Guillermo C. Bazan

About

Guillermo C. Bazan is a Professor Emeritus in the Department of Chemistry & Biochemistry at the University of California, Santa Barbara. He specializes in organic and bioorganic chemistry, inorganic and organometallic chemistry, materials chemistry, molecular design and synthesis, energy, catalysis, green chemistry, devices, assembly, and nanochemistry. Dr. Bazan obtained his B.Sc. from the University of Ottawa and his Ph.D. from MIT, followed by a postdoctoral fellowship at CalTech working with John Bercaw. He joined UCSB in July 1998 as a Professor of organic chemistry and is the Director of the Center for Polymers and Organic Solids. His research program bridges areas of organic chemistry, organometallic chemistry, polymers, and materials science, focusing on the synthesis of organic molecules with architectures that optimize optoelectronic performance, understanding electronic delocalization in solid-state chromophores, developing transmembrane agents for electron transfer, and oligomerization and polymerization reactions of olefins using well-defined organometallic catalysts.

Research topics

• Chemistry
• Physics
• Chemical physics
• Nanotechnology
• Materials science
• Organic chemistry
• Optoelectronics
• Biology
• Optics
• Biochemistry

Selected publications

• The role of charge recombination to triplet excitons in organic solar cells

  Nature · 2021-09-29 · 421 citations

  articleOpen access
  PublisherOA PDFDOI

• Tailoring Regioisomeric Structures of π-Conjugated Polymers Containing Monofluorinated π-Bridges for Highly Efficient Polymer Solar Cells

  ACS Energy Letters · 2020-05-26 · 142 citations

  article

  Fluorine substitution has been vital to the molecular design of π-conjugated polymers toward highly efficient polymer solar cells because it results in improved intermolecular contacts. However, the understanding of how regioselectivity impacts relevant optoelectronic properties in nonsymmetric fluorinated systems remains poorly developed. In response, we herein incorporated a single fluorine atom onto the π-bridge of [1,2,3]triazolo[4,5-f]isoindole-5,7(2H,6H)-dione (TzBI)-polymers to construct…

  PublisherDOI

• Insight into the structures and dynamics of organic semiconductors through solid-state NMR spectroscopy

  Nature Reviews Materials · 2020 · 115 citations

  Senior authorCorresponding
  DOI

• Unifying Charge Generation, Recombination, and Extraction in Low‐Offset Non‐Fullerene Acceptor Organic Solar Cells

  Advanced Energy Materials · 2020 · 103 citations

  Abstract Even though significant breakthroughs with over 18% power conversion efficiencies (PCEs) in polymer:non‐fullerene acceptor (NFA) bulk heterojunction organic solar cells (OSCs) have been achieved, not many studies have focused on acquiring a comprehensive understanding of the underlying mechanisms governing these systems. This is because it can be challenging to delineate device photophysics in polymer:NFA blends comprehensively, and even more complicated to trace the origins of the diff…

  DOI

• Effects of Halogen Substitution on the Antibiotic Characteristics of Conjugated Oligoelectrolytes

  Journal of Medicinal Chemistry · 2025-10-10 · 3 citations

  articleSenior authorCorresponding

  Conjugated oligoelectrolytes (COEs) are amphiphiles that can exhibit antimicrobial activity. With the view to further develop structure–activity relationships, we report here a series of amidinium COEs with halogen-substituted distyrylbenzene cores and an exploration of the impacts of substitution regiochemistries. We identified cF as the lead compound, with activity against Gram-positive and Gram-negative bacteria, low cytotoxicity (HepG2 IC50 ∼ 614 μg/mL), and the highest in vivo systemic tole…

  PublisherDOI

Recent grants

• Conjugated Polyelectrolytes for Optoelectronic Applications

  NSF · $405k · 2010–2013

• Conjugated Polyelectrolytes for Optoelectronic Applications

  NSF · $345k · 2006–2010

• Design and Processing of Conjugated Polymers with High Charge Carrier Mobilities

  NSF · $390k · 2014–2019

Frequent coauthors

• Thuc‐Quyen Nguyen

  University of California, Santa Barbara

  243 shared

• Alan J. Heeger

  141 shared

• Glenn P. Bartholomew

  90 shared

• Cheng‐Kang Mai

  Harbin Institute of Technology

  83 shared

• Samantha R. McCuskey

  National University of Singapore

  79 shared

• Ming Wang

  North China Institute of Science and Technology

  77 shared

• Michael J. Ford

  Lawrence Livermore National Laboratory

  75 shared

• Guang Wu

  University of California, Santa Barbara

  74 shared

Education

• PhD, Chemistry

  Massachusetts Institute of Technology

  1990

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• Craig Hawkerh-169
• Martin Moskovitsh-108
• Michael T. Bowersh-96