2023
40. Photoinduced Solid-Liquid Phase Transition and Energy Storage Enabled by the Design of Linked Double Photoswitches
A. Gonzalez, Q. Qiu, J. Usuba, J. Wan, and G. G. D. Han*
ACS Mater. Au 2023, Online
39. Visible Light Activated Energy Storage in Solid-State Azo-BF2 Switches
Q. Qiu, Q. Qi, J. Usuba, K. Lee, I. Aprahamian*, and G. G. D. Han*
Chem. Sci. 2023, 14, 11359–11364.
Featured in 2023 Chemical Science HOT Article Collection
38. Solid-State Photon Energy Storage via Reversible [2+2] Cycloaddition of Donor-Acceptor Styrylpyrylium System
S. Cho, J. Usuba, S. Chakraborty, X. Li, and G. G. D. Han*
Chem 2023, 9, 3159–3171.
Featured in Chemistry World, Royal Society of Chemistry "Photoactivated cycloaddition can store solar energy for decades in strained molecules"
37. Photoswitches and Photochemical Reactions for Optically Controlled Phase Transition and Energy Storage
X. Li, S. Cho, J. Wan, and G. G. D. Han*
Chem 2023, 9, 2378–2389.
36. Optically-controlled Recovery and Recycling of Homogeneous Organocatalysts Enabled by Photoswitches
Q. Qiu, Z. Sun, D. Joubran, X. Li, J. Wan, K. Schmidt-Rohr, and G. G. D. Han*
Angew. Chem., Int. Ed. 2023, 62, e202300723
35. Photoswitch Designs for Molecular Solar Thermal Energy Storage
J. Usuba and G. G. D. Han*
Trends Chem. 2023, 5, 577–580.
34. Light-Responsive Solid-Solid Phase Change Materials for Photon and Thermal Energy Storage
X. Li, S. Cho, and G. G. D. Han*
ACS Mater. Au 2023, 3, 37–42.
Featured in 2022 Rising Stars in Materials Science Special Issue
2022
33. Photo-Controlled Energy Storage in Azobispyrazoles with Exceptionally Large Light Penetration Depths
A. Gonzalez, M. Odaybat, M. Le, J. L. Greenfield, A. J. P. White, X. Li, M. J. Fuchter*, and G. G. D. Han*
J. Am. Chem. Soc. 2022, 144, 19430–19436.
32. Photon Energy Storage in Strained Cyclic Hydrazones: Emerging Molecular Solar Thermal Energy Storage Compounds
Q. Qiu, S. Yang, M. A. Gerkman, H. Fu, I. Aprahamian*, and G. G. D. Han*
J. Am. Chem. Soc. 2022, 144, 12627–12631.
31. Stimuli-Responsive Organic Phase Change Materials: Molecular Designs and Applications in Energy Storage
M. Le and G. G. D. Han*
Acc. Mater. Res. 2022, 3, 634–643.
30. Photoswitchable Binary Nanopore Conductance and Selective Electronic Detection of Single Biomolecules Under Wavelength and Voltage Polarity Control
J. T. Hagan, A. Gonzalez, Y. Shi, G. G. D. Han*, and J. R. Dwyer*
ACS Nano 2022, 16, 5537–5544.
29. Machine Learning in Scanning Transmission Electron Microscopy
S. V. Kalinin, C. Ophus, P. Voyles, R. Erni, D. Kepaptsoglou, V. Grillo, A. R. Lupini, M. P. Oxley, E. Schwenker, M. K. Y. Chan, J. Etheridge, X. Li, G. G. D. Han, M. Ziatdinov, N. Shibata, and S. Pennycook
Nat. Rev. Methods Primers 2022, 2, 11.
2021
28. Efficient Electrocatalytic Switching of Azoheteroarenes in the Condensed Phases
J. L. Greenfield, M. A. Gerkman, R. L. Gibson, G. G. D. Han*, and M. J. Fuchter*
J. Am. Chem. Soc. 2021, 143, 15250–15257.
27. Design of Phase-Transition MOST Compounds: Compact Molecules with High Energy Densities
Q. Qiu, M. A. Gerkman, Y. Shi, and G. G. D. Han*
Chem. Commun. 2021, 57, 9458-9461.
