کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8021298 | 1517277 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Zinc stannate nanoneedles for CdS/CdSe quantum dot sensitized solar cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
We report zinc stannate (ZTO) nanoneedles obtained through hydrothermal synthesis as a promising photoanode for CdS/CdSe quantum dot sensitized solar cells. The cell based on ZTO/CdS/CdSe with copper sulfide counter electrode recorded the highest conversion efficiency of 3.13% under 1 sun illumination with improved short-circuit current density of 18.96Â mAÂ cmâ2 and open-circuit photovoltage of 0.613Â V which is several times higher than that of CdS sensitized ZTO cells. The high performance is attributed not only to large accumulation of photo-injected carriers but also to the slow process of recombination as one of the reasons for longer electron lifetime, which results in higher current density and open-circuit voltage, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 111, 15 November 2013, Pages 28-31
Journal: Materials Letters - Volume 111, 15 November 2013, Pages 28-31
نویسندگان
M. Mary Jaculine, S. Jerome Das, Hee-Je Kim, Byung Chul Kim, Kook-Hyun Yu, C. Justin Raj,