University of California

Merck Patent Gmbh

Wanli Ma

Guillermo C Bazan

Alan J Heeger

Xiong Gong

Bin Liu

Parameswar K Iyer

Russell A Gaudiana

David P Waller

Christoph Brabec

Daniel Moses

Markus Koppe

Markus Scharber

Jacek Ostrowski

Jae Kwan Lee

Mauro Morana

Methods, compositions and articles of manufacture involving soluble conjugated polymers are provided. The conjugated polymers have a sufficient density of polar substituents to render them soluble in a polar medium, for example water and/or methanol. The conjugated polymer may desirably comprise monomers which alter its conductivity properties. In some embodiments, the inventors have provided cationic conjugated polymers (CCPs) comprising both solubilizing groups and conductive groups, resulting in conductive conjugated polymers soluble in polar media. The different solubility properties of these polymers allow their deposition in solution in multilayer formats with other conjugated polymers. Also provided are articles of manufacture comprising multiple layers of conjugated polymers having differing solubility characteristics. Embodiments of the invention are described further herein.

Methods and devices comprising soluble conjugated polymers

Methods, compositions and articles of manufacture involving soluble conjugated polymers are provided. The conjugated polymers have a sufficient density of polar substituents to render them soluble in a polar medium, for example water and/or methanol. The conjugated polymers may desirably comprise monomers which alter their conductivity properties. The different solubility properties of these polymers allow their deposition in solution in multilayer formats with other conjugated polymers. Also provided are articles of manufacture comprising multiple layers of conjugated polymers having differing solubility characteristics. Embodiments of the invention are described further herein.

Methods and devices utilizing soluble conjugated polymers

Soluble conjugated polymers

Processing additives, as well as related compositions, photovoltaic cells, photovoltaic modules, and methods, are disclosed.

Processing additives for fabricating organic photovoltaic cells

White light-emitting electrophosphorescent polymeric light-emitting diodes (PLEDs) are demonstrated using semiconducting polymers blended with organometallic emitters as emissive materials in a common region. These materials may be cast from solution. The CIE coordinates, the color temperatures and the color rendering indices of the white emission are insensitive to the brightness, applied voltage and applied current density.

White electrophosphorescence from semiconducting polymer blends

Growing community of inventors

Goleta, CA, United States of America

Wanli Ma