Herein, Au-NPs (10.8 nm) and Ag-NPs (9.6 nm) are spun coated on the surface of thermally evaporated pentacene thin films. Ag-NPs induced a more pronounced impact on the crystallinity, morphology and optical properties of pentacene rather than Au-NPs. The absorption edge of pentacene is blue-shifted from 1.99 eV to 2.06 eV and 2.69 eV after adding Au-NPs and Ag-NPs, respectively. Pentacene's absorption at wavelength 654.2 nm is enhanced by 5.66% and 34.3% after decorating by Au-NPs and Ag-NPs, respectively. The NPs over the pentacene layer boost the quality of pentacene/n-Si heterojunction and improved the photocurrent by one and two orders of magnitudes after adding Au-NPs and Ag-NPs, respectively. The surface plasmonic resonance of Au and Ag enhanced the photoresponsivity of the fabricated photodetector by 14.75% and 43.87% and subsequent enhancement of efficiency from 7.85% to 36.0% and 91.54%, respectively at wavelength 650 nm.

在此，将Au-NP（10.8nm）和Ag-NP（9.6nm）旋涂在热蒸发的并五苯薄膜的表面上。Ag-NPs对并五苯的结晶度，形态和光学性质的影响比Au-NPs更为明显。在分别添加Au-NP和Ag-NP后，并五苯的吸收边缘从1.99 eV蓝移至2.06 eV和2.69 eV。在用金-纳米粒子和银-纳米粒子修饰后，并五苯在654.2 nm波长处的吸收分别提高了5.66％和34.3％。并五苯层上的NP分别提高了并五苯/ n-Si异质结的质量，并在分别添加Au-NP和Ag-NP后将光电流提高了一个和两个数量级。Au和Ag的表面等离子体共振将所制造的光电探测器的光响应性提高了14.75％和43。