Morphological and optical properties of titanyl phthalocyanine films deposited by supersonic molecular beam epitaxy (SuMBE)

Comparison of organic thin films deposited by supersonic molecular-beam epitaxy and organic molecular-beam epitaxy: The case of titanyl phthalocyanine

“…2 shows AFM images of crystalline TiOPc films on mica, which were grown on 220°C hot mica by the use of SuMBE (a) and OMBE (b). In SuMBE, single crystals grow in a well-shaped manner, with high-quality epitaxy which can be studied by evaluation of the crystal directions (for details see [8]). In contrast, OMBE made crystals are significantly smaller and their shape is less defined.…”

“…Originally, SuMBE was invented for the deposition of inorganic nanocrystalline films. Recently, it was also applied to the deposition of organic molecules, such as quaterthiophene [4][5][6], pentacene [7], and titanyl phthalocyanine [8]. It could be shown that SuMBE is suitable to deposit organic materials with a high degree of order, and recently even the fabrication of an OFET by SuMBE has been demonstrated [9].…”

Organic Photovoltaic Cells Based On Solvent‐Annealed, Textured Titanyl Phthalocyanine/C60 Heterojunctions

“…720 nm in as-deposited thin films. [1,4,[29][30][31][32][33][34][35][36][37][38][39] These Pcs, however, are easily converted to polymorphs, which extends their activity out to ca. 900-1000 nm.…”

“…900-1000 nm. [29][30][31][32][33][34][35][36][37][38][39] The near-IR photoelectrical activities of TiOPc and VOPc as crystalline dispersions in polymer hosts and as vacuum deposited thin films, have been extensively studied. [29][30][31][32][33][34] The broad visible to near-IR Q-band spectrum in the Phase II polymorph of TiOPc ( Fig.…”

“…[29,32,[34][35][36][37][38][39]42,44] We focus here on solvent annealing as a highly controllable means to carry out the Phase I ! Phase II transformation in TiOPc films, as an intermediate step in the formation of TiOPc/ C 60 organic photovoltaics.…”