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Robust, Scalable Synthesis of the Bulky Hagfeldt Donor for Dye‐Sensitized Solar Cells
Author(s) -
Baumann Alexandra,
Watson Jonathon,
Delcamp Jared H.
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201902349
Subject(s) - dye sensitized solar cell , redox , chemistry , electrolyte , combinatorial chemistry , photochemistry , materials science , nanotechnology , electrode , inorganic chemistry
Abstract The bulky triarylamine group commonly referred to as the “Hagfeldt donor” is a key building block found in many of the organic dyes used in dye‐sensitized applications such as dye‐sensitized solar cells (DSCs). This building block has gained popularity owing to its presence in many of the best‐performing DSC devices reported to date, which use dyes containing this donor group. The Hagfeldt donor provides a desirable 3‐dimensional structure that aids in surface protection of electrons injected into the semiconductor from oxidants in the electrolyte, allowing for record‐setting cobalt‐ and copper‐based redox shuttles to be utilized more frequently. However, the synthesis of this molecule has proven unreliable for many routes. This study concerns a novel, reliable and scalable five‐step synthesis of the Hagfeldt donor.