I-APS sponsors awards for outstanding contributions to the photochemical sciences. The annual Call for Nominations is circulated each summer with awards presented at the annual I-APS Winter Conference.

I-APS Award in Photochemistry

The I-APS Award in Photochemistry was established in 1988 to recognize outstanding contributions by members of the Society to the advancement of the photochemical and photophysical sciences, recognizing achievements made during the past ten years of the nominee's career.

2019 Felix ("Phil") Castellano, North Carolina State University
2018 Dirk Guldi, Erlangen University
2017 Bern Kohler, Ohio State University
“UV Excited States of DNA: Photostability with a Twist”
2016 Russell Schmehl, Tulane University
“Photoinduced Energy and Electron Transfer Processes of Transition Metal Complex Chromophores”
2015 Cornelia Bohne, University of Victoria
“Mechanistic Insights from Supramolecular Dynamic Studies on the Binding of Guests with Cucurbit[n]urils”
2014 Claudia Turro, Ohio State University
“Excited States of Inorganic Complexes for Applications in Biology and Solar Energy”

Clifford P. Kubiak, University of California, San Diego
"Electrochemical and Photoelectrochemical Reduction of Carbon Dioxide"

2012 Miguel Garcia-Garibay, University of California, Los Angeles
"Reaction Mechanisms and Absolute Kinetics in Solid State Photoreactions."
2011 Kirk Schanze, University of Florida
"Photonic Polymers: Properties and Applications."
2010 William J. Leigh, McMaster University
"Group 14 Reactive Intermediates. Photochemical Methods for the Study of Silicon, Germanium, and Tin Analogues of Alkenes and Carbenes."
2009 V. Ramamurthy, University of Miami
"Controlling Photochemistry with Weak Non-Covalent Forces and Confined Spaces"
2008 Peter C. Ford, University of California, Santa Barbara
"Polychromophoric Compounds for Photogeneration of Bioactive Agents"
2007 Joseph T. Hupp, Northwestern University
- for his contributions to the areas of dye sensitized photoelectrochemical cells and for his work on photoinduced charge transfer in metal complexes with Resonance Raman Spectroscopy.
2006 Daniel G. Nocera, Massachusetts Institute of Technology
"Powering the Planet: The Challenge for Science, Chemistry and Photochemistry in the 21st Century"
2005 Devens Gust, Arizona State University
"Molecule-Based Switches and Logic Gates: Using Photochromic Molecules to Control Photoinduced Electron Transfer"
2004 Michael R. Wasielewski, Northwestern University
"Photoinitiation and Control of Charge Transport: From Molecules to Materials"
2003 Frederick D. Lewis, Northwestern University
"Reflections on Excited State Reactivity: Entropy, Enthalpy, and Conformation"
2002 Paul F. Barbara, University of Texas at Austin
"The Photochemistry, Structure, and Dynamics of Delocalized Charges in Water"
2001 Michael A.J. Rodgers, Bowling Green State University
"Redox Reactions in Complexes of Metalloporphyrins with Native Proteins and Synthetic Peptides: A Photodynamic Study"
2000 Peter J. Wagner, Michigan State University
"A Decade of Closure and Surprises"
1999 Douglas C. Neckers, Bowling Green State University
"The Photochemical Sciences"
1998 David G. Whitten, Los Alamos National Laboratory
"Photoinduced Electron Transfer Fragmentations Revisited: Medium Effects and Amplification through Tandem Cofragmentation"
1997 Thomas J. Meyer, University of North Carolina at Chapel Hill
"MLCT Excited States"
1996 Graham R. Fleming, University of California at Berkeley
"Photosynthetic Light Harvesting"
1995 Samir Farid, Eastman-Kodak Company
"Bimolecular Photoinduced Electron Transfer"
1994 Josef Michl, University of Colorado at Boulder
"What Does Organosilane Photophysics Tell Us About the Nature of Sigma Bonding?"
1993 Juan C. (Tito) Scaiano, University of Ottawa
"Connecting the Free Radical, Carbene and Carbocation Manifolds through Electron and Proton Transfer Reactions"
1992 Gerhard L. Closs, University of Chicago
"Triplet and Singlet Energy Transfer in Bifunctional Organic Molecules"
1991 Nicholas J. Turro, Columbia University
"Photochemistry in Nanoscopic Reactors"
1988 C. Bradley Moore, Northwestern University

I-APS Young Investigator Award

The I-APS Young Investigator Award was established in 2002 to recognize outstanding photoscientific contributions by Society members who have held an independent research position for no more than five years at the time of application.

