رفتار وابسته به اندازه سلول های خورشیدی پلیمری تحت اندازه گیری تابش جزئی
|کد مقاله||سال انتشار||مقاله انگلیسی||ترجمه فارسی||تعداد کلمات|
|54365||2011||4 صفحه PDF||سفارش دهید||2743 کلمه|
Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Solar Energy Materials and Solar Cells, Volume 95, Issue 12, December 2011, Pages 3516–3519
We systemically investigate the size-dependent behavior of organic photovoltaics (OPVs) tested under partial illumination. An illumination mask was hypothesized to limit uncertainty associated with device size and illumination conditions when measurements are conducted on laboratory scales. Introducing the illumination mask into the measurement improves the accuracy of JSC; however partial illumination will result in a decrease in VOC and an increase in FF. This last observation is explained by diodes contributing both light and dark currents in the measurement. In addition to loss due to the energy required to separate bound excitons, these results suggest that non-optimized photo–dark current ratio could be another reason why measured VOC is less than ideal VOC.