... of thin- film µc-Si:H solarcells 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- filmsolarcells This thesis mainly focuses on the study of improving the efficiency of µc-Si:H thinfilm solarcellsIn Chapter 2, some background information ... absorber layer for thin- filmsolarcells Hence, un-doped (so called intrinsic) films have to be used This is the reason why thin- film silicon solarcells (i.e a-Si:H and µc-Si:H solar cells) have a...
... this international effort, by investigating polycrystalline silicon thin- filmsolarcells on glass 1.3 Polycrystalline Si thin- filmsolarcells The polycrystalline Si (poly-Si) thin- filmsolar ... main thin- filmsolar cell technologies is given Three main technological methods to produce poly-Si for poly-Si thin- filmsolarcells are introduced The rationale for implementing light trapping ... xvii Chapter Introduction 1.1 Motivation for solarcells 1.2 Thin- filmsolar cell technologies 1.3 Polycrystalline Si thin- filmsolarcells 1.3.1 Solid...
... 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 solarcells ... POLYCRYSTALLINE SILICON THIN- FILMSOLARCELLS 2.1 Background and Current Status The most efficient polycrystalline silicon (poly-Si) thin- film mini-module on glass was achieved by CSG Solarin 2007, ... within the grain [27] in the AIC-based poly-Si thin- filmsolarcells on alumina substrate One of their findings is that the 3 grain boundary is electrically active, contradicting the conventional...
... silicon wafer silicon cells, thinfilm technologies require significantly less active materials to build solarcells The main advantages of thinfilmcells are reduced manufacturing cost, potentially ... for productive and efficient research work in optimizing thin- filmsolarcells 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...
... silicon wafer silicon cells, thinfilm technologies require significantly less active materials to build solarcells The main advantages of thinfilmcells are reduced manufacturing cost, potentially ... for productive and efficient research work in optimizing thin- filmsolarcells 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...
... material for thin- filmsolarcells Nevertheless, there is a substantial R&D effort being put into developing thin- filmsolarcells based on crystalline Si The thinfilm of crystalline Si can be ... multicrystalline Si modules reduces the impact of the higher BOS costs P.2 THINFILM MATERIALS FOR SOLARCELLS P.2.1 Thin film: definition The reader might remark at this point that the term thinfilmsolar ... over the different related thinfilmsolar cell technologies xxii PREFACE P.3.1 Crystalline silicon thinfilmsolarcells There are a large variety of crystalline Si thinfilm approaches The one...
... selenization remain the main methods in the manufacture of CIGS solarcellsIn 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 solarcells are deposited ... a-Si/μc-Si ThinFilmSolarCells 335 Fan Yang Chapter 17 Novel Deposition Technique for Fast Growth of Hydrogenated Microcrystalline Silicon Thin- Film for Thin- Film Silicon SolarCells 359 Jhantu...
... Thus, sophisticated light trapping is an essential requirement for the design of thin- filmsolarcells (Rech et al., 2002) Enhanced light-trapping inthinfilmsolarcells is typically achieved ... photocurrents in Cu (In, Ga)Se2 thinfilmsolarcells 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...
... 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 thinfilmsolarcells 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 Solarcells Using...
... 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 SolarCells – 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...
... utilized as transparent electrodes in many types of thinfilmsolar cells, such as a-Si thinfilmsolar cells, CdTe thinfilmsolar cells, and CIGS thinfilmsolarcells It should be mentioned that, ... Polycrystalline silicon thinfilmsolar cells: µm grains Polycrystalline silicon thinfilmsolarcellsin superstrate configuration have been fabricated industrially for some years by the company CSG in ... followed by silicon thinfilm cells, that is amorphous silicon (a-Si) cells or tandem cells consisting of a-Si and nanocrystalline silicon (µc-Si) For a review on thinfilmsolarcellsin general see...
... 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- filmsolarcells Advances in OptoElectronics, Vol 2007, Article ID 36970 Crystalline Silicon ThinFilmSolarCells 157 Brazil, I & Green, M.A (2010) Investigating polysilicon thinfilm structural ... crystallizing atoms is much higher in the melt than in a-Si so that correct placement is easier The highest efficiencies achieved insolarcells prepared using the 148 SolarCells – Thin- Film Technologies...
... replacement of conventional building materials with thin- filmsolarcellsIn this study, an evaluation is carried out on the performance of the thin- filmsolar cell through long-term monitoring of the ... building This system is known as a building integrated photovoltaic system (BIPV) The thin- filmsolar 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 SolarCells – Thin- Film Technologies Solar Array...
... 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 SolarCells – Thin- Film Technologies Fig 20 Correlation between solar insolation and ... 205 206 SolarCells – 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...
... Cu (In, Ga)Se2 thin films 244 SolarCells – 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 thinfilm 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 solarcells Cu (In, Ga)Se2 and CdTe PV devices are obtained...
... structure 278 SolarCells – Thin- Film Technologies 2.1 Detailed one-dimensional computer modeling of HIT solar cells: Pioneering work in detailed electrical modeling of a-Si:H solarcells was done ... Rudman, M Kalin, H Zogg, A Tiwari “ CdTe/CdS and CIGS thinFilmSolar Cells. ” 1st SWH International Conference 56-60 (2003), [28] A Hepp et al “Ultra-Lightweight Hybrid Thin- FilmSolar cells: A ... to thinfilm 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...
... efficiency single- and polycrystalline silicon solarcells 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 SolarCells – Thin- Film Technologies solarcells , 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)...
... for years before becoming thinfilmsolar equipment providers 344 SolarCells – Thin- Film Technologies The general process flow of thinfilm panel fabrication is shown in the diagram of Fig ... crystalline cells Many thinfilm materials can be used for PV cells, e.g., Si, CdTe, CIGS or the emerging organic/polymeric materials Comparing to other materials, thinfilm Si, including amorphous ... Mitsubishi Heavy Industries, Ltd, etc The true burst of Si thinfilmsolar cells, on the other hand, came after 2007 with the “turnkey” (ready to use) thin- filmsolar manufacturing equipments introduced...
... panel yield, the final FEOL step involves removing cell shunts by reverse biasing the cells, or shunt busting Shunting in Si thinfilmsolarcells refers to high leakage current in reverse bias, ... Microcrystalline Silicon Thin- Film for Thin- Film Silicon SolarCells 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 SolarCells 375 By supplying the sufficient flux of SiHxCly at a high Ts of 400˚C, the termination of dangling bond is accelerated with enhancing...
... were investigated The CdS thin films with 100 nm thickness were deposited by CSD using CdCl2 400 SolarCells – Thin- Film Technologies cadmium chloride solution Thin polycrystalline CdS films ... characters required to solarcells strongly depend on its applications In particular, thinfilmsolarcells are promising for terrestrial applications, because thinfilmsolarcells are more advantageous ... conditions for polycrystalline or smooth solid films 382 SolarCells – Thin- Film Technologies Deposition of CdS thin films and structures based on 2.1 Fabrication methods The thinfilm semiconductor...