Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Graham, Matt"'
Publikováno v:
Physical Review B, 107, 224309, 2013
Reduced graphene oxide (rGO) is a bulk-processable quasi-amorphous 2D material with broad spectral coverage and fast electronic response. rGO sheets are suspended in a polymer matrix and sequentially photoreduced while measuring the evolving optical
Externí odkaz:
http://arxiv.org/abs/2301.13176
Publikováno v:
Advanced Functional Materials, 2300742, 2023
Under varying growth and device processing conditions, ultrabroadband photoconduction (UBPC) reveals strongly evolving trends in the defect density of states (DoS) for amorphous oxide semiconductor thin-film transistors (TFTs). Spanning the wide band
Externí odkaz:
http://arxiv.org/abs/2301.08196
High symmetry anthradithiophene molecular packing motifs promote thermally-activated singlet fission
Autor:
Mayonado, Gina, Vogt, Kyle T., Van Schenck, Jonathan D. B., Zhu, Liangdong, Anthony, John, Ostroverkhova, Oksana, Graham, Matt W.
When considering the optimal molecular packing to realize charge multiplication in organic photovoltaic materials, subtle changes in intermolecular charge transfer (CT) coupling can strongly modulate singlet fission. To understand why certain packing
Externí odkaz:
http://arxiv.org/abs/2201.03133
Within the subgap of amorphous oxide semiconductors like amorphous indium gallium zinc oxide (a-IGZO) are donor-like and acceptor-like states that control the operational physics of optically transparent thin-film transistors (TFTs). Hydrogen incorpo
Externí odkaz:
http://arxiv.org/abs/2111.08588
Autor:
Graham, Matt, Ng, Kaitlyn
Publikováno v:
In Journal of Great Lakes Research June 2024 50(3)
Dark matter particles may interact with other dark matter particles via a new force mediated by a dark photon, $A^{\prime}$, which would be the dark-sector analog to the ordinary photon of electromagnetism. The dark photon can obtain a highly suppres
Externí odkaz:
http://arxiv.org/abs/2104.10280
Publikováno v:
J Phys Chem C, 124, 28, 15195 (2020)
Despite inherently poor interlayer conductivity, photodetectors made from few-layer devices of 2D transition metal dichalcogenides (TMDs) such as WSe$_2$ and MoS$_2$ can still yield a desirably fast ($\leq$90 ps) and efficient ($\epsilon$$>$40\%) pho
Externí odkaz:
http://arxiv.org/abs/2003.13579
Autor:
Vogt, Kyle T., Malmberg, Christopher E., Buchanan, Jacob C., Mattson, George W., Brandt, G. Mirek, Fast, Dylan B., Cheong, Paul H. -Y., Wager, John F., Graham, Matt W.
Publikováno v:
Phys. Rev. Research 2, 033358 (2020)
The sub-gap density of states of amorphous indium gallium zinc oxide ($a$-IGZO) is obtained using the ultrabroadband photoconduction (UBPC) response of thin-film transistors (TFTs). Density functional theory simulations classify the origin of the mea
Externí odkaz:
http://arxiv.org/abs/1910.06264
Publikováno v:
Stacking Angle-Tunable Photoluminescence from Interlayer Exciton States in Twisted Bilayer Graphene, Nature Communications, 10, 1445, 2019, https://www.nature.com/articles/s41467-019-09097-x
Using resonant 2-photon excitation of interlayer electrons in twisted bilayer graphene (tBLG), we resolve photoluminescence (PL) that tunes spectrally with stacking angle, {\theta}. This weak signal is 4- 5$\times$ larger than the non-resonant backgr
Externí odkaz:
http://arxiv.org/abs/1806.06312