US 11,672,134 B2
Para-phenylenes as buffer and color tuning layers for solar cells
Miles C. Barr, Redwood City, CA (US); Richa Pandey, Sunnyvale, CA (US); John A. Love, Mountain View, CA (US); and Matthew E. Sykes, Redwood City, CA (US)
Assigned to UBIQUITOUS ENERGY, INC., Redwood City, CA (US)
Filed by Ubiquitous Energy, Inc., Redwood City, CA (US)
Filed on Aug. 14, 2020, as Appl. No. 16/994,376.
Claims priority of provisional application 62/887,983, filed on Aug. 16, 2019.
Prior Publication US 2021/0050539 A1, Feb. 18, 2021
Int. Cl. H01B 1/12 (2006.01); H01L 51/42 (2006.01); H01L 51/44 (2006.01); H01L 51/00 (2006.01)
CPC H01L 51/4253 (2013.01) [H01L 51/0001 (2013.01); H01L 51/448 (2013.01); H01L 2251/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An organic photovoltaic device comprising:
a substrate;
a first electrode coupled to the substrate;
a buffer layer coupled to the first electrode, wherein the buffer layer comprises a p-phenylene layer having a p-phenylene polymer, wherein the p-phenylene polymer has a formula of:

OG Complex Work Unit Chemistry
wherein each X is independently C—R or N, wherein n is 1, 2, 3, 4, or 5, and wherein each R is independently H, F, Cl, Br, CH3, OCH3, Si(CH3)3, NH2, OH, SH, CN, or CF3;
a second electrode disposed above the first electrode; and
one or more visibly transparent photoactive layers disposed between the buffer layer and the second electrode, the one or more visibly transparent photoactive layers having at least one electron donor material and at least one electron acceptor material.