nanostructured materials for solar energy conversion, 2006, p 615

... by D p x pp p nnn p Ѩ Ѩ Ϫ Ϫ ϭ 2 2 0 0 t Ѩ Ѩ ϭϪ Ѩ Ѩ Ϫ Ѩ Ѩ ϩ Ѩ Ѩ ϩϪ p t p E x E p x D p x G pp n np p n p n p nn p mm 2 2 0 t Ѩ Ѩ ϭ Ѩ Ѩ ϩ Ѩ Ѩ ϩ Ѩ Ѩ ϩϪ Ϫn t n E x E n x D n x G nn p pn n p n p n pp n mm 2 2 0 t Ѩ Ѩ ϭ Ѩ Ѩ ϩϪ p tq J x GR n p pp 1 () 16 T. Soga J n (x) J n (x+dx) xx + dx Area: ... trap states near the midgap (Fig. 6(b)) with a concentration of N t ....

Ngày tải lên: 04/06/2014, 14:48

... on the latter. Power- producing solar cells are designed to be operated at their maximum-power point to produce electric power at the energy conversion efficiency η mp mp mp mp S o i V E η = ... using an n-TiO 2 photoanode and a p- GaP photocathode, and also the photoreduction of dinitrogen on p- GaP. He also developed the ‘photochemical diode’, the forerunner of today’s partic...

Ngày tải lên: 04/06/2014, 14:30

... this aforementioned property of dimensional hom- ogeneity does not apply to empirical (not based on theoretical or physical principles) equations. Also note that the application of the principle ... 97 7.3 Vapor Pressure 97 7.4 Vapor Pressure Calculation 98 7.5 Heat of Vaporization From Vapor Pressure Data 99 7.6 Critical and Reduced Properties 100 7.7 Estimating Enthalpy of Vaporization ......

Ngày tải lên: 04/06/2014, 15:19

... Nanotechnology for Photovoltaics; Tsakalakos, L., Ed.; CRC Press: Boca Raton, FL2010. (24) Pillai, S.; Catchpole, K. R.; Trupke, T.; Green, M. A. Surface plasmon enhanced silicon solar cells. J. Appl. Phys. ... photoelectrolysis cell used for water splitting. In this paper we describe a specific cell that employs iron oxide. This n-type semiconductor can be viewed as a prototypical syste...

Ngày tải lên: 18/09/2013, 21:26

... which we can capture solar energy not only from solar panels, but also from the power in the wind. Although not immediately apparent, the black pipeline that runs through the picture is in fact ... overshadow our solar panels. The heliodon is therefore a very useful tool for solar design, without having to perform calculations. In this project, we present two separate designs. The...

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Ngày tải lên: 04/06/2014, 13:12

... overlap. Consequently, the choice of particle size, from a product design perspective, is directly influenced by process economics, capability to supply and the adequacy and type of performance ... of PSZ microstructural control was first published as a paper in 1975 under the title ‘Ceramic Steel?’. 11 The approach described in this paper changed the whole concept for the future developme...

Ngày tải lên: 04/06/2014, 14:58

... during processing. A review of theoretical models to predict and optimize the thermal spraying parameters for opti- mized coatings is presented. Fecht considers in his chapter the preparation of nanostructured materials ... structure and properties with those of nanostructured materials made by other methods. Examples of industrial applications of electrodeposited nanostructured...

Ngày tải lên: 04/06/2014, 14:58

... 450 0.0 0.2 0.4 0.6 0.8 1.0 p- 6P/ KCI p- 4P/ NaCI Absorption [arb.units] Wavelength [nm] Fig. 1.2. Measured absorption spectra for films of upright oriented p- 4P molecules on NaCl and laying p- 6P molecules on ... Networks as Precursor for Carbon Networks . . . . . . . . . 132 6.4.1 Temperature Dependence of Hopping Transport in CarbonNetworks 133 6.4.2 Electrical Field Dependence...

Ngày tải lên: 04/06/2014, 15:02