Evidence of the Ambipolar Behavior of Mo6 Cluster Iodides in All-Inorganic Solar Cells: A New Example of Nanoarchitectonic Concept

• DOI: 10.1021/acsami.1c17845
• Publication Date: 2021-12-21T15:53:58Z
• Authors: Adèle Renaud; Pierre-Yves Jouan; Noée Dumait; Soraya Ababou-Girard; Nicolas Barreau; Tetsuo Uchikoshi; Fabien Grasset; Stéphane Jobic; Stéphane Cordier
• Keywords: Ambipolar diffusion

Ambipolar materials such as carbon nanotubes, graphene, or 2D transition metal chalcogenides are very attractive for a large range of applications, namely, light-emitting transistors, logic circuits, gas sensors, flash memories, and solar cells. In this work, it is shown that the nanoarchitectonics inorganic Mo6 cluster-based iodides enable to form thin films exhibiting photophysical properties their classification new members restricted family ambipolar materials. Thus, electronic ternary iodide Cs2[{Mo6I8i}I6a] those aqua-complex-based compound [{Mo6I8i}I4a(H2O)2a]·xH2O were investigated through an in-depth photoelectrochemical study. Once hole/electron pairs created, holes electrons turn be transported simultaneously in opposite directions, lifetimes exhibit similar values. The demonstrated via integration light harvesters all-solid cell. A significant photoresponse with typical diode characteristic clearly provides evidence simultaneous transfer transport within layer. behavior results, on one hand, from confinement imposed by nanometric size molecular clusters and, other poor interactions between solid state. Such structure-based layers lead naturally intrinsic semiconducting behavior.