Acenes such as pentacene have been widely studied over the last decade because of their highly promising potential as organic semiconductors, and have found use in devices such as photovoltaics and field-effect transistors. Nonetheless, the locked s-cis diene units within acenes are an Achilles' heal, in that many acenes readily dimerize and react with oxygen. As a possible alternative, we have...

We demonstrate the growth of defect-free zinc-blende GaAs nanomembranes by molecular beam epitaxy. Our growth studies indicate a strong impact of As4 re-emission and shadowing in the growth rate of the structures. The highest aspect ratio structures are obtained for pitches around 0.7-1 μm and a gallium rate of 1 Å s(-1). The functionality of the membranes is further illustrated by the growth o...

Perovskites are a promising class of semiconductor materials, which being studied intensively for their applications in emerging new flexible optoelectronic devices. In this paper, device manufacturing and characterization quasi-interdigitated back-contact perovskite solar cells fabricated on substrates studied. The photovoltaic parameters the prepared (FQIBC PSCs) obtained front- rear-side ill...

We present the synthesis of seven new organic co-poly-ynes P1–P7 incorporating phenothiazine (PTZ) motif and evaluate their optoelectronic properties performance in polymer light-emitting diodes (PLEDs) solar cells (PSCs).

Due to their non-toxic nature, biodegradability and production from renewable resources, research has shown an increasing interest in the use of biosurfactants in a wide variety of applications. This paper reviews the characterization of rhamnolipid and sophorolipid biosurfactants based on their hydrophilicity/hydrophobicity and their ability to form microemulsions with a range of oils without ...

Article history: Received: 14.01.2014. Received in revised form: 01.03.2014. Accepted: 12.03.2014. Optoelectronic coupler, characterized by long life and high reliability, is one typical kind of optoelectronic devices. Accelerated degradation testing is mostly utilized to assess optoelectronic coupler storage life. However, in engineering, integrated optoelectronic coupler may be nagged with th...