Patent ID: 11903304
Assignee: RAYNERGY TEK INCORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 11:
12. A process of manufacturing an photodiode according to claim 1, comprising the following steps in the order from a) to h)
a) depositing a high work function electrode material onto a substrate (110) to form a hole collecting electrode (120),
b) optionally depositing a conductive polymer onto the hole collecting electrode (120) by a liquid-based process, to form a second HSL (180),
c) depositing a polymer of formula I or a composition or polymer blend according to the present invention as described above and below onto the hole collecting electrode (120) or, if present, onto the second HSL (180), to form a first HSL (130),
d) depositing an electron donor material and an electron acceptor material onto the first HSL (130) to form a photoactive layer (140),
e) optionally subjecting the photoactive layer (140) to thermal treatment, such as annealing, to form a randomly organized bulk heterojunction (BHJ),
f) optionally depositing an electron selective material onto the photoactive layer (140) to form an ESL (150), for example by a sputtering, vapour deposition or liquid-based process depending on the material used,
g) depositing a low work function electrode material onto the photoactive layer (140) or, if present, onto the ESL (150) to form an electron collecting electrode (160),
h) optionally applying a second substrate (170) onto the low work function electrode (160).