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Register a new userOptical Characterization of Organic Light-Emitting Thin Films in the Ultraviolet and Visible Spectral Ranges
تحليل الشخصيات البصرية لطبقات الإشعاع الضوئي العضوي في النطاقات الأشعة الضوئية والمرئية
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تحديد الخصائص الطيفية لنماذج عالية الكفاءة والنشاط البصري مثل الأجزاء الضوئية العضوية المشعة والطبقات الخفيفة يمكن أن يكون مشكلاً لأن الإشعاع الشامل الذي يصدرها يتم اكتشافه مع إشارات الأشعة الموجية الموحدة المنعطفة والمعطلة، وبالتالي يزعج القياسات للإعادة الضوئية والإعادة المعطلة في طول الموجة الضوئية المستخدمة في التشغيل. كما أنه في الواقع، معظم مجهرات الطيف الضوئي التجارية تطبق التصفية الطيفية قبل أن يصل الأشعة الضوئية إلى العينة، وليس بعدها. في هذا التقرير، نقدم ونناقش الطريقة التي طورناها لتصحيح الأشعة الضوئية التي تتأثر بالإشعاع الضوئي.
The spectrophotometric characterization of high efficiency, optically-active samples such as light-emitting organic bulks and thin films can be problematic because their broad-band luminescence is detected together with the monochromatic transmitted and reflected signals, hence perturbing measurements of optical transmittance and reflectance at wavelengths within the photoexcitation band. As a matter of fact, most commercial spectrophotometers apply spectral filtering before the light beam reaches the sample, not after it. In this Report, we introduce and discuss the method we have developed to correct photometric spectra that are perturbed by photoluminescence.
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