Benjamin Foley

TL;DR: Chen et al. reveal that the film formation starts at the liquid-air interface and is thus independent of the choice of substrates, demonstrating control over the degree of preferential orientation of the 2D perovskite layers and its drastic impact on device performance.

TL;DR: In this article, the rotational dynamics of CH3NH3PbI3 and the associated dipole were investigated using elastic and quasi-elastic neutron scattering techniques and group theoretical analysis.

TL;DR: In this paper, first-principles calculations confirm the existence of a potential barrier between the cubic and hexagonal structures, which provides an explanation for the observed thermal hysteresis.

TL;DR: In this paper, the rotational dynamics of CH3NH3+ and the associated dipole have important implications on understanding the low exciton binding energy and slow charge recombination rate in CH 3NH3PbI3 which are directly relevant for the high solar cell performance.

TL;DR: In this article, temperature dependent energy levels of methylammonium lead iodide were investigated using a combination of ultraviolet photoemission spectroscopy and optical spectrography, and it was shown that the valence band maximum and conduction band minimum shift down in energy by 110 and 77