An organicâaqueous interfacial reaction at room temperature has been employed to synthesize large-area self-assembled films consisting of PbSe single crystallites. The use of the films for the low-cost fabrication of IR-photodetectors has been explored. (111)-oriented single crystallites of PbSe self-assemble to form robust large-area films. The near-infrared photoresponse of the film measured at room temperature showed large responsivity and gain owing to trap-associated mechanisms. Low-cost, mild reaction conditions and tunability of the nature of deposits make the present strategy useful for synthesizing large-area films of functional materials for possible opto-electronic applications.
室温下的有机-
水界面反应已被用来合成由 PbSe 单晶组成的大面积自组装薄膜。人们已经探索了使用薄膜来低成本制造红外光电探测器。 (111) 取向的 PbSe 单晶自组装形成坚固的大面积薄膜。由于陷阱相关机制,在室温下测量的薄膜的近红外光响应显示出较大的响应度和增益。低成本、温和的反应条件和沉积物性质的可调性使得本策略可用于合成大面积的功能材料薄膜,以用于可能的光电应用。