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An asymmetric wound dressing acts as a skin‐like structure serves as a protective barrier between a wound and its surroundings. It allows for the absorption of tissue fluids and the release of active substances at the wound site, thus speeding up the healing process. However, the production of such wound dressings requires the acquisition of specialized tools, expensive polymers, and solvents that...
Increasing the fill factor (FF) and the open‐circuit voltage (VOC) simultaneously together with non‐decreased short‐circuit current density (JSC) are a challenge for highly efficient Cu2ZnSn(S,Se)4 (CZTSSe) solar cells. Aimed at such target in CZTSSe solar cells, a synergistic strategy to tailor the recombination in the bulk and at the heterojunction interface has been developed, consisting of atomic‐layer...
The microscopic charge transport and recombination processes behind the widely concerned photoelectric hysteresis in the perovskite solar cell have been investigated with both in situ transient photovoltage/photocurrent measurements and the semiconductor device simulation. Time‐dependent behaviors of intensity and direction of the photocurrent and photovoltage are observed under the steady‐state bias...
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