Optoelectrical characteristics of organic light-emitting devices fabricated with different cathodes

Effect of working pressure on the structural, optical and electrical properties of titanium-gallium co-doped zinc oxide thin films

“…Recently, transparent conducting oxide (TCO) films have gained much interest due to their potential use in many applications, such as photovoltaic thin film solar cells [1][2][3][4][5], light-emitting diodes [6][7][8][9][10][11][12], flat panel displays [13] and gas sensors [14]. Among the different materials belonging to TCO, zinc oxide (ZnO) is a promising alternative to indium-tin oxide (ITO) in TCO applications, due to its low cost, relatively low deposition temperature and stability in hydrogen plasma compared to ITO and tin oxide (SnO 2 ) [15,16].…”

Study on the Optical and Electrical Properties of Organic Semiconductor Thin Films for OLEDs

“…Organic semiconductors have attracted increasing attention in both academic and industrial laboratories in past two decades, because of their potential advantages such as a low-cost, a low-temperature process, a mechanical flexibility and variety of infinite derivatives. As alternatives to inorganic semiconductors, semiconducting organic materials have been widely applied in microelectronic and optoelectronic devices, for instances, organic light-emitting diodes (OLEDs) [1][2][3][4][5][6][7], organic solar cells [8][9][10][11][12] and organic thin film transistors [13]. It is well known that the basic structure of an OLED consists of one or more layers of organic fluorescent thin films sandwiched between an anode and a metal cathode, and thereby the optoelectrical properties of the organic thin films play an important role in improving the device performance [14][15][16][17].…”

Optical and Dielectric Characteristics of Photoactive Layer Thin Films for Organic Photovoltaic Cells

“…Optical thin films of organic semiconductor materials are of wide interest for applications in optoelectronics, for instance, organic light-emitting diodes (OLEDs) [1][2][3][4][5][6], organic field effect transistors (OFETs) [7,8], organic photovoltaic cells (OPVCs) [9][10][11][12][13][14] and organic solid-state lasers (OSSLs) [15]. Such devices generally consist of single or multiple thin organic function layers with a thickness in the range 10~100 nm, and thereby the optical and dielectric properties of the thin films are crucial to the improvement of the device performance [16][17][18].…”