A sensing platform utilizing silver enhancement and P-i-N silicon nanowire photovoltaic device array

• Main Authors: Lee, Wan-Chi, 李婉琪
• Other Authors: Sheu, Jeng-Tzong
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/01882484041690654435

碩士 === 國立交通大學 === 材料科學與工程學系奈米科技碩博士班 === 101 === A sensing platform integrated silver enhancement and P-i-N silicon nanowires (SiNWs) photovoltaic array was presented. Immunogold silver staining (IGSS) technique was adopted to enhance the biotin-streptavidin interaction on the glass slide. Then, the transparency of glass slide was characterized by the P-i-N silicon nanowires photovoltaic array under a light source with intensity of 31.8 mW/cm2. Compared with the results from world leading research team, the electrical characteristics of the P-i-N silicon nanowire photovoltaic array shows excellent diode behavior in dark, and exhibits an VOC of 0.53 V, a JSC of 0.7 mA/cm2, a fill factor (FF) of > 71%, and a maximum efficiency of 0.83% under illumination. A dynamic range of 4 orders of magnitude in streptavidin detection was demonstrated and the limit of detection (LOD) about 4 pM was achieved. We suspect that the proposed sensing platform can act as a fast, convenient, and stable sensing tool.