear and the CdS/CdTe interface is reorganized Processing of Cu (In, Ga)Se2 and CdTe thin films into solar cells Cu (In, Ga)Se2 and CdTe PV devices are obtained...

Ngày tải lên: 19/06/2014, 11:20

... structure 278 Solar Cells – Thin- Film Technologies 2.1 Detailed one-dimensional computer modeling of HIT solar cells: Pioneering work in detailed electrical modeling of a-Si:H solar cells was done ... Rudman, M Kalin, H Zogg, A Tiwari “ CdTe/CdS and CIGS thin Film Solar Cells. ” 1st SWH International Conference 56-60 (2003), [28] A Hepp et al “Ultra-Lightweight Hybrid Thin- Film Solar cells: A ... to thin film base production only Moreover the diameters of single grains obtained by the author are significantly lower than by ICSVT technology Screen – printing and sintering as the last investigated...

Ngày tải lên: 19/06/2014, 11:20

... efficiency single- and polycrystalline silicon solar cells Computer Modeling of Heterojunction with Intrinsic Thin Layer “HIT” Solar Cells: Sensitivity Issues and Insights Gained 301 using ACJ-HIT ... Summonte, C and Rubinelli, F.(2003), Optimization of ITO layers for applications in a-Si/c-Si heterojunction 300 Solar Cells – Thin- Film Technologies solar cells , Thin Solid Films, Vol 425, No ... and Chatterjee, P (2010) , Insights gained from computer modeling of heterojunction with instrinsic thin layer ‘‘HIT’’ solar cells, Solar energy Materials and Solar Cells, Vol 94, (April, 2010)...

Ngày tải lên: 19/06/2014, 11:20

... for years before becoming thin film solar equipment providers 344 Solar Cells – Thin- Film Technologies The general process flow of thin film panel fabrication is shown in the diagram of Fig ... crystalline cells Many thin film materials can be used for PV cells, e.g., Si, CdTe, CIGS or the emerging organic/polymeric materials Comparing to other materials, thin film Si, including amorphous ... Mitsubishi Heavy Industries, Ltd, etc The true burst of Si thin film solar cells, on the other hand, came after 2007 with the “turnkey” (ready to use) thin- film solar manufacturing equipments introduced...

Ngày tải lên: 19/06/2014, 11:20

... panel yield, the final FEOL step involves removing cell shunts by reverse biasing the cells, or shunt busting Shunting in Si thin film solar cells refers to high leakage current in reverse bias, ... Microcrystalline Silicon Thin- Film for Thin- Film Silicon Solar Cells Jhantu Kumar Saha1,2 and Hajime Shirai1 1Department of Functional Material Science & Engineering, Faculty of Engineering, Saitama ... Microcrystalline Silicon Thin- Film for Thin- Film Silicon Solar Cells 375 By supplying the sufficient flux of SiHxCly at a high Ts of 400˚C, the termination of dangling bond is accelerated with enhancing...

Ngày tải lên: 19/06/2014, 11:20

... were investigated The CdS thin films with 100 nm thickness were deposited by CSD using CdCl2 400 Solar Cells – Thin- Film Technologies cadmium chloride solution Thin polycrystalline CdS films ... characters required to solar cells strongly depend on its applications In particular, thin film solar cells are promising for terrestrial applications, because thin film solar cells are more advantageous ... conditions for polycrystalline or smooth solid films 382 Solar Cells – Thin- Film Technologies Deposition of CdS thin films and structures based on 2.1 Fabrication methods The thin film semiconductor...

Ngày tải lên: 19/06/2014, 11:20