Graham Laboratory at the University of Kentucky
@grahamlab.bsky.social
We're focused on developing and applying photoemission spectroscopies, admittance spectroscopies, and electrochemical methods to understand doping, defects, and degradation in organic semiconductors and organic metal halide perovskites.
Increasing the stability of organic metal halide perovskites remains a major challenges. Led by Tareq Hossain, we show how the ammonium cation structure can be used to increase stability in 2D tin halide perovskites: pubs.acs.org/doi/10.1021/...
Effects of A-Site Cation Structure on the Stability of 2D Tin Halide Perovskites
Two-dimensional halide perovskites (2D-HPs) are of significant interest for their applications in optoelectronic devices. Part of this increased interest in 2D-HPs stems from their increased stability...
pubs.acs.org
November 12, 2024 at 2:42 PM
Increasing the stability of organic metal halide perovskites remains a major challenges. Led by Tareq Hossain, we show how the ammonium cation structure can be used to increase stability in 2D tin halide perovskites: pubs.acs.org/doi/10.1021/...
The counterion can significantly influence the electronic and thermoelectric properties of doped conjugated polymers. Here, we show that the counterion size plays a role in determining whether the Seebeck coefficient changes sign upon heavy doping. link.springer.com/article/10.1...
The influence of anion size on the thermoelectric properties and Seebeck coefficient inversion in PDPP-4T - MRS Communications
Recent findings show that the Seebeck coefficient (S) can undergo a sign inversion at high doping concentrations in certain π-conjugated polymers. This work investigates how the counterion size influe...
link.springer.com
November 12, 2024 at 2:42 PM
The counterion can significantly influence the electronic and thermoelectric properties of doped conjugated polymers. Here, we show that the counterion size plays a role in determining whether the Seebeck coefficient changes sign upon heavy doping. link.springer.com/article/10.1...
The Graham Lab is now on Bluesky! Follow us at @grahamlab.bsky.social to hear about our recent work, thoughts, and group activity. Posts will now appear on both bluesky and X.
November 12, 2024 at 2:41 PM
The Graham Lab is now on Bluesky! Follow us at @grahamlab.bsky.social to hear about our recent work, thoughts, and group activity. Posts will now appear on both bluesky and X.