• SLN biopsy to access breast cancer metastasis has multiple complications. • Radiomics uses features extracted from medical images to characterise intratumour heterogeneity. • We combined T -FS and DWI textural features to predict SLN metastasis non-invasively.
Thin films of LiMn204 and LiCo02 have been prepared by pulsed laser deposition on heated stainless steel substrates. These films have thicknesses from 0.2 to 1.5 p.m and are crystalline without postdeposition annealing. The films' electrochemical properties were studied with cyclic voltammetry current pulse measurements, and galvanostatic charge/discharge techniques. Film capacity densities as high as 56 and 62 p.Ah/cm2-p.m were measured for Li.Mn204 and LiCo02, respectively. Chemical diffusivities on the order of 2.5 x 10 -11 and 1 x 10-10 were measured for LiMn204 and LiCo02, respectively. Some of the films were cycled electrochemically for up to 300 cycles against lithium metal in 1 M LiC1O4/propylene carbonate electrolyte, demonstrating the promise of pulsed laser deposition for the production of cathode films for rechargeable lithium microbatteries.
Sufficient lead iodide (PbI 2 ) in perovskite films effectively passivates defects and enhances device performance. However, excess largegrained PbI 2 clusters tend to be randomly distributed in the perovskite layer, which mitigate the positive effect of the PbI 2 . Here, we first modulated the distribution and size of PbI 2 clusters by functionalizing the buried interface of 4,4′-diaminodiphenyl sulfone hydroiodide (DDSI 2 ). As a multifunctional modifier, DDSI 2 can optimize the energy level of tin oxide (SnO 2 ) and passivate the buried interface defects via −NH 3 + and S�O functional groups. Moreover, the hydrogen bonding and coordination between DDSI 2 and perovskite retard the crystal growth rate and alleviate the lattice stress, thereby improving the quality of the perovskite and modulating the distribution of PbI 2 . Consequently, the DDSI 2 -modified device displays a power conversion efficiency of 24.10% and a storage stability of 1800 h. We demonstrate a unique strategy for the rational control of PbI 2 for efficient and stable perovskite solar cells.
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