1c-Perovskite/Crystalline Silicon Thin-Film Tandem

Solar-Tectic LLC is pleased to present “1c-Perovskite/Crystalline Silicon Thin-Film Tandem” a high efficiency solar cell with a non-toxic (Sn, Au, Ge) component replacing lead.

A perovskite/crystalline silicon thin-film tandem solar cell can potentially reach efficiencies up to 45% !   25% – 30% is a realistic goal for now.

Update (January 21, 2019): ST is excited to learn that Brown University’s Padture group has demonstrated stable perovskite material patented by ST.  See their paper in the link (https://www.nature.com/articles/s41467-018-07951-y) and the ST patent [link — see attached] with the same material system.

Update (November 17, 2018): Is the perovskite CsAuI stable? A Korean research group thinks so… Korean Researchers Propose- New Material for Stable Lead-free Perovskite

Update (September 4th, 2018): Solar-Tectic is pleased to announce that another breakthrough perovskite patent has now been issued. Please see the related news post for more information.

Update (May 29th, 2018): Solar-Tectic is very pleased to announce that yet a fourth patent for perovskite solar cells was allowed today by the US Patent Office.  US patent application 15/157,539 titled “Methods of growing heteroepitaxial single crystal or large grained semiconductor films and devices thereon” covers every type of perovskite as a top layer in a high efficiency heterojunction solar cell device.  This achievement greatly enhances Solar-Tectic’s patent portfolio.  Solar-Tectic is one of only two companies in the USA working on perovskite solar cells,  and perhaps the only one with issued patents for perovskites.

Update (April 17th, 2018): Another patent application for perovskite solar cells was allowed by the US Patent Office today. Please see details under News.

Update (February 5th, 2018): The perovskite CsSnI3 (cesium tin iodide), which is non-toxic, has successfully been grown on our MgO (111) highly textured transparent buffer layer, on soda-lime glass. Now we will move to the tandem fabrication, stability testing, and then solar cell….

Update (March 27th, 2017): Tin perovskite thin film tandem solar cell patent granted by the US Patent Office to Solar-Tectic LLC.  More info available through PRNewswire.

Update (November 3rd, 2016): A patent for Tin Perovskite/Silicon Thin-Film Tandem Solar Cells has been published today, the patent can be downloaded through this link.

Update (September 9th, 2016): A PDF Version of the Patent Application for Methods of Growing Heteroepitaxial Single Crystal or Large Grained Semiconductor Films and Devices Thereon is now available.

Update (July 31st, 2016): Solar-Tectic LLC is pleased to announce that the paper “High efficiency perovskite/crystalline silicon thin-film tandem solar cell from a highly textured MgO[111] buffered glass substrate: a proposal” has been published in the peer reviewed “Journal of Energy Challenges and Mechanics”.  This is the first paper ever published on the topic of a perovskite/crystalline silicon thin film tandem solar cell and reveals an entirely new technology to achieve this design in a simple and cost effective way, thus replacing the perovskite/silicon wafer tandem cell design. Perovskite Paper PDF Download