The Covalent Binding of Photosensitive Dyes to Monocrystalline Silicon Surface and Their Spectral Re

• 作 者: 郭志新 郝纪祥 张祖训 曹子祥
• 机 构: Department of Chemistry, Northwest University, Xi'an 710069, PRC,Department of Chemistry, Northwest
• 出 处: Science in China,Ser.B
• 发表日期: 1993年12期
• 关键词: maxima covalently sandwich bonded bonding have bonds wafer distilled intermedia

A chemical method is proposed to bond photo-sensitive dyes directly to the surface of polished monocrystalline silicon. A methincyanine dye and a trimethincyanine dye have been bonded covalently onto silicon surface through Si—N bond, which are characterized by XPS technique and laser Raman spectra. Photovoltaic effect has been observed with the In/dye/n-Si sandwich devices composed of the dye-bonded n-Si wafers. Significant spectral response shows the characteristic absorptance maxima of the bonded dyes.

A chemical method is proposed to bond photo-sensitive dyes directly to the surface of polished monocrystalline silicon. A methincyanine dye and a trimethincyanine dye have been bonded covalently onto silicon surface through Si-N bond, which are characterized by XPS technique and laser Raman spectra . Photovoltaic effect has been observed with the In / dye / n-Si sandwich devices composed of the dye-bonded n-Si wafers. Significant spectral response shows the characteristic absorptance maxima of the bonded dyes.