26. Solar Energy Conversion and Storage by Photoswitchable Organic Materials in Solution, Liquid, Solid, and Changing Phases
Q. Qiu, Y. Shi, and G. G. D. Han*
J. Mater. Chem. C 2021, 9, 11444-11463.
Selected for 2021 Emerging Investigators Themed Issue
25. Sunlight-Activated Phase Change Materials for Controlled Heat Storage and Triggered Release
Y. Shi, M. A. Gerkman, Q. Qiu, S. Zhang, and G. G. D. Han*
J. Mater. Chem. A 2021, 9, 9798-9808.
2020
24. Self-Assembly of Bowlic Supramolecules on Graphene Imaged at the Individual Molecular Level using Heavy Atom Tagging
E. S. Kengmana, J. K. Lee, X. Li, J. H. Warner, and G. G. D. Han*
Small 2020, 16, 2002860.
23. Toward Controlled Thermal Energy Storage and Release in Organic Phase Change Materials
M. A. Gerkman and G. G. D. Han*
Joule 2020, 4, 1621-1625.
22. Arylazopyrazoles for Long-Term Thermal Energy Storage and Optically-Triggered Heat Release below 0 °C
M. A. Gerkman, R. S. L. Gibson, J. Calbo, Y. Shi, M. J. Fuchter*, and G. G. D. Han*
J. Am. Chem. Soc. 2020, 142, 8688-8695.
Featured in JACS Spotlight "Providing the MOST Heat in Cold Weather" J. Am. Chem. Soc. 2020, 142, 8539-8540.
Highlighted by C&EN "New materials store and release heat at subzero temperatures when triggered by light"
21. Precursor Design for High Density Single Pt Atom Sites on MoS2: Enhanced Stability at Elevated Temperatures and Reduced 3D Clustering
X. Li, J. K. Lee, Y. Lu, M. A. Gerkman, E. S. Kengmana, M. V. Fonseca, J. H. Warner, and G. G. D. Han*
Chem. Mater. 2020, 32, 2541-2551.
20. Solid-State Photoswitching Molecules: Structural Design for Isomerization in Condensed Phase
A. Gonzalez, E. S. Kengmana, M. V. Fonseca, and G. G. D. Han*
Mater. Today Adv. 2020, 6, 100058.
19. Direct Imaging of Individual Molecular Binding to Clean Nanopore Edges in 2D Monolayer MoS2
M. A. Gerkman, J. K. Lee, X. Li, Q. Zhang, M. Windley, M. V. Fonseca, Y. Lu, J. H. Warner, and G. G. D. Han*
ACS Nano 2020, 14, 153–165.
Highlighted by ACS Nano In Nano "Getting the Hole Story on Molecular Binding to Nanopore Edges" ACS Nano 2020, 14, 3–6.
2019
18. Phase Transition of Spiropyrans: Impact of Isomerization Dynamics at High Temperatures
M. A. Gerkman, S. Yuan, P. Duan, J. Taufan, K. Schmidt-Rohr, and G. G. D. Han*
Chem. Commun. 2019, 55, 5813-5816.
17. Metal Atom Markers for Imaging Epitaxial Molecular Self-Assembly on Graphene by Scanning Transmission Electron Microscopy
J. K. Lee, I. Bulut, M. Rickhaus, Y. Sheng, X. Li, G. G. D. Han, G. A. D. Briggs, H. L. Anderson, and J. H. Warner
ACS Nano 2019, 13, 7252-7260.
16. Atomic Electrostatic Maps of 1D Channels in 2D Semiconductors using 4D Scanning Transmission Electron Microscopy
S. Fang, Y. Wen, C. S. Allen, C. Ophus, G. G. D. Han, A. I. Kirkland, E. Kaxiras, and J. H. Warner
Nat. Commun. 2019, 10, 1127.
15. Direct Imaging of Photoswitching Molecular Conformations Using Individual Metal Atom Markers
M. A. Gerkman, S. Sinha, J. H. Warner, and G. G. D. Han*
ACS Nano 2019, 13, 87-96.
