Jacek Kubicki's research while affiliated with Adam Mickiewicz University and other places

... On the long-time, this additional strain proceeds with the reestablishment of the structural equilibrium along with the dimer softening of the neighboring [Ni(dmit) 2 ] − anions as a relaxation process associated with the shortening of the halogen bond (Fig. 5d). Recent works show similar timescale dynamics related to the photoinduced phase transition due to the elastic amplification induced by the volume expansion of the crystal 28 emphasizing that global volume expansion may be related to the dimer softening process, but it is unlikely to drive the phase transition on the timescale we have studied 28,49 . (Supplementary Discussion 3). ...

... The PV-OH is one of the preferred film-forming materials since it is non-toxic and non-carcinogenic and has high thermal stability, high optical permeability, high flexibility, and chemical resistance [17]. Besides, PV-OH exhibits a maximum fluorescence emission when it is exited using a blue wavelength [18,19]. ...

... It should also be noted that in a heterodinuclear Fe− Co photocatalyst the light-independent dissociation of the Co center from the N py atom occurred by simply diluting the catalyst in acetonitrile (MeCN). 23 In such cases, recoordination-driven self-healing of the dinuclear species, i.e. the active catalyst, might only take place efficiently at high concentration. Finally, it should be mentioned that a hybrid system consisting of photosystem I (PSI) and [CoCl(dmgH) 2 (py)] yielded ca. ...

... For example, for pure anatase TiO2 (paste from Dynamo) and TBP in solution, the resulting shift of the TiO2 conduction band edge (towards more negative potentials) reduces the driving force for electron injection, and the JSC of the cells with D205 is then drastically lower than that of MK2 cells (Tables S3 and S4). It should also be noted that D205 cells quickly lose their PCE due to the drop of the photocurrent on the time scale of hours, while MK2 cells keep their PCE constant or sometimes even improve their JSC, probably due to the irradiation effects studied by us recently [44]. For the cells with the D205:MK2 mixtures, a decrease in performance was also observed (but not as much as for the cells with D205 alone); therefore, after 4 h or more, the PCE of the MK2 cells was always the highest. ...

... The spectrum of the trimer after interaction with toluidine blue (Figure 10) presented all the common features of the initial materials and, in addition, the bands located at 1358 cm −1 and 1509 cm −1 , representing the vibration of the newly formed N-O bond between the positively charged nitrogen atom belonging to TB and the negatively charged oxygen atom corresponding to the SO 3 group [65]. The inter-molecular hydrogen bonding evidenced in the hetero-trimer at 3723 cm −1 [66,67] was no longer visible in the complex with TB, proving that the trimer molecules were involved in bonding with toluidine blue molecules and there were less sites available for hydrogen bonding. ...

... [1][2][3] Technological innovations in laser technology, nanotechnology, and photonics are now making the previously unexploited THz frequency band accessible in many fields. [4][5][6][7][8] In particular, THz time-domain spectroscopy (THz-TDS) is emerging as a cuttingedge method to analyze a wide variety of materials with valuable insights into the fingerprint of the molecular structures, building block arrangements, and inter/intramolecular interactions. [9][10][11][12][13] Combining THz spectroscopy with a magnetic field enables the precise characterization of zero-field splitting, providing detailed insights into the electronic structure and magnetic properties of paramagnetic systems. ...

... 7 The essential feature of thioketones is strong fluorescence from the second excited state and negligible one from the first excited state that is a bright example of the Kasha's rule violation. 2,5,8,9 The latter is caused by the large energy gap between S 2 and S 1 states 10 and appears in S 2 long lifetimes of thioketones τ ∼ 10 −9 −10 −11 s. 1,4,7 The second peculiarity of thioketones is the dependence of the phosphorescence quantum yield on the excitation wavelength. The triplets quantum yield, ϕ T , for xanthione (XT) was shown to be close to unity upon the excitation into the first excited state, S 1 , while it is smaller than unity (ϕ T = 0.5−0. ...

... The photoanodes: The photoanodes were prepared in a way similar to that described in our previously published articles [39,40]. Generally, glass plates were cut out from an FTO glass sheet (Sigma Aldrich, 2.2 mm thickness, 13 Ω/sq, Burlington, MA, USA) to a final size of 12 × 17 mm 2 . ...

... All EEMs data were corrected for the influence of inner filter effects (IFE) and Rayleigh masking. Time-resolved fluorescence measurements were made at k ex = 380 nm using the time-correlated single photon counting technique on a picosecond fluorescence spectrophotometer with laser excitation [24,31]. ...

... The superior or satisfactory fit was obtained for all presented kinetic curves, which is summarized in Table S3. The global analysis was performed to obtain wavelength-dependent amplitudes of the indicated time constants using Surface Explorer software from Ultrafast Systems, described in detail elsewhere [49]. All electrochemical studies were carried out using Autolab PGStat 302 N potentiostat-galvanostat systems (Metrohm, Autolab) in a three-electrode system where the investigated sample served as a working electrode, Pt-mesh as a counter electrode and Ag/AgCl/0.1 M KCl as a reference electrode in 0.5 M Na 2 SO 4 electrolyte solution. ...