Graphene oxide nanoribbons for efficient and stable polymer solar cells are discussed. With controllable bandgap, good solubility and film forming property, graphene oxide nanoribbons serve as a new class of excellent hole extraction materials for efficient and stable polymer solar cells outperforming their counterparts based on conventional hole extraction materials, including PEDOT:PSS.

Carol Cronje, of Imali Cash Loans, said an unprecedented number of grandmothers began arriving at her office seeking loans to pay for baby funerals. Later, in a casual conversation with the local undertaker she discovered that he had conducted over a dozen infant burials between January and March this year. ‘People often borrow money for funerals, but they never really borrow to bury small chil...

Abstract A short squeeze occurs if borrowed shares are recalled and the seller is unable to find another source of shares. This forces terminate a position early. For most stocks, probability very low. Short squeezes, however, not unusual for hardest borrow stocks. these trading costs from squeezes high have significant impact on returns selling. hard-to-borrow sellers also miss out abnormal be...

2. BACKGROUND A team comprised of the Center for Natural Language Processing (CNLP) at Syracuse University and the Digital Learning Sciences (DLS) at the University Corporation for Atmospheric Research recently completed a project that integrated many digital library tools into one, which is called Metadata Assignment and Search Tool (MAST). 1 This tool enables libraries and museums to efficien...

Highly porous polypyrrole (PPy)-nanocellulose paper sheets have been evaluated as inexpensive and disposable electrochemically controlled three-dimensional solid phase extraction materials. The composites, which had a total anion exchange capacity of about 1.1 mol kg(-1), were used for extraction and subsequent release of negatively charged fluorophore tagged DNA oligomers via galvanostatic oxi...

CONSPECTUS: Two-dimensional (2D) materials have attracted much attention in the past decade. They offer high specific surface area, as well as electronic structure and properties that differ from their bulk counterparts due to the low dimensionality. Graphene is the best known and the most studied 2D material, but metal oxides and hydroxides (including clays), dichalcogenides, boron nitride (BN...