2019 Joshua Vura-Weis, The University of Illinois at Urbana-Champaign
2018 Kenneth Hanson, Florida State University
2017 Jillian Dempsey, University of North Carolina-Chapel Hill
“Photo-triggering Proton-Coupled Electron Transfer Reactions to Elucidate Reaction Mechanism”
2016 Amanda Morris, Virginia Technical Institute
“Light Harvesting Through Energy Transfer in Metal Organic Frameworks”
2015 Luis M. Campos, Columbia University
“Haggling Two Excitons for One Photon in Organic Electronics”
2014 Joel Rosenthal, University of Delaware
“Development and Spectroscopic Interrogation of New Catalyst Materials and Light Harvesting Assemblies for the Conversion of Carbon Dioxide into Fuels”

Angel Martí, Rice University
"What Light Through “Time-Windows” Break?"

2012 Ken L. Knappenberger, Jr., Florida State University
"Nanoparticle Optical Properties and Relaxation Dynamics Studied by Single-Particle Spectroscopy"
2011 Sivaguru Jayaraman , North Dakota State University
"Atropisomeric Molecular Templates for Asymmetric Photoreactions"
2010 Marcia Levitus , Arizona State University
"Photophysics of Single-Molecule Fluorescent Dyes"
2009 Gonzalo Cosa , McGill University
"Novel fluorescence-based strategies for visualizing chemical interactions in lipid membranes"
2008 Elizabeth Harbron, William and Mary College
"Fluorescence Modulation in Photochromic Poly(p-phenylenevinylene) Derivatives"
2007 Torsten Fiebig, Boston College
- for his work on electron transport in DNA using ultrafast spectroscopy.
2006 Mohammad A. Omary, University of North Texas
2005 Igor V. Alabugin, Florida State University
"Photochemistry of Acetylenes and Enediynes: From MO Crossings to DNA Cleavage"
2004 Leonard E. MacGillivray, University of Iowa
"Linear Templates: Tools for Directing the [2 + 2] Photodimerization in the Solid State"
2003 Dario M. Bassani, Universite de Bordeaux
"Supramolecular Photochemistry: From Molecular Electronics to Self-Assembled Photoactive Architectures"

The George S. Hammond Award

In recognition of his central role in the development of the modern photochemical sciences, the George S. Hammond Award is given for lifelong achievement in, and contributions to, the photochemical sciences. The Award is given biennially at an I-APS meeting in years that alternate with conferral of the Nicholas J. Turro Award, beginning in 2013. The Award has been endowed by generous contributions from Prof. Hammond’s former students and colleagues.

2019 Joe Hupp, Northwestern University

David Whitten, University of New Mexico
50 Years of Photochemical Research: From Energy and Electron Transfer to Self Organized Assemblies as Sensors and Antimicrobials


Josef Michl, University of Colorado
Singlet Fission:  A Search for Chromophores and Their Optimal Coupling

2013 Nicholas J. Turro, Columbia University
In recognition of the breadth and depth of Prof. Turro's many crucial contributions to the photochemical sciences and his singular impact on worldwide dissemination of photochemical knowledge through his many collaborations and his pioneering textbooks.

The Nicholas J. Turro Award

Established in 2017, the Nicholas J. Turro Award recognizes innovative contributions in photochemical sciences that transformed thinking or led to meaningful development of the field. The awardees have made sustained scientific contributions with demonstrated successful mentoring of the next generation of photochemists over a period of at least twenty years. The Turro Award will be given in alternate years with the George S. Hammond Award.

2020 Professor Juan ("Tito") Scaiano, University of Ottawa

Vincenzo Balzani, University of Bologna Italy
Inspired by the Wisdom of Ciamician

Gerhard Closs Student Award

Professor Gerhard L. Closs was one of the outstanding chemists of the past century, receiving the 1991 A. C. Cope Award in chemistry from the American Chemical Society and the 1992 Award in Photochemistry from the Inter-American Photochemical Society. Professor Closs was a devoted teacher and mentor, and it is in remembrance of that spirit that the Inter-American Photochemical Society solicits contributions from graduate and undergraduate students for oral presentation at the I-APS Winter Conference on any subject involving photochemistry.

2019 Yishu Jiang, Northwestern University (Advisor: Emily Weiss, Northwestern University)
2018 Marija Zoric, University of Illinois–Chicago (Advisor: Ksenija Glusac)
2017 Richard Lincoln, McGill University
“Lighting and Enlightening the Chemistry of the Cell”
2017 Richard Lincoln, McGill University
“Lighting and Enlightening the Chemistry of the Cell”
2016 Brian DiMarco, University of North Carolina at Chapel Hill
“Influence of Surface Anchoring on Dye-Sensitized Interfacial Electron Transfer”
2015 Albert King, Ohio University
“Investigations of Photoisomerization Mechanisms in Ru(II) bis-Sulfoxides”

Elango Kumarasang, North Dakota State University
“Stereospecific Phototransformations of Atropisomeric Maleimides”


