Functional organic single crystals for solid-state laser applications

Abstract

Because of long-range order and high chemical purity, organic crystals have exhibit unique properties and attracted a lot of interest for application in solid-state lasers. As optical gain materials, they exhibit high stimulated emission cross section and broad tunable wavelength emission as similar to their amorphous counterpart; moreover, high purity and high order give them superior properties such as low scattering trap densities, high thermal stability, as well as highly polarized emission. As electronic materials, they are potentially able to support high current densities, thus making it possible to realize current driven lasers. This paper mainly describes recent research progress in organic semiconductor laser crystals. The building molecules, crystal growth methods, as well as their stimulated emission characteristics related with crystal structures are introduced; in addition, the current state-of-the-art in the field of crystal laser devices is reviewed. Furthermore, recent advances of crystal lasers at the nanoscale and single crystal light-emitting transistors (LETs) are presented. Finally, an outlook and personal view is provided on the further developments of laser crystals and their applications.

Temperature dependent c-axis hole mobilities in rubrene single crystals determined by time-of-flight

“…Organic semiconductors have been studied for applications in light-emitting diodes, photovoltaics, field effect transistors, chemical sensors, and flexible displays. [1][2][3][4][5][6][7][8][9][10][11] The design and implementation of these materials requires a fundamental understanding of their physical properties. The transport of charge carriers (electrons or holes), in particular, is a key component of device performance.…”

Flexible triboelectric nanogenerator from micro-nano structured polydimethylsiloxane

“…Femtosecond laser fabrication technique has been demonstrated to find application in surface wetting control and infrared enhanced transmission due to the fabricated micronano-strucrutes on the surface [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] . We utilized the high energy intensity of laser to ablate PDMS in order to make micro-nano structures on it.…”

Efficient Red‐Emissive Organic Crystals with Amplified Spontaneous Emissions Based on a Single Benzene Framework

“…[4] Thel asing properties of organic crystals can be studied by means of amplified spontaneous emission (ASE). [4] Thel asing properties of organic crystals can be studied by means of amplified spontaneous emission (ASE).…”