The present study demonstrates that precursor passivation is an effective approach for improving the crystallization process and controlling the detrimental defect density in high-efficiency CuZnSn(S,Se) (CZTSSe) thin films. It is achieved by applying the atomic layer deposition (ALD) of the tin oxide (ALD-SnO) capping layer onto the precursor (Cu-Zn-Sn) thin films. The ALD-SnO capping layer was observed to facilitate the homogeneous growth of crystalline grains and mitigate defects prior to sulfo-selenization in CZTSSe thin films.
View Article and Find Full Text PDFPurpose: The standard principle of total knee arthroplasty (TKA) targeted by most orthopaedicians is the alignment of the lower limb in a neutral mechanical axis. However, for several patients the neutral mechanical alignment is not normal. Aligning these patients to a neutral mechanical axis may not result in desirable outcomes as it may feel unnatural.
View Article and Find Full Text PDFWe report an ultrasensitive sandwich-type electrochemical immunosensor to detect the breast cancer biomarker CA 15-3. Amine-functionalized composite of reduced graphene oxide and FeO nanoparticles (MRGO-NH) was used as an electrochemical sensing platform material to modify the electrodes. The nanocomposite comprising Pt and FeO nanoparticles (NPs) anchored on multiwalled carbon nanotubes (Pt-FeO-MWCNTs-NH) was utilized as a pseudoenzymatic signal-amplifying label.
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2023
Cation incorporation emerges as a promising approach for improving the performance of the kesterite CuZnSn(S,Se) (CZTSSe) device. Herein, we report indium (In) doping using the chemical bath deposition (CBD) technique to enhance the optoelectronic properties of CZTSSe thin-film solar cells (TFSCs). To incorporate a small amount of the In element into the CZTSSe absorber thin films, an ultrathin (<10 nm) layer of InS is deposited on soft-annealed precursor (Zn-Sn-Cu) thin films prior to the sulfo-selenization process.
View Article and Find Full Text PDFIntroduction: Patient-specific instruments (PSI) have been shown to be a good solution in getting accurate bone cuts in total knee arthroplasty (TKA) in many studies. However, the need for an extra CT/MRI makes the existing PSI method costly and unsafe. X-ray-based PSI can solve these problems, if proven to be accurate.
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