Tod Grusenmeyer, Tulane Universtiy
"An investigation of the Excited State Properties of a Series of Sn(IV) Schiff Bases Complexes – The Observation of Long-Lived, Photoredox Active Excited States"

2012 Mintu Porel
University of Miami; V. Ramamurthy, Supervisor
“Water Soluble Organic Hosts as Modulators of the Photophysical Processes of Organic Guests”
2011 Kevin Stamplecoskie
University of Ottawa; Tito Scaiano, Supervisor
“Using the Surface Plasmon Absorption of Silver Nanoparticles to a Maximum”
2010 Yunlong Zhang
Ohio State University; Matthew Platz, Supervisor
"Ultrafast UV-Vis/IR Spectroscopic and Theoretical Studies on the Photochemistry of Aryldiazirines: Direct Observation of the S1 Excited States"
2009 Tihana Mirkovic
University of Toronto; Gregory Scoles, Supervisor
"Light Harvesting Dynamics in Cryptophyte Algae "
2008 Smita Dayal
Case Western Reserve University; Clemens Burda, Supervisor
"Quantum Dots-based Resonance Energy Transfer to Photodynamic Therapy Agents"
2006 Ryan C. White
University of North Carolina, Chapel Hill; Malcolm Forbes, Supervisor
"TREPR, CIDNP, and LFP Studies Of Radicals Formed From The Oxidation Of Diglycine By Water-Soluble Anthraquinone Derivatives and Their Use As Probes For The Aqueous Microenvironment"
2005 Lakshimi S. Kaanumalle
Tulane University; V. Ramamurthy, Supervisor
"Photochemistry in Water-Soluble Synthetic Capsules and Dendritic Reaction Cavities"
2004 Susan E. Bailey
University of California, Los Angeles; Jeffrey I. Zinc, Supervisor
"A Quantitative Model of Intervalence Electron Transfer Addressing Mode Symmetry, Coordinate Dependent Coupling and a Coupled Bridge State"
2003 Jayaraman Sivaguru
Tulane University; V. Ramamurthy, Supervisor
"Asymmetric Induction During Photoisomerization of Diphenylcyclopropane Derivatives: A Study in Isotropic and Confined Media"
2002 Tracy L. Morkin
McMaster University; William J. Leigh, Supervisor
"Photochemistry of alpha-Silylcarbene Precursors and Substituent Effects on the Reactivity of Silicon-Carbon Double Bonds"
2001 Mazdak Khajehpour
University of Missouri-Columbia; John F. Kauffman, Supervisor
"Investigating the Contribution of the Solvent Quadrupole Moment to the Solvent Reorganization Energy"
2000 Christine M. R. Clancy
University of North Carolina; Malcolm D. E. Forbes, Supervisor
"Time-Resolved Electron Paramagnetic Resonance Studies of Photoionization of Tyrosine Anion"
1998 Karen E. Torraca
University of Florida; Lisa McElwee-White, Supervisor
"Photooxidation of Metal Carbynes: Radical Reactivity of 17-Electron Cationic Complexes"
1997 Michele K. Eggleston
Purdue University; David R. McMillin, Supervisor
"Sequence Dependent Binding Using DNA-Hairpins"
1997 Gautam Prakash
University of Maryland; Daniel E. Falvey, Supervisor
"Model Studies into the Mechanism of the (6-4) Photoproduct Photolyase"
1996 Elisabeth A. Morlino
Bowling Green State University; Michael A.J. Rodgers, Supervisor
"Photodissociation of Nitrosyl-Metalloporphyrins: An Excited State Study"
1995 Paula J. Wedge
Dalhousie University; James A. Pincock, Supervisor
"The Photochemistry of Conformationally Rigid Benzylic Esters: 2,2-Dimethyl-1-indanyl Acetates and Pivalates"
1994 Michelle L. Absi
Northwestern University; Joseph T. Hupp, Supervisor
"Direct Observation of Intramolecular Electron Transfer Kinetics in Mixed-Valent Metal Complexes via Spectral and Photochemical Methods"
1993 Jeffrey W. Leon
University of Rochester; David G. Whitten, Supervisor
"Photo-SET Induced Carbon-Carbon Bond Cleavage of Monomeric and Polymeric 1,2-Diamines in Solution and in the Solid State"

Gerhard Closs Post-doctoral Award

Established in 2017, the Gerhard Closs Postdoctoral Award recognizes post-doctoral associates who have made outstanding contributions to the photochemical sciences.

