نتایج جستجو برای: n719
تعداد نتایج: 166 فیلتر نتایج به سال:
In this paper, we synthesized ZnO nanowires in dye sensitized solar cells. The nanowires have been fabricated using fast-microwave-hydrothermal process.We verify the effects of different lengths of ZnO nanowires on efficiency and absorptionofdye sensitized solar cells. J–V curves of the fabricated ZnO nanowire-based mercurochrome-sensitized solar cells indicated that the shortcircuit current de...
Solar cells must accomplish two basic tasks to generate current: absorb incident photons and conduct excited electrons to the circuit. Traditional solar cells made of silicon accomplish these with a single, expensive material. Dye sensitized solar cells (DSSC) are an alternative using separately optimized materials for each task. In short, a dye absorbs the photons and injects them into a semic...
In view of the increased prospects of Zn2SnO4 as an alternative photoanode for dye sensitized solar cells (DSSCs), we synthesized phase pure Zn2SnO4 nanostructures by a cost effective sonochemical technique. In order to establish the stability of this alternative photoanode in DSSCs, we further explored the interaction of the synthesized Zn2SnO4 with commonly used photosensitizers in DSSCs, suc...
In this paper we focus upon the electron injection dynamics in complete nanocrystalline titanium dioxide dye-sensitized solar cells (DSSCs) employing the ruthenium bipyridyl sensitizer dye N719. Electron injection dynamics and quantum yields are studied by time-resolved single photon counting, and the results are correlated with device performance. In typical DSSC devices, electron injection ki...
Artan enerji taleplerin karşılanmasında yenilenebilir türleri açısından popüler olan fotovoltaik teknolojiler üzerine verim artırmaya yönelik çalışmalar yapılmaktadır. Boya duyarlı güneş pilleri yüksek altyapı maliyeti gerektirmeyen yapılar olduğundan boya hücreleri (DSSC) yoğunlaşmıştır. DSSC’de ışığa boya, TiO2 tabakasına tutundurulmaktadır. Kullanım ömrünü tamamlamış NiTi alaşımı endodontik ...
در این پژوهش، ویژگی نوری- الکتریکی و بازده تبدیل فتوالکتروشیمیایی سلول خورشیدی دو وجهی حساس به رنگدانه N719 متشکل از فیلم پلیآنیلین (PANI) و فیلم نانوساختار تیتانیم اکسید (TiO2) موردبررسی قرارگرفته است. الکترود متقابل برپایه PANI طی فرایند بسپارش آنیلین با کاتالیست اسیدی تهیه شد. درحالیکه فیلم TiO2، بهعنوان فتوآند، در دمای پایین بهکمک روش شیمیایی سل-ژل و فرایند لایه...
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