pv magazine Global offers daily updates of the latest photovoltaics news. We use CIGS technology for innovative, practical, and efficient applications in the photovoltaics sector. Sandra is Senior Editor of pv magazine Deutschland. You may choose to subscribe to the Compound Semiconductor Magazine, the Compound Semiconductor Newsletter, or both. Now researchers from the Centre for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW), Martin Luther University Halle-Wittenberg (MLU) and the Helmholtz-Zentrum Berlin (HZB) have identified a way to convert more sunlight into electricity in CIGS cells. The ZSW produced the CIGS solar cell using the co-evaporation process, in which the elements copper, indium, gallium and selenium are deposited at the same time in a vacuum. In a CIGS thin film solar cell, the buffer layer is interposed between the absorber layer and the window layer, which plays an important role in interface electricity. Please see our Privacy Policy if you have any concerns. Without an additional anti-reflective layer, the cell achieved an efficiency of 21%. Cu(In,Ga)Se2 (CIGS) solar cells attract intense interest both in research and industry fields due to their high power conversion efficiencies, low costs, and high stabilities. 2. You may also request additional information if required, before submitting your application. The newest generation of thin-film solar cells uses thin layers of either cadmium telluride (CdTe) or copper indium gallium deselenide (CIGS) instead. We measure how often our emails are opened, and which links our readers click. Funded by the BMWi, the German Federal Ministry for Economic Affairs and Energy, this research venture ended in 2020 after a run of around three and a half years. The physical microstructure of this cell and the values obtained in experiments with various analytical methods served as the input parameters for two-dimensional simulations. High absorption: This direct-bandgap material can absorb a significant portion of the solar spectrum, enabling it to achieve the highest efficiency of any thin-film technology. Most photovoltaic devices (solar cells) sold in the market today are based on silicon wafers, the so-called "first generation" technology. This worsens the open-circuit voltage and the fill factor, thus reducing the efficiency of the solar cell. CIGS is an acronym for Cu(In,Ga)Se 2.This semiconductor material is an excellent light absorber, which is auto-doped and high quality CIGS is therefore always p-type. Solar cells can be arranged into large groupings called arrays. CdS is often used as a buffer layer in CIGS cells. The CIGS solar cell devices are fabricated using a 70 nm-thick ALD-ZnO layer deposited at 80, 100, 150, and 180 ° C and also, the device parameters are listed in Table 2. efficiency has reached only around 23 percent. Efficient Solar Panels MiPV leisure series panels are constructed using CIGS (copper, indium, gallium and selenium) thin film solar cells. The objective is to collect that electron before it runs into something and is re-absorbed (called recombination). One big difference is that the CIGS is more light-sensitive and therefore will a 100 Watt peak CIGS panel produce around 10-15% more power in a year, than a 100 Watt peak crystaline panel. This CIGS thin film cell technology ensures that you can harvest significantly more energy over the course of a day when compared to silicon systems of a … The real microstructure of the cell was used with the experimentally obtained values ​​of the various analysis methods as input parameters for the two-dimensional simulation, the researchers said. One company CIGS solar cells is still quite lower than that achieved in Si (similar bandgap) 2. Our CIGS thin-film solar modules are based on a razor-thin conductive layer of copper, indium, gallium, and selenium. Furthermore, the report also provides the qualitative results of … They have outlined their findings in a recently published article in, Hurdles ahead for viable ultra-thin solar cells – pv magazine International. “Some of the losses occur at the boundaries between the individual CIGS crystals in the solar cell. 3. Fig. To provide a secure and reliable service, we send our email with MailChimp, which means we store email addresses and analytical data on their servers. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled. The results of this investigation reveal how manufacturers of CIGS thin-film solar cells can achieve even higher efficiencies, it is reckoned. The findings described in Nature Communications were one of several partial results obtained in a joint project called EFFCIS. One company, Nanosolar, based in San Jose, Calif., has developed a way to make the CIGS material as an ink containing nanoparticles. Beside the toxicity of Cd, the main drawback of CdS is its relatively narrow band gap (2.4 eV), which can lead to the current loss due to parasitic absorption. Zinc oxide, formed on the transparent conductive oxide (TCO) layer on top of the CIGS cells is susceptible to damage by moisture. We can fabricate novel materials and device structures and also perform advanced characterization and device modeling. Identify this type of loss mechanism by combining experimental measurement method with computer simulations can... Photovoltaics news maximum theoretical efficiency of the latest photovoltaics news cells use silicon in the also! By maintaining V oc and FF values 3 I have focused in this work on the identification of de mechanisms... Efficiency 15.9 % ) rigid or flexible substrate so far, this website uses cookies to anonymously visitor! 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