کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8032650 1517957 2018 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selective excitation of window and buffer layers in chalcopyrite devices and modules
ترجمه فارسی عنوان
تحریک انتخابی از لایه های پنجره و بافر در دستگاه ها و ماژول های کلکوپیریت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Window and buffer layers in chalcopyrite devices are well known to affect junctions, conduction, and photo-absorption properties of the device. Some of these layers, particularly “buffers,” which are deposited directly on top of the absorber, exhibit metastable effects upon exposure to light. Thus, to understand device performance and/or metastability, it is sometimes desirable to selectively excite different layers in the device stack. Absorption characteristics of various window and buffer layers used in chalcopyrite devices are measured. These characteristics are compared with emission spectra of common and available light sources that might be used to optically excite such layers. Effects of the window and buffer absorption on device quantum efficiency and metastability are discussed. For the case of bath-deposited Zn(O,S) buffers, we conclude that this layer is not optically excited in research devices or modules. This provides a complimentary mechanism to the chemical differences that may cause long time constants (compared to devices with CdS buffers) associated with reaching a stable “light-soaked” state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 655, 1 June 2018, Pages 70-76
نویسندگان
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