Influence of alkyne spacers on the performance of thiophene-based donors in bulk-heterojunction organic photovoltaic cells

A platinum-based photothermal polymer with intermolecular/ligand-to-ligand charge transfer for efficient and sustainable solar-powered desalination

“…39 Only a broad peak at approximately 20° is present for the polymer, which can be attributed to π–π stacking interactions resulting from the relatively planar structure induced by the rigid alkyne linker in the polymer. 40 Thermogravimetric analysis (TGA) is conducted to assess the thermal stability of PffBTPt, as depicted in Fig. 2c.…”

Synthesis and characterization of naphthalenediimide-thienothiophene-conjugated polymers for OFET and OPT applications

“…The addition of an acetylene linker in the main backbone and extension of conjugation in PNDI3-TT-OMe induced both a red-shift and an increase in the absorbance properties of the OSC layer and OPTs. 72 The photosensitivity and photoresponsivity characteristics of the fabricated OPTs were directly impacted by the electron-withdrawing or -donating nature of the functional groups and their light absorption range.…”

Triple-Bond Vibrations: Emerging Applications in Energy and Biological Sciences

“…Similar to the stretching vibration of the nitrile moiety, that arising from the carbon–carbon triple bond also finds increased spectroscopic utility in energy science, especially in the study of charge separation processes and/or energy transfer events in solar cells, − two-dimensional (2D) conjugated graphyne and graphdiyne materials, and other compounds . This is because the CC triple bond is commonly used as an electronic conjugation bridge in these molecules, as well as because its stretching vibrational frequency (ν CC ) and the corresponding molar extinction coefficient (ε CC ) are sensitive to electron density distribution across the triple bond.…”