2018 Renato Sampaoio, Brookhaven National Laboratory
2017 Anabel Laterna, University of Ottawa
"Light Tuning of the Catalytic Activity of decorated TiO2"

G. Cilento Award

Professor Giuseppe Cilento was one of the foremost scientists in South America and a pioneer in photobiology. His research at the Institute of Chemistry of the University of Sao Paulo demonstrated conclusively that excited triplet states can be generated enzymatically and he had the foresight to perceive that these could be reactive intermediates of importance in biology. Cilento excelled as a mentor and many of his former students and post-doctoral associates hold academic positions in Brazil and other countries. The breadth of their research interests is a direct reflection of Cilento's interdisciplinary approach to science. The G. Cilento Award was created as a result of the first I-APS South American Meeting in Iguazu Falls in 1996 with the objective of facilitating the participation of young (up to age 35) scientists and students working in Latin America in the I-APS Annual Conferences.

2018 Alejandro Cadranel, University of Buenos Aires
2017 Matias Aguirre, Universidad Nacional de Mar del Plat
“Modulation of the Electron Transfer Processes in Noble Metal/ZnO Nanocomposites”
2016 M. Jazmin Silvero, National University of Cordoba Argentina
“Can Green LEDs and Nanoparticles Save us from Superbugs?”
2014 Denis Fuentealba, University of Chile
“Towards the Use of Biosupramolecular Assemblies as Carriers and Enhancers of Drug Photoactivity”

Pedro Camargo
Universidade de São Paulo, Brazil

2012 Natalia Pacioni
Universidad Nacional de Cordoba
“Photophysics and Photochemistry to Differentiate between Metal Nanoparticles in Mixtures: an Analytical Strategy”
2011 M. Laura Dantola
Universidad Nacional de La Plata
“Production and Quenching of Reactive Oxygen Species by Pterin Derivatives”
2009 Mariano Bossi
CONICET- National Research Council of Argentina
"Rhodamine spiroamides, a new family of photoswitchable fluorescent markers for far-field fluorescence microscopies with biomolecular resolution"
2008 Carla Santos de Oliveira
Universidad de Sao Paulo, Brazil
"Distributions and Photochemical Mechanisms of CV and MB in Reverse Micelles and in HeLa Cells"
2006 Franco M. Cabrerizo
Universidad de Buenos Aires and Universidad Nacional de La Plata, Argentina
"Photophysics And Photosensitizing Properties Of Pterins In Aqueous Solution"
2005 Alvaro Delgadillo
Potifica Universidad Catolica de Chile
"Photophysics of Condensed Heterocyclic Ruthenium Complexes in Solution and Anchored to Nanocrystalline TiO2"
2004 Sahori B. Yamaki
Universidade de Sao Paulo, Brazil
"Spectral Broadening of Selectively Attached Pyren-1-yl Groups and the Dynamics of Relaxation Processes in Ethylene-co-Vinyl Acetate Copolymers"
2002 Claudio D. Borsarelli
Universidad Nacional de Santiago del Estero, Argentina
"Singlet Molecular Oxygen Quenching Ability of Carotenoids in a Reverse-Micelle Membrane Mimetic System"
2001 Ezequiel Wolcan
Universidad Nacional de La Plata, Argentina
"Photochemical & Photophysical Properties of fac-Re(I) Tricarbonyl Complexes: A Comparison of Monomer and Polymer Species with -Re(CO)3Phen Chromophores"
2000 Ana Paola P. Cione
Universidad de Sao Paolo, Brazil; Fergus Gessner, Supervisor
"Photochemistry and Photophysics of Aromatic Hydrocarbons on Clays"

I-APS Fellows

The Society established the honor of Fellowship in 1993. Fellowship recognizes outstanding lifetime scientific achievements in photochemistry or contributions to either the science of photochemistry as a discipline or the furtherance of the society through service.

2018 Frederick Lewis, Northwestern University
R. Marshall Wilson, Bowling Green State University
2017 Josef Michl
University of Colorado, Boulder
Singlet Fission
2014 Richard Givens
University of Kansas
2013 Frank Quina
Universidade de São Paulo
2012 Paul J. Kropp
University of North Carolina, Chapel Hill
2011 David R. McMillin
Purdue University
2010 Robert S. H. Liu
University of Hawaii
2009 Douglas Neckers
Bowling Green University
2008 Jack Saltiel
Florida State University
2006 Sally Mallory & Frank B. Mallory
University of Pennsylvania & Bryn Mawr College
2005 J. Kerry Thomas
University of Notre Dame
2005 David I. Schuster
New York University
2002 Donald R. Arnold
Dalhousie University
2000 Anthony M. Trozzolo
University of Notre Dame
1999 Glenn A. Crosby
Washington State University
1996 Eduardo A. Lissi
Universidade de Santiago, Chile
1996 R. Srinivasan
UVTech Associates
1995 Michael Kasha
Florida State University
1995 Harry A. Morrison
Purdue University
1994 Otto P. Strausz
University of Alberta
1994 N. C. Yang
University of Chicago
1994 George S. Hammond