Post crystallisation treatment and characterisation of polycrystalline silicon thin film solar cells on glass
Post crystallisation treatment and characterisation of polycrystalline silicon thin film solar cells on glass
... POST- CRYSTALLISATION TREATMENT AND CHARACTERISATION OF POLYCRYSTALLINE SILICON THIN- FILM SOLAR CELLS ON GLASS HIDAYAT (B Eng (Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... Fabrication and Characterisation of Polycrystalline Silicon Thin- film Solar Cells 2.1 Background and Current Status 2.2 Challenges for the Progress of Poly-Si Thin- film Solar Cells on Glass ... Determination of dopant concentration profiles and p-n junction location is crucial for the development of efficient poly-Si thin- film solar cells on glass The determination of the junction location is one...
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Investigation of advanced light trapping concepts for plasma deposited solid phase crystallised polycrystalline silicon thin film solar cells on glass
... INVESTIGATION OF ADVANCED LIGHT TRAPPING CONCEPTS FOR PLASMA- DEPOSITED SOLID PHASE CRYSTALLISED POLYCRYSTALLINE SILICON THIN- FILM SOLAR CELLS ON GLASS YING HUANG (M.Sc., ... removal of the reaction product, is a promising light trapping method for the poly-Si on glass thin- film PV technology To achieve good light trapping for poly-Si thin- film solar cells on glass, ... Crystalline silicon on glass (CSG) thin- film solar cell modules, Solar Energy, 77 (2004) 857-863 [17] A.G Aberle, Progress with polycrystalline silicon thin- film solar cells on glass at UNSW, Journal of...
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Interface studies for microcrystalline silicon thin film solar cells deposited on TCO coated planar and textured glass superstrates
... µc-Si:H thin- film solar cells deposited on TCO- coated planar glass superstrates 45 4.1 Establishing a baseline for thin- film µc-Si:H solar cells at SERIS: No buffer layer (reference cells) ... Abstract: An interface optimization for microcrystalline silicon (µc-Si:H) thin- film solar cells on glass superstrates is undertaken, focusing on the two most important interfaces of this type of solar ... p/i interface of thin- film µc-Si:H solar cells on the solar cell performance 73 5.1 Requirements for the buffer layers 73 5.2 Modelling of silicon thin- film layers and of a reference thin- film...
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Synthesis and characterisation of electrical conducting polymers co polymers based on omega functionalised 3 alkylthiophenes 5
... achieved a conductivity of 3. 3 S/cm In conclusion, graft copolymers of polythiophene and two commodity polymers, polystyrene and PMMA were formed Through trial and error the most conducting systems ... graft copolymers’ conductivity These points will be further discussed in the next section 3) The graft copolymers of polythiophene and commodity PMMA were synthesised based on a novel compound, ... conductivity and processibility of polythiophene and PMMA graft copolymers were also found to be improved compared to polystyrene and polythiophene graft copolymer The most conducting graft copolymer...
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Synthesis and characterisation of electrical conducting polymers co polymers based on omega functionalised 3 alkylthiophenes 4
... 4. 04- 4.11 (1H, m), 5.08-5. 24 (2H, dd, J 24, 9) 5. 83 (1H, m), 6. 93 (2H, m) and 7. 23 (1H, m) 13 C NMR of 11-Thiophen -3- yl-undec-1-en -3- ol 1 43 . 2; 141 .3; 128.2; 1 24. 9; 119.7; 1 14. 5; 73. 2; 37 .0; 30 .5; ... 4. 7 Table 4. 7 Summary of the peaks of the copolymers 7, 9, 10, 11 Co -polymers peaks 10 11 8o, 20o, 27o, 36 o 15o, 23. 5o, 27o, 33 .5o, 36 o, 39 o, 48 o 7o, 15o, 42 o o o o 3. 5 , , , 14o, 20o, 22o, 33 o, ... polymerisation of monomer 5), copolymer (graft copolymer of monomer 5, MMA and thiophene), copolymer 10 (graft copolymer of monomer 5, MMA and 3- butylthiophene) and copolymer 11 (graft copolymer of monomer...
