Monday, April 24, 2017
About Profile

About Polymeur Sun Singapore

Polymeur Sun Singapore Pte Ltd is a Turnkey Photovoltaic System Integrator specializing in lightweight flexible and See-Through solar modules. We design and build innovative photovoltaic systems into buildings and structures.

Our specialisations are as follows:

2nd and 3rd generation Flexible Light Weight photovoltaic technologies – Amorphous Silicon, CIGS and Organic flexible modules


image image image




See-Through CIGS rigid photovoltaic panels


image









Flexible Solar Technology

  • Thin Film Amorphous Silicon (a-Si)

    A-Si is solar cells are made from disordered silicon molecules, thinly coated onto a plastic (flexible module) or glass substrate (rigid panel). This simplified production process requires very little silicon material and consumes much less energy. There is no need to melt and grow expensive silicon wafers. The resource-intensive encapsulation processes are also eliminated and cost can be as low as €1 per watt in the near future.

    a-Si, passivated with hydrogen atoms has a higher light absorption coefficient compared to crystalline silicon (c-Si), with module efficiency at 8.5%. a-Si is less sensitive to higher temperatures and although it has a lower STC efficiency, a-Si still yield about 15-20% more electrical energy compared to c-Si in tropical climate.

    Most a-Si modules take the lower limit of the power range as the output specification, to compensate for the Staebler-Wronski Effect (SWE). Stabilized a-Si modules thus have smaller power degradation over time.
  • Thin Film CIGS

    CIGS solar cells are made from light absorbing semiconducting compounds Cu(In,Ga)Se2 - Copper, Indium, Gallium and De-selenide. It has the highest light absorption coefficient among semiconducting materials and therefore is the most efficient thin film solar module till date, easily achieving 10.5%.

    Ninety-nine percent of the light incident on CIGS is absorbed in the first micrometer layer and therefore much less material is required in production. CIGS film also retains its performance properties better than most semiconductors, resulting in minimal degradation over time. Energy yield is extremely stable.

    Thin film CIGS technology is environmentally friendly. It is a p-type semiconductor, using an n-p homo-junction, instead of a simple hetero-junction. Thus, unlike other conventional semiconductor processes, it is possible to form effective junctions without the use of hazardous Cadmium Sulfide (CdS).
  • Nano-Structured Organic Solar Cells

    A revolutionary breakthrough in solar technology, where carbon based photo-reactive polymers are printed or coated inexpensively onto flexible substrates using roll-to-roll manufacturing, similar to the way newspaper is printed on large rolls of paper. The extraordinary light absorption capability of the polymers enable the production of very thin solar cells, only a few tenth of micrometer thick, less than 1/1000 of silicon cell. Material cost is significantly lower and very lightweight flexible photovoltaic modules are possible. Innovative solar applications in building facades and light structures are now possible. Organic photovoltaic fabrication is a low temperature process and is environmentally friendly since no toxic elements are used, thus significantly less energy intensive. The technology is still in the early stages of development and currently, organic photovoltaic module efficiency is at about 3%. Numerous research and development are going into this technology and we can expect significant breakthrough in module efficiency by 2012.