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2D perovskites based on Formamidinium (FA) hold the potential for excellent stability and a broad absorption range, making them attractive materials for solar cells. However, FA‐based 2D perovskites produced via one‐step processing exhibit poor crystallinity and random quasi‐quantum wells (QWs), leading to subpar photovoltaic performance. In this study, a seed‐induced growth approach is introduced...
The remote appliances control system based on the Android smart phone is designed and realized. A user logs into the smart phone interface, and clicks the buttons gently to send message commands which will be transmitted to home information center through the GSM network. Then the ARM processor recognizes the specified command, and controls the home appliance switches in the wireless radio frequency...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.