کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7938378 | 1513115 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of a novel intermediate band photovoltaic material with wide spectrum solar absorption based on Ti-substituted CuGaS2
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigation of a novel intermediate band photovoltaic material with wide spectrum solar absorption based on Ti-substituted CuGaS2 Investigation of a novel intermediate band photovoltaic material with wide spectrum solar absorption based on Ti-substituted CuGaS2](/preview/png/7938378.png)
چکیده انگلیسی
Intermediate band solar cells (IBSC) have been proposed in order to substantially increase the efficiency of solar cells. A novel intermediate band (IB) photovoltaic material of Ti-substituted CuGaS2 (Ti-CGS2) has been successfully fabricated via a facile solvothermal method. By part substitution of Ga atoms with Ti in the CGS2 chalcopyrite crystal, a narrow partially filled IB was introduced and two additional absorption bands at 710 nm (IB â CBM, 1.75 eV) and 1350 nm (VBM â IB, 0.92 eV) were directly observed in the UV-vis-NIR spectrum. Element Ti, acting as trivalent substituents confirmed by the X-ray photoelectron spectroscopy (XPS), forms an IB from the lowest subshell of its 3d levels. Photoelectrochemical investigations of the Ti-CGS2 verified the wide-spectrum solar response from the IB effect. This material leads to lower-energy photon absorption, which could be a promising candidate for the high-efficiency solar cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 103, May 2014, Pages 480-487
Journal: Solar Energy - Volume 103, May 2014, Pages 480-487
نویسندگان
Xinxin Lv, Sui Yang, Mingwei Li, Hongxing Li, Jie Yi, Minghao Wang, Guanghai Niu, Jianxin Zhong,