Results 221 to 230 of about 3,197,005 (354)

Elucidating the origin of open‐circuit voltage in ternary organic solar cells with a nonfullerene and a fullerene acceptor

open access: yesInfoMat, EarlyView.
Fullerenes tend to alloy with polymer:nonfullerene acceptor hosts, yielding composition‐dependent increases in open‐circuit voltage while recombination remains governed by the charge‐transfer state energy and is independent of the nature of the third component.
Dominic Blätte   +14 more
wiley   +1 more source

Spin‐sensitive multifunctional devices based on lateral graphene/MoS2 heterostructures

open access: yesInfoMat, EarlyView.
This study highlights the multifunctional capabilities of devices based on lateral graphene/MoS2 heterostructures and provides theoretical guidance for the design and fabrication of high‐performance rectifiers, spin filters, and optoelectronic devices based on various 2D lateral heterostructures. Abstract Using first‐principles calculations and quantum
Shun Song   +5 more
wiley   +1 more source

Recursive and Cyclic Constructions for Double‐Change Covering Designs

open access: yesJournal of Combinatorial Designs, EarlyView.
ABSTRACT A double‐change covering design (DCCD) is a v $v$‐set V $V$ and an ordered list L ${\mathscr{L}}$ of b $b$ blocks of size k $k$ where every pair from V $V$ must occur in at least one block and each pair of consecutive blocks differs by exactly two elements. It is minimal if it has the fewest blocks possible and circular when the first and last
Amanda Lynn Chafee, Brett Stevens
wiley   +1 more source

Probing Metal Tip‐Induced Bond Weakening of a Reactive Alkyne Center Aligned via a Rigid Triphenylmethane‐Based Tripod on Au(111) by TERS and DFT

open access: yesJournal of Raman Spectroscopy, EarlyView.
We investigate tip‐induced bond weakening of a single alkyne center immobilized and aligned upright on Au(111) using a rigid triphenylmethane‐based tripod. By varying the tip–molecule distance, we observe shifts in the ≡C–H and –C≡C– vibrational bands via ultrahigh vacuum low‐temperature tip‐enhanced Raman scattering (TERS).
Gang Li   +12 more
wiley   +1 more source

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