A solution-processable hole transporting layer (HTL) is developed using in situ formation of 2D vanadyl phosphate (VP) layered on 2D reduced graphene nanosheet (VP-rGO) for high-efficiency organic solar cells (OSCs). For the reduction of graphene oxide (GO), irradiation with electron beam was used, and for the exfoliation of VP and the blend of VP and rGO, the sonication was used. To investigate the feasibility of VP-rGO, produced by simple method for mass production, as a HTL, the surface, chemical element and electrical properties were carried out and we fabricated organic solar cells (OSCs) based on PTB7-th:PC₇₁BM with VP-rGO as a HTL. The 2D/2D VP-rGO hybrid material specially takes advantage of both high work function of VP and good conductivity of rGO. This result leads to considerable improvement of performance in OSCs based on VP-rGO, compared with OSCs based on the PEDOT:PSS.

通过在2D还原石墨烯纳米片（VP-rGO）上原位形成2D磷酸氧钒酯（VP）来开发可溶液处理的空穴传输层（HTL），以用于高效有机太阳能电池（OSC）。为了还原氧化石墨烯（GO），使用电子束照射，对于VP的剥离以及VP和rGO的混合物，使用超声处理。为了研究通过简单的大规模生产方法生产的VP-rGO作为HTL的可行性，进行了表面，化学元素和电学性质的研究，并基于PTB7-th：PC ₇₁制备了有机太阳能电池（OSC）。使用VP-rGO作为HTL的BM。2D / 2D VP-rGO混合材料特别利用了VP的高功函和rGO的良好导电性。与基于PEDOT：PSS的OSC相比，此结果导致基于VP-rGO的OSC的性能得到了显着改善。