Prior to Brandeis University
14. Lock-and-Key Exciplexes for Thermally Activated Delayed Fluorescence
C.-C. A. Voll, G. Markopoulos, T. C. Wu, M. Welborn, J. U. Engelhart, S. Rochat, G. G. D. Han, G. T. Sazama, T.-A. Lin, T. Van Voorhis, M. A. Baldo, and T. M. Swager
Organic Materials 2020, 2, 1-10.
13. Optically Regulated Thermal Energy Storage in Diverse Organic Phase-Change Materials
G. G. D. Han, J. H. Deru, E. N. Cho, and J. C. Grossman
Chem. Commun. 2018, 54, 10722–10725. Featured in [MIT News] [MIT Energy Futures] [Phys.org]
12. Nanoporous Silicon-Assisted Patterning of Monolayer MoS2 with Thermally Controlled Porosity: A Scalable Method for Diverse Applications
G. G. D. Han, B. Smith, W. Xu, J. H. Warner, and J. C. Grossman
ACS Appl. Nano Mater. 2018, 1, 3548–3556.
11. Optically-Controlled Long-Term Storage and Release of Thermal Energy in Phase-Change Materials
G. G. D. Han, H. Li, and J. C. Grossman
Nat. Commun. 2017, 8, 1446. Featured in [MIT News] [Materials Today] [The Optical Society]
10. Photoluminescent Arrays of Nano-Patterned Monolayer MoS2
G. G. D. Han, K.-H. Tu, F. Niroui, W. Xu, S. Zhou, X. Wang, V. Bulović, C. A. Ross, J. H. Warner, and J. C. Grossman
Adv. Funct. Mater. 2017, 27, 1703688.
9. In Situ Atomic-Scale Studies of the Formation of Epitaxial Pt Nanocrystals on Monolayer Molybdenum Disulfide
S. Wang, H. Sawada, Q. Chen, G. G. D. Han, C. S. Allen, A. I. Kirkland, and J. H. Warner
ACS Nano 2017, 11, 9057-9067.
8. Atomic Structure and Dynamics of Single Pt Atom Interactions with Monolayer MoS2
H. Li, S. Wang, H. Sawada, G. G. D. Han, T. Samuels, C. S. Allen, A. I. Kirkland, J. C. Grossman, and J. H. Warner
ACS Nano 2017, 11, 3392-3403.
7. Molecularly Engineered Azobenzene Derivatives for High Energy Density Solid-State Solar Thermal Fuels
E. N. Cho, D. Zhitomirsky, G. G. D. Han, Y. Liu, and J. C. Grossman
ACS Appl. Mater. Interfaces 2017, 9, 8679-8687.
6. Photon Energy Storage Materials with High Energy Densities Based on Diacetylene–Azobenzene Derivatives
G. D. Han, S. S. Park, Y. Liu, D. Zhitomirsky, E. Cho, M. Dincă, and J. C. Grossman
J. Mater. Chem. A 2016, 4, 16157-16165.
5. Transition Metal-Oxide Free Perovskite Solar Cells Enabled by a New Organic Charge Transport Layer
S. Chang, G. D. Han, J. G. Weis, H. Park, O. Hentz, Z. Zhao, T. M. Swager, and S. Gradečak
ACS Appl. Mater. Interfaces 2016, 8, 8511-8519.
4. VOC Enhancement in Polymer Solar Cells with Isobenzofulvene–C60 Adducts
G. D. Han, A. Maurano, J. G. Weis, V. Bulović, and T. M. Swager
Org. Electron. 2016, 31, 48-55.
3. Templating Fullerenes by Domain Boundaries of a Nanoporous Network
D. den Boer, G. D. Han, and T. M. Swager
Langmuir 2014, 30, 762-767.
2. Cyclobutadiene–C60 Adducts: N-Type Materials for Organic Photovoltaic Cells with High VOC
G. D. Han, W. R. Collins, T. L. Andrew, V. Bulović, and T. M. Swager
Adv. Funct. Mater. 2013, 23, 3061-3069.
1. High Thermal and Chemical Stability in Pyrazolate-Bridged Metal–Organic Frameworks with Exposed Metal Sites
V. Colombo, S. Galli, H. J. Choi, G. D. Han, A. Maspero, G. Palmisano, N. Masciocchi and J. R. Long
Chem. Sci. 2011, 2, 1311-1319.