在平面直角坐标系\(xOy\)中，双曲线\(C\)：\(\dfrac{x^{2}}{a^{2}}-\dfrac{y^{2}}{b^{2}}=1(a>0,b>0)\)的左、右焦点分别为\(F_{1}\)，\(F_{2}\)，过\(F_{2}\)且垂直于\(x\)轴的直线与\(C\)交于\(P\)，\(Q\)两点，\(F_{1}Q\)与\(y\)轴的交点为\(R\)，\(F_{1}Q⊥PR\)，则\(C\)的离心率为\((\quad)\)