On October 21, 2020, Kim, Hong Il; Lee, Junwoo; Choi, Min-Jae; Ryu, Seung Un; Choi, Kyoungwon; Lee, Seungjin; Hoogland, Sjoerd; de Arquer, F. Pelayo Garcia; Sargent, Edward H.; Park, Taiho published an article.Category: ethers-buliding-blocks The title of the article was Efficient and Stable Colloidal Quantum Dot Solar Cells with a Green-Solvent Hole-Transport Layer. And the article contained the following:
Next-generation solution-processed solar cells will hopefully be processed using green solvents, and will unite high performance with operating stability. Colloidal quantum dot/polymer hybrid solar cells are of interest for their harvest of the visible as well as the near IR; however, today′s best polymer hole-transporting layers (HTLs) rely on processing using hazardous solvents such as chlorobenzene. This stems from the strong polymer-polymer attraction in polymeric p-type materials, which accounts for their limited solubility Here, a new random polymeric HTL (asy-ranPBTBDT) is reported that is soluble in green solvents such as 2-methylanisole without compromising ultimate device power conversion efficiency. The new polymer structure induces a strong π-π stacking face-on orientation and less lateral grain growth compared to control asy-PBTBDT, leading to reduced charge recombination and improved device stability. The resulting device exhibits a power conversion efficiency (PCE) of 13.2% and retains 89% of its initial efficiency after 120 h of continuous device operation at the maximum power point, compared to a PCE of 11.4% and 71% degradation for control devices. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Category: ethers-buliding-blocks
The Article related to solarcell colloidal quantum dot green solvent hole transport layer, Placeholder for records without volume info and other aspects.Category: ethers-buliding-blocks
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