US 11,810,729 B2
Photovoltaic cells
Israel Patla, Nes Ziona (IL); Faina Kogan, Nes Ziona (IL); Itay Eyal, Nes Ziona (IL); Anna Razgon, Nes Ziona (IL); Yaron Grinwald, Nes Ziona (IL); and Chen Zigdon, Nes Ziona (IL)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
Filed on May 19, 2021, as Appl. No. 17/324,719.
Prior Publication US 2022/0375694 A1, Nov. 24, 2022
Int. Cl. H01L 31/00 (2006.01); H01G 9/20 (2006.01); G03G 9/097 (2006.01); C09D 11/52 (2014.01); C09D 11/107 (2014.01); G03G 9/087 (2006.01); H10K 30/35 (2023.01); H10K 71/13 (2023.01); H10K 85/30 (2023.01); H10K 85/10 (2023.01)
CPC H01G 9/2009 (2013.01) [C09D 11/107 (2013.01); C09D 11/52 (2013.01); G03G 9/08728 (2013.01); G03G 9/09783 (2013.01); H10K 30/352 (2023.02); H10K 71/13 (2023.02); H10K 85/141 (2023.02); H10K 85/151 (2023.02); H10K 85/30 (2023.02)] 10 Claims
OG exemplary drawing
 
1. A printed photovoltaic cell, comprising:
an anode;
a liquid electrophotographically printed cathode; and
a liquid electrophotographically printed photovoltaic layer disposed between the anode and the liquid electrophotographically printed cathode;
wherein the liquid electrophotographically printed photovoltaic layer comprises solids of a photovoltaic ink composition, the solids including a mixture of a first thermoplastic resin and a material with a perovskite structure;
wherein the material with a perovskite structure has a chemical formula selected from ABX3 and A2BX6;
wherein A is a cation, B is a cation and X is an anion; and
wherein the first thermoplastic resin comprises:
a copolymer of an alkylene monomer and an ethylenically unsaturated monomer comprising an epoxide; and/or
a copolymer of an alkylene monomer, an ethylenically unsaturated monomer comprising an epoxide, and a monomer selected from a monomer having acidic side groups, a monomer having ester side groups and a mixture thereof; and
wherein the liquid electrophotographically printed cathode comprises:
a second thermoplastic resin; and
electrically conductive metal particles.