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Synthesis and characterisation of electrical conducting polymers co polymers based on omega functionalised 3 alkylthiophenes 3
... 5. 73( d, 1H, J=11Hz); 6. 73( dd, 1H, J=11Hz, J=6Hz); 6. 93- 7 .37 (m, 7H) 13 C-NMR (CDCl3, ppm): 1 43. 0; 142.5; 136 .7; 136 .6; 135 .0; 131 .3; 130 .2; 128.2; 126.2; 125.0; 119.7; 1 13. 1; 112.7; 37 .3; 37 .1; 35 .6; ... Fig 3. 12 C 1s core level of XPS spectrum of copolymer The deconvoluted C 1s core level data for copolymers and Graft 100 showed similar environments to that of copolymer C 1s core level deconvolution ... Fig 3. 8 H NMR spectrum of grafted copolymer of PS and polythiophene (5) 100 3. 2 .3 FT-IR Fig 3. 9 is the IR spectra of graft copolymers 4, and the blended copolymer Fig 3. 9 IR spectra of copolymers...
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Synthesis and characterisation of electrical conducting polymers co polymers based on omega functionalised 3 alkylthiophenes 2
... 73 90 138 95 92 12 ,30 0 19,900 25 ,20 0 22 ,000 29 ,400 23 , 100 23 , 400 22 ,600 1.8 2. 0 1.8 2. 0 1.7 2. 7 1.9 2. 0 I2 doped (Scm-1) 4.7 7.9 10.4 8.4 7.5 9 .3 8 .2 7.9 HT dyads HH dyads % % 68 73 87 62 60 71 ... (30 0MHz, CDCl3/TMS): =7 .24 -7 .26 (m, 1H), 7.07-7.11 (m, 2H), 6. 92- 6.96 (m, 2H), 6.81-6.84 (m, 2H), 3. 92 -3. 96 (t, 2H), 3. 62 -3. 67 (t, 2H), 2 .30 (s, 3H), 1. 73- 1.81(m, 2H), 1. 62- 1.67(m, 2H), 1 .25 -1.46(m, ... 6 .20 , S: 13. 4, Br: 30 .1 3- ( -bromooctyl)thiophene 1H NMR for (30 0MHz, CDCl3/TMS): =7. 23 - 7 .25 (m, 1H), 6. 92- 6. 93 (m, 2H), 3. 37 -3. 42 (t, 2H), 2. 60 -2. 64 (t, 2H), 1.80-1.89 (m, 2H), 1.60-1. 72 (m, 2H),...
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Synthesis and characterisation of electrical conducting polymers co polymers based on omega functionalised 3 alkylthiophenes 1
... Graft copolymers of polythiophene and PMMA Introduction 13 1 Experiment 2 .1 Monomer synthesis 13 3 2.2 Copolymer syntheses 13 8 Result and Discussion 3. 1 Monomer synthesis and characterisation 14 0 3. 2 ... spectrum of 11 -thiophen -3- yl-undec -1- en -3- one (5) C NMR spectrum of 11 -thiophen -3- yl-undec -1- en -3- one (5) X Fig 4 .10 C1s core level of XPS spectrum of copolymer 11 Fig 4 .11 C1s core level of copolymer ... spectrum of copolymer Fig 3. 12 C 1s core level of XPS spectrum of copolymer Fig 3. 13 C 1s core level of XPS spectrum of copolymer Graft 10 0 Fig 3. 14 S 2p core level XPS spectrum of copolymer Fig 3. 15 ...
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Laser chemical processing (LCP) of poly silicon thin film
... 1.1 Thin film solar cells …………………………………………… 1.2 Doping of poly- silicon thin films……………………………… 1.3 Application of Nd:YAG laser – a literature review …………… 1.4 Laser Chemical Processing (LCP) ………… ... LASER CHEMICAL PROCESSING (LCP) OF POLY- SILICON THIN FILM SELVEN VIRASAWMY (B Eng M Eng, NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF MECHANICAL ... solar cells using this technology [9] Another silicon- based technology is poly- silicon thin film Poly- silicon (polycrystalline silicon or poly- Si) thin film is a common semiconductor material driving...
