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CSG Limited is a publicly listed Australian owned business technology company. The company has been in business since 1988. Wikipedia.


Wong J.,University of New South Wales | Huang J.,University of New South Wales | Varlamov S.,University of New South Wales | Green M.A.,University of New South Wales | Keevers M.,CSG Limited
Progress in Photovoltaics: Research and Applications | Year: 2012

The recombination current in polycrystalline silicon on glass solar cells can be modeled by the superposition of two processes, one which involves only shallow electronic levels and another which occurs via deep levels at charged extended defects. The former process is most likely linked to clean dislocations, whereas the latter may originate either from charged dislocations or grain boundaries. The consideration of both kinds of processes is necessary for an accurate description of the device behaviors of poly-Si on glass solar cells over a wide range of dopant densities. The effects of varying the impurity and dislocation densities are also briefly discussed. © 2011 John Wiley & Sons, Ltd.


Ouyang Z.,University of New South Wales | Pillai S.,University of New South Wales | Beck F.,Australian National University | Kunz O.,University of New South Wales | And 5 more authors.
Applied Physics Letters | Year: 2010

Significant photocurrent enhancement has been achieved for evaporated solid-phase-crystallized polycrystalline silicon thin-film solar cells on glass, due to light trapping provided by Ag nanoparticles located on the rear silicon surface of the cells. This configuration takes advantage of the high scattering cross-section and coupling efficiency of rear-located particles formed directly on the optically dense silicon layer. We report short-circuit current enhancement of 29% due to Ag nanoparticles, increasing to 38% when combined with a detached back surface reflector. Compared to conventional light trapping schemes for these cells, this method achieves 1/3 higher short-circuit current. © 2010 American Institute of Physics.


Wang G.,Anhui Polytechnic University | He R.,Peking University | He F.,CSG Limited
Powder Technology | Year: 2014

It has been well accepted that polyacrylic acid (PAA) is an effective dispersant for metal diborides (such as ZrB2) in aqueous media. However, when dispersing HfB2 powder, the dispersing effect is reduced significantly. In this work, a second dispersant, ammonium citrate, was used to resolve this problem. It was found that a PAA-ammonium citrate binary dispersant system could effectively enhance the zeta potential, increase the PAA adsorption content, and improve the stability of HfB2. The apparent viscosities of the suspensions were also investigated. Results showed that the PAA-ammonium citrate binary dispersant system was effective for improving the dispersion of HfB2 particles in aqueous media. © 2013 Elsevier B.V.


Ouyang Z.,University of New South Wales | Ouyang Z.,Swinburne University of Technology | Kunz O.,University of New South Wales | Kunz O.,CSG Limited | And 2 more authors.
Journal of Applied Physics | Year: 2011

A systematic investigation of the influence of the absorber doping on the performance of planar, p-type, evaporated, solid-phase crystallized polycrystalline silicon thin-film solar cells on glass is presented. It is found that the optimum Suns-Voc parameters (open-circuit voltage and pseudo fill factor) are achieved at intermediate absorber doping of N abs∼1-2 × 1017 cm-3, while high short-circuit currents are achieved at the lowest absorber doping of N abs 6 × 1015 cm-3. Since the short-circuit current is the dominating factor to achieve high conversion efficiencies for evaporated polycrystalline silicon cells, the maximum pseudo efficiencies are achieved at very low absorber doping. The Suns-Voc characteristics of lightly doped cells can be adequately described by a modified two-diode model with n1 = 1 and n2≈1.5, which is in contrast to the value of 2 for n2 commonly quoted in the literature. PC1D modeling demonstrates that such a low ideality factor for space charge region recombination can be modeled by a single trap energy level located at ∼0.18 eV away from midgap. Although the achievable short-circuit current densities and the conversion efficiencies can be higher for textured cells, planar cells are chosen intentionally to allow accurate modeling and extraction of relevant material parameters, such as minority carrier diffusion length. © 2011 American Institute of Physics.


Patent
CSG Limited | Date: 2014-10-22

A system for coating a glass board is disclosed. The coating system includes a coating chamber, a conveying unit and a support module. The conveying unit is located at a lower portion of the coating chamber and has two rollers for conveying a sheet of glass to be coated. The support module is located between the rollers and has a seat and an elevator connected to the seat. A distance between the seat and the glass can be adjusted by the elevator.

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