Graphitic carbon nitride (g-C₃N₄) nanosheets laminated TiO₂–B nanowire composites (TNW/GCN) were synthesized adopting a simple pyrolysis process (500 °C), using melamine and hydrothermally grown TiO₂–B NWs at different weight ratios. The TNW/GCN composites were used as efficient photoanode material in dye sensitized solar cells (DSSCs) and the systematic changes in the cell performance were investigated. The experimental results demonstrated a realistic improvement in the overall DSSC efficiency after modification of TiO₂–B NWs with g-C₃N₄. Incorporation of optimum amount of g-C₃N₄ in the composite material could enhance the short circuit photocurrent density (J_SC) as well as open circuit voltage (V_OC). The DSSC based on TNW/GCN-10 photoanode enhanced the photocurrent conversion efficiency to 5.12% compared to 3.71% with TNW/GCN-0 photoanode (using pure TiO₂–B NWs). This increased cell performance could be attributed to the suppression of recombination of the photogenerated electrons/hole charge pairs initiated by optimum g-C₃N₄ lamination of TiO₂–B NWs photoanodes, in spite of subsequent lowering in the dye loading capacity.

通过简单的热解工艺（500°C），使用三聚氰胺和水热生长的TiO ₂ -B NW，以不同的重量比合成了石墨化的氮化碳（gC ₃ N ₄）纳米片，层压了TiO ₂ -B纳米线复合材料（TNW / GCN）。TNW / GCN复合材料被用作染料敏化太阳能电池（DSSC）的有效光阳极材料，并研究了电池性能的系统变化。实验结果表明，用gC ₃ N ₄改性TiO ₂ -B NWs后，总DSSC效率得到了实际改善。掺入最适量的gC ₃ N ₄复合材料中的碳纳米管可以提高短路光电流密度（J _SC）和开路电压（V _OC）。基于TNW / GCN-10光电阳极的DSSC将光电流转换效率提高到5.12％，而使用TNW / GCN-0光电阳极（使用纯TiO ₂ -B NWs）则提高了3.71％。尽管随后降低了染料装载量，但这种提高的电池性能可能归因于抑制了由TiO ₂ -B NWs光电阳极的最优gC ₃ N ₄层压引发的光生电子/空穴电荷对的重组。