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Design, construction and testing of an i v tester for thin film solar cells and mini modules
... 2: LITERATURE REVIEW The T-Sunalyzer is designed for I- V characterization of thin- film solar cells or minimodules and determination of efficiency and other device parameters For an ideal solar ... ease of integration Thin- film PV is an important technology for building-integrated photovoltaics (BIPV), vehicle PV rooftop or solar chargers for mobile devices In the long run, it is foreseen ... technologies require significantly less active materials to build solar cells The main advantages of thin film cells are reduced manufacturing cost, potentially lighter weight, flexibility and ease of...
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Design, construction and testing of an i v tester for thin film solar cells and mini modules
... 2: LITERATURE REVIEW The T-Sunalyzer is designed for I- V characterization of thin- film solar cells or minimodules and determination of efficiency and other device parameters For an ideal solar ... ease of integration Thin- film PV is an important technology for building-integrated photovoltaics (BIPV), vehicle PV rooftop or solar chargers for mobile devices In the long run, it is foreseen ... technologies require significantly less active materials to build solar cells The main advantages of thin film cells are reduced manufacturing cost, potentially lighter weight, flexibility and ease of...
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On the solid phase crystallization for thin film silicon solar cells on glass
... silicon (a-Si:H), microcrystalline silicon (µc-Si), micro-morph tandem silicon and polycrystalline silicon (poly-Si) thin film solar cells CIGS and CdTe thin film solar cells are plagued by the ... production cost in the future Silicon based thin film solar cells on the other hand not have issues with the availability of raw materials since silicon is the second most abundant material on earth ... addition, Si is non-toxic unlike cadmium [7] Therefore silicon based thin film solar cells are highly desired The a-Si:H thin film solar cell technology is attractive for low-cost PV applications...
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Fabrication and characterisation of solid phase crystallised plasma deposited silicon thin films on glass for photovoltaic application
... FABRICATION AND CHARACTERISATION OF SOLID- PHASE CRYSTALLISED PLASMADEPOSITED SILICON THIN FILMS ON GLASS FOR PHOTOVOLTAIC APPLICATIONS AVISHEK KUMAR (B.Eng., MSc-Microelectronics) A ... of silicon and hydrogen, both of which are non-toxic and present in great abundance on earth SPC poly-Si is formed from amorphous silicon (a-Si) by a standard process of deposition of a-Si on glass ... semiconductors and as an emitter for the formation of thin- film solar cells [17, 20] The use of c-Si wafers is good for the demonstration of a concept, but it is not economical and finds no application at...
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Post-Harvest Biology and Technology of Citrus Fruits
... Clippers Used For Harvesting Citrus Fruits Delivering Bins of Citrus Fruits to Packinghouse Citrus Degreening Rooms Inside Citrus Degreening Rooms Degreening Of Citrus Fruits -Recommended ConditionsTemperature ... air changes/hr Duration of degreening required depends on maturity stage (amount of chlorophyll) in the skin of citrus fruits Washing -Dumping- Surface Drying Waxing and Fungicide Application ... ratio of Week Yes No 11/14-18 11/14- 39 42 58 11/28-12/2 11/28- 27 53 47 12/12-16 12/12- 13 63 37 Source: Ivans and Feree (1987) Respiratory Rates of Some Nonclimacteric Fruits Respiration and...
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Depression - The treatment and management of depression in adults potx
... NICE clinical guideline 90 Depression: the treatment and management of depression in adults (partial update of NICE clinical guideline 23) Ordering information You can download the following documents ... major depression, and are defined as at least one key symptom of depression but with insufficient other symptoms and/ or functional In both ICD-10 and DSM-IV In both ICD-10 and DSM-IV In ICD-10 ... medication and a high-intensity psychological intervention (CBT or IPT) 1.5.1.3 The choice of intervention should be influenced by the: • duration of the episode of depression and the trajectory of symptoms...
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