Detailed insights into the formation pathway of CdS and ZnS in solution: a multi-modal characterisation approach.

The high stability, high availability, and wide size-dependent bandgap energy of sulphidic semiconductor nanoparticles (NPs) render them promising for applications in optoelectronic devices and solar cells. However, the tunability of their optical properties depends on the strict control of their crystal structure and crystallisation process. Herein, we studied the structural evolution during the formation of CdS and ZnS in solution by combining luminescence spectroscopy, synchrotron-based X-ray diffraction (XRD) and pair distribution function (PDF) analyses for the first time.

Therapeutic endometrial scratching and implantation after in vitro fertilization: a multicenter randomized controlled trial.

Objective: To study whether endometrial scratching in the luteal phase before ovarian stimulation increases clinical pregnancy rates in women with one or more previous implantation failures.

Design: A nonblinded multicenter randomized clinical trial.

Setting: Fertility clinics.