Cherie R Kagan Research Group

@article{Castronovo2025,

title = {Ultrafast Switching of Whispering Gallery Modes in Quantum Dot Superparticles},

author = {Pietro Castronovo and Marco Reale and Susan A. Rigter and Cherie R. Kagan and Christopher B. Murray and Salvatore Lorenzo and Erik C. Garnett and Peter Schall and Emanuele Marino and Alice Sciortino and Fabrizio Messina},

doi = {https://doi.org/10.1021/acs.nanolett.5c00643},

year  = {2025},

date = {2025-02-24},

urldate = {2025-02-24},

journal = {Nano Letters},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Kramadhati2025,

title = {Large-Area, Narrow-Gap Plasmonic Nanodimer Metasurfaces Exploiting Colloidal Nanocrystals: Promising Platforms for Refractive Index Sensing},

author = {Shobhita Kramadhati and Yun Chang Choi and Cherie R. Kagan},

doi = {https://doi.org/10.1021/acsanm.4c07056},

year  = {2025},

date = {2025-02-20},

urldate = {2025-02-20},

journal = {ACS Applied Nano Materials},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Panfil2025,

title = {Room-temperature quantum emission from CuZn-VS defects in ZnS:Cu colloidal nanocrystals},

author = {Yossef E. Panfil and Sarah M. Thompson and Gary Chen and Jonah J. Ng and Cherie R. Kagan and Lee C. Bassett},

doi = {https://doi.org/10.48550/arXiv.2501.11812},

year  = {2025},

date = {2025-01-21},

journal = {arXiv},

keywords = {},

pubstate = {forthcoming},

tppubtype = {article}

}

@article{Lynch2024b,

title = {Gate-Tunable Optical Anisotropy in Wafer-Scale, Aligned Carbon Nanotube Films},

author = {Jason Lynch and Evan Smith and Adam Alfieri and Baokun Song and Matthew Klein and Christopher E. Stevens and Cindy Yueli Chen and Chavez FK. Lawrence and Cherie R. Kagan and Honggang Gu and Shiyuan Liu and Lian-Mao Peng and Shivashankar Vangala and Joshua R. Hendrickson and Deep Jariwala},

doi = {10.1038/s41566-024-01504-0},

year  = {2024},

date = {2024-08-14},

urldate = {2024-08-14},

journal = {Nature Photonics},

abstract = {Telecommunications and polarimetry both require the active control of the polarization of light. Currently, this is done by combining intrinsically anisotropic materials with tunable isotropic materials into heterostructures using complicated fabrication techniques owing to the lack of scalable materials that possess both properties. Tunable birefringent and dichromic materials are scarce and rarely available in high-quality thin films over wafer scales. Here we report semiconducting, highly aligned, single-walled carbon nanotubes (SWCNTs) over 4″ wafers with normalized birefringence and dichroism values of 0.09 and 0.58, respectively. The real and imaginary parts of the refractive index of these SWCNT films are tuned by up to 5.9% and 14.3% in the infrared at 2,200 nm and 1,660 nm, respectively, using electrostatic doping. Our results suggest that aligned SWCNTs are among the most anisotropic and tunable optical materials known and open new avenues for their application in integrated photonics and telecommunications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Liu2024,

title = {Stabilizing alkaline fuel cells with a niobium-doped brookite titanium dioxide catalyst support},

author = {Chang Liu and Wonil Jung and Sungho Jeon and Grayson Johnson and Zixiao Shi and Langqiu Xiao and Shengsong Yang and Cheng-Yu Chen and Jun Xu and Cherie R. Kagan and Sen Zhang and David A. Muller and Eric A. Stach and Christopher B. Murray and Thomas E. Mallouk},

doi = {10.1016/j.xcrp.2024.102090},

year  = {2024},

date = {2024-07-08},

urldate = {2024-07-08},

journal = {Cell Reports Physical Science},

abstract = {Anion-exchange membrane fuel cells represent a promising and scalable approach for hydrogen energy utilization. However, their development is hindered by the weak bonding between metal catalysts and carbon supports, along with challenges in fabricating electronically/ionically conductive electrodes. Here, we report a composite cathode of Nb-doped brookite TiO2 nanorods that have robust stability when combined with Pt nanoscale catalysts in an alkaline fuel cell. The composite cathode, fabricated without the addition of an ionomer, delivers a power density of 419 mW cm−2 at a current density of 650 mA cm−2 and a voltage retention of 81% at 100 mA cm−2 after 25 h, substantially outperforming a cathode fabricated from commercial Pt/C. Further investigations of the chemical structure, anion exchange capacity, and mass transfer resistance reveal that a solvent residue derived from N-methylpyrrolidone plays an important role in charge transfer and mass transport in the alkaline fuel cell.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}