Interface engineering for highly efficient polymer solar cells

... chapter 1 Introduction 1.1 A brief overview of polymer solar cells 1.1.1 Historical background of polymer solar cells The history of polymer solar cells, or organic photovoltaics in general, is ... photovoltaic performance and device stability This work aims to develop novel interfacial materials and cost-effective methods to modify the interface for highly efficient...

Ngày tải lên: 09/09/2015, 10:08

... bands of SnO2 flowers and fibers 137   6.1.7   Proposed growth model of nanoflowers 139   6.1.8   Fabrication of solar cells and evaluation of photovoltaic properties 142   6.2   Estimation of ... Outlook and Recommendations 162     Bibliography 164   vii SUMMARY Excitonic solar cells (ESCs) such as Dye Sensitized Solar Cells (DSCs) and Organic Solar Cells...

Ngày tải lên: 12/09/2015, 10:22

... discussion The solar cells with double stack antireflection coating have better cell characteristics than those with singlelayer antireflection coating The double stack antireflection coating proves ... doi:10.1186/1556-276X-7-50 Cite this article as: Lee et al.: Stability of SiNX/SiNX double stack antireflection coating for single crystalline silico...

Ngày tải lên: 21/06/2014, 17:20

... used for metallisation of HET cells [38] Metallisation technologies for Si wafer solar cells (including HET cells) are discussed further in Section 2.6 Screen printing for HET cells and plating for ... technologies for silicon wafer solar cell metallisation The metallisation technologies are applied to silicon homojunction and amorphous silicon/ crystalli...

Ngày tải lên: 09/09/2015, 08:11

... integration into heterojunction silicon wafer solar cells and subsequently the modelling of heterojunction and hybrid heterojunction silicon wafer solar cells that utilize these films Three key ... monocrystalline/multicrystalline solar cells, thin- film solar cells, organic solar cells, tandem cells, concentrator cells and varying choice of mat...

Ngày tải lên: 09/09/2015, 11:15

... In summary, an improved surface passivation scheme using inductively coupled plasma deposited amorphous silicon suboxide thin films for heterojunction silicon wafer solar cells is successfully ... analysis of surface passivating amorphous silicon alloys for heterojunction silicon wafer solar cell applications As the narrow process window of conventional intrins...

Ngày tải lên: 09/09/2015, 11:31

... and ionic strength in determining charge collection and charge separation yields were discussed After correction of charge collection losses, it was found that even near open-circuit conditions ... Evolution of Charge Collection /Separation Efficiencies in Dye -sensitized Solar Cells upon Aging   4.1 Introduction DSCs are a promising alternative to traditional silico...

Ngày tải lên: 10/09/2015, 09:29

... 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...

Ngày tải lên: 10/09/2015, 09:31

... based on the ZnO/ QW and ZnO/ HJ solar cells: pink hatched region indicates the photoconversion improvement from ZnO/ HJ to ZnO/ QW D) Nyquist plots of ZnO/ HJ and ZnO/ QW solar cells at 0.8 V forward bias ... steps: i) growth of ZnO nanowires arrays on TCO substrates, ii) deposition of a ZnO seeding layer on the ZnO nanowire surface, and iii) growth of branched na...

Ngày tải lên: 05/03/2015, 14:37

... 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...

Ngày tải lên: 09/09/2015, 11:16

... 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 ... performance Therefore, further reduction of the reflectance will be expected from the optimization of the synthesis conditions of SiNWs For analysis of the electri...

Ngày tải lên: 16/03/2014, 15:12

... day and day 60 Transduction of CD34-pDC Semi-adherent and non-adherent cells in culture were harvested at day and transduced by LV-VSVG-PGK at an MOI of 18 TU/ml and at a fixed concentration of ... function of natural killer cells, B cells, T cells and myeloid DC [16] Human pDC not express lineage specific markers, but are characterized by the expression of HLA-D...

Ngày tải lên: 18/06/2014, 15:20

... characteristics of solar cells having (a) AZO /p-type a-SiC:H and AZO/ p+ a-SiC:H /p-type a-SiC:H front interface and (b) AZO/ptype a-SiC:H and AZO/nc-Si /p-type a-SiC:H front interface Figure Dependence ... obtained only by engineering the interface between the p-type a-SiC:H and AZO and shows that a large increase in the solar cell efficiency can be...

Ngày tải lên: 20/06/2014, 20:20

... the contact resistance To calculate the contact resistance, Mg was evaporated on the n-Si wafer, and the Ag paste was printed on the Si wafer for reference The contact resistances of Mg/ Si and Ag/Si ... A novel method for crystalline silicon solar cells with low contact resistance and antireflection coating by an oxidized Mg layer Jongh...

Ngày tải lên: 20/06/2014, 21:20

... processing of large-scale graphene Nat Nanotech 2009, 4:25-29 doi:10.1186/1556-276X-7-53 Cite this article as: Kim et al.: Fabrication and characterization of carbon-based counter electrodes prepared by ... graphene, SWNTs, and graphene-SWNT composites could perform sufficiently well as counter electrodes for DSSCs Figure Nyquist plot of DSSCs Nyquist plot of D...

Ngày tải lên: 20/06/2014, 23:20