scholarly journals Reaction Center of Rhodobacter Sphaeroides, a Photoactive Protein for pH Sensing: A Theoretical Investigation of Charge Transport Properties

Author(s):  
Eleonora Alfinito ◽  
Lino Reggiani

Featured Application: Bio-electronic devices take advantages of some specific duties of biological matter. The specific ability of some proteins to use sunlight is considered for the realization of photo-electronic devices . Here the focus is on the role of the pH, whose variations seem to affect the protein conductance

Langmuir ◽  
2008 ◽  
Vol 24 (5) ◽  
pp. 2219-2223 ◽  
Author(s):  
Yabing Qi ◽  
Imma Ratera ◽  
Jeong Y. Park ◽  
Paul D. Ashby ◽  
Su Ying Quek ◽  
...  

Biochemistry ◽  
1995 ◽  
Vol 34 (46) ◽  
pp. 15248-15258 ◽  
Author(s):  
Wolfgang P. Barz ◽  
Andre Vermeglio ◽  
Francesco Francia ◽  
Giovanni Venturoli ◽  
B. Andrea Melandri ◽  
...  

FEBS Letters ◽  
1987 ◽  
Vol 215 (1) ◽  
pp. 171-174 ◽  
Author(s):  
W.Jim Jackson ◽  
Patricia J. Kiley ◽  
Copper E. Haith ◽  
Samuel Kaplan ◽  
Roger C. Prince

2020 ◽  
Vol 6 (37) ◽  
pp. eabb6393
Author(s):  
Artem Musiienko ◽  
Jindřich Pipek ◽  
Petr Praus ◽  
Mykola Brynza ◽  
Eduard Belas ◽  
...  

Halide perovskites have undergone remarkable developments as highly efficient optoelectronic materials for a variety of applications. Several studies indicated the critical role of defects on the performance of perovskite devices. However, the parameters of defects and their interplay with free charge carriers remain unclear. In this study, we explored the dynamics of free holes in methylammonium lead tribromide (MAPbBr3) single crystals using the time-of-flight (ToF) current spectroscopy. By combining ToF spectroscopy and Monte Carlo simulation, three energy states were detected in the bandgap of MAPbBr3. In addition, we found the trapping and detrapping rates of free holes ranging from a few microseconds to hundreds of microseconds. Contrary to previous studies, we revealed a strong detrapping activity of traps. We showed that these traps substantially affect the transport properties of MAPbBr3, including mobility and mobility-lifetime product. Our results provide an insight on charge transport properties of perovskite semiconductors.


2011 ◽  
Vol 57 (2) ◽  
pp. 20401 ◽  
Author(s):  
M. Samadpour ◽  
N. Taghavinia ◽  
A. Iraji-zad ◽  
M. Marandi ◽  
F. Tajabadi

Sign in / Sign up

Export Citation Format

Share Document