![]() Although CIGS efficiency of 20% and higher has been reported previously by two groups (see Table III), this has been for cells appreciably less than 1 cm 2 in area, the minimum considered reasonable for efficiency comparisons in these Tables and for milestones in most of the international programs.Ī third new result in Table I is 12.5% efficiency for an eight cell 35 cm 2 CdTe submodule fabricated by Advanced Solar Power (ASP) Hangzhou, also measured by NREL.Ī fourth new result in Table I is for a dye sensitized submodule with efficiency of 9.9% reported for a 17 cm 2 submodule fabricated by Sony 6 and measured by the Japanese National Institute of Advanced Industrial Science and Technology (AIST). The second new result in Table I is an efficiency improvement to 19.6% for a 1 cm 2 single-junction copper–indium–gallium–selenide (CIGS) cell fabricated by and measured at NREL 5. Alta Devices is a Santa Clara based “start-up” seeking to develop low-cost, 30% efficient solar modules 4. An efficiency of 27.6% has been measured at the National Renewable Energy Laboratory (NREL) for a 1 cm 2 thin-film GaAs device fabricated by Alta Devices, Inc. The first new result in Table I is an outright record for solar conversion by any single-junction photovoltaic device. Stabilised by 174 h, 1 sun illumination after 20 h, 5 sun illumination at a sample temperature of 50☌.įourteen new results are reported in the present version of these Tables. Stabilised by 1000 h, 1 sun illumination at a sample temperature of 50☌. References 32 and 33 review the stability of similar devices. Light soaked at Oerlikon prior to testing at NREL (1000 h, 1 sun, 50☌). Spectral response reported in present version of these tables. Spectral response reported in Version 36 of these tables. (ap) = aperture area (t) = total area (da) = designated illumination area.įhG-ISE = Fraunhofer Institut für Solare Energiesysteme JQA = Japan Quality Assurance AIST = Japanese National Institute of Advanced Industrial Science and Technology. While not conforming to the requirements to be recognized as a class record, the cells and modules in this Table have notable characteristics that will be of interest to sections of the photovoltaic community with entries based on their significance and timeliness.ĬIGS = CuInGaSe2 a-Si = amorphous silicon/hydrogen alloy. Table III contains what might be described as ‘notable exceptions’. Table I summarises the best measurements for cells and submodules, while Table II shows the best results for modules. In most cases, a literature reference is provided that describes either the result reported or a similar result. Any changes in the tables from those previously published 3 are set in bold type. Highest confirmed “one-sun” cell and module results are reported in Tables I and II. From Version 36 onwards, spectral response information has been included when available in the form of a plot of the external quantum efficiency (EQE) versus wavelength, normalized to the peak measured value. crystalline, polycrystalline and thin film). Results are reported for cells and modules made from different semiconductors and for subcategories within each semiconductor grouping (e.g. There are also certain minimum values of the area sought for the different device types (above 0.05 cm 2 for a concentrator cell, 1 cm 2 for a one-sun cell and 800 cm 2 for a module) 1. ![]() ‘Active area’ efficiencies are not included. A distinction is made between three different eligible areas: total area aperture area and designated illumination area 1. ![]() ![]() The most important criterion for inclusion of results into the tables is that they must have been measured by a recognised test centre listed elsewhere 1. In a recent version of these tables (Version 33) 2, results were updated to the new internationally accepted reference spectrum (IEC 60904–3, Ed. By providing guidelines for the inclusion of results into these tables, this not only provides an authoritative summary of the current state of the art but also encourages researchers to seek independent confirmation of results and to report results on a standardised basis. Since January 1993, ‘Progress in Photovoltaics’ has published six monthly listings of the highest confirmed efficiencies for a range of photovoltaic cell and module technologies 1- 3. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |