Averaging of the electron effective mass in multicomponent transparent conducting oxides

Averaging of the electron effective mass in multicomponent transparent conducting oxides

We find that layered materials composed of various oxides of cations with s electronic configuration, XY2O4, X = In or Sc, Y=Ga, Zn, Al, Cd and/or Mg, exhibit isotropic electron effective mass which can be obtained via averaging over those of the corresponding single-cation oxide constituents. This effect is due to a hybrid nature of the conduction band formed from the s-states of all cations a...

Identification and design principles of low hole effective mass p-type transparent conducting oxides

The development of high-performance transparent conducting oxides is critical to many technologies from transparent electronics to solar cells. Whereas n-type transparent conducting oxides are present in many devices, their p-type counterparts are not largely commercialized, as they exhibit much lower carrier mobilities due to the large hole effective masses of most oxides. Here we conduct a hi...

Easily doped p-type, low hole effective mass, transparent oxides

Fulfillment of the promise of transparent electronics has been hindered until now largely by the lack of semiconductors that can be doped p-type in a stable way, and that at the same time present high hole mobility and are highly transparent in the visible spectrum. Here, a high-throughput study based on first-principles methods reveals four oxides, namely X2SeO2, with X = La, Pr, Nd, and Gd, w...

Direct Measurement of Density-of-States Effective Mass and Scattering Mechanisms in Transparent Conducting Oxides Using Second-

Transparent Conducting Oxides in the ZnO-In2O3-SnO2 System

Transparent Conducting Oxides in the ZnO-In2O3-SnO2 System Cathleen A. Hoel, Thomas O. Mason, Jean-Franc-ois Gaillard, and Kenneth R. Poeppelmeier* Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, Department ofMaterials Science andEngineering, NorthwesternUniversity, 2220CampusDrive, Evanston, Illinois 60208-3108, and Department of Civil and E...