نتایج جستجو برای: n719

تعداد نتایج: 166  

Journal: :Nanomanufacturing 2023

In this paper, three types of optical textured glass substrates were prepared at the glass/transparent conductive oxide interface using polydimethylsiloxane nanoimprint lithography to increase conversion efficiency dye-sensitized solar cells (DSSCs). There textures: nanotexture, microtexture, and micro/nano double texture. terms characteristics, it was confirmed that reflectance all lower than ...

Journal: :Journal of Materials Science: Materials in Electronics 2021

Dye-sensitized solar cells have shown great potential in low and self-powered nano/micro-scale applications, due to their fabrication costs, semi-transparency the visible spectrum, diffused light harvesting capabilities, lead-free structure. However, DSSC efficiencies are still relatively limited absorption capabilities active mesoporous layer. The current study demonstrates an attempt boost ov...

Journal: :Coatings 2022

Dye-sensitized solar cells (DSSCs) were developed by exploiting the photovoltaic effect to convert energy into electrical energy. The photoanode layer thickness significantly affects semiconductor film’s ability carry electronic charges, adsorb sensitizing dye molecules, and lower recombination of photo-excited electrons injected semiconductor. This study investigated dependence zinc oxide (ZnO...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم پایه 1393

در این پژوهش به بررسی عملکرد رنگدانه کورکومین در سلول¬ های خورشیدی رنگدانه ای پرداخته شده است. سلول هایی با رنگدا¬نه کورکومین براساس نانوذرات