کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6457451 1420664 2017 6 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Band engineering of a Si quantum dot solar cell by modification of B-doping profile
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Band engineering of a Si quantum dot solar cell by modification of B-doping profile
چکیده انگلیسی


- A Si quantum dot (QD) heterojunction solar cell with a p-type Si QD layer on an n-type crystalline Si wafer was developed.
- A Si QD solar cell having a Si QD layer with a double-step B-doping profile was suggested to enhance the vertical charge carrier transport in the Si QD layer.
- B-doping profile change from a single-step to double-step, the PCE of the Si QD solar cell increased from 14.41 % to 14.98 %.

A Si quantum dot (QD) heterojunction solar cell with a p-type Si QD layer on an n-type crystalline Si wafer was developed, and the effect of the boron (B)-doping profile in the Si QD layer was investigated. The doping concentration of B in the p-type Si QD layer was optimized at 5.71×1021 atoms/cm3, and high power conversion efficiency (PCE) of 14.15% was achieved at the optimized B concentration. A Si QD solar cell having a Si QD layer with a double-step B-doping profile was suggested to enhance the vertical charge carrier transport in the Si QD layer. As a result of the B-doping profile change from a single-step to double-step, the PCE of the Si QD solar cell was increased from 14.41% to 14.98%. In the Si QD solar cell with a double-step B-doping profile, quantum efficiency analysis showed that the improvement in short circuit current within short wavelength region under 650 nm can be related with the additional built-in E-field caused by the band structure modification.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 159, January 2017, Pages 80-85
نویسندگان
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