<page_title> High-temperature superconductivity </page_title> <section_title> Bi-, Tl- and Hg-based high-Tc superconductors </section_title> <table> <cell> Bi-2201 <col_header> Notation </col_header> </cell> <cell> 20 <col_header> Tc (K) </col_header> </cell> <cell> Bi-2212 <col_header> Notation </col_header> </cell> <cell> 85 <col_header> Tc (K) </col_header> </cell> <cell> Bi-2223 <col_header> Notation </col_header> </cell> <cell> 110 <col_header> Tc (K) </col_header> </cell> </table>
The Bi-2201, Bi-2212 and Bi-2223 have transition temperatures of 20, 85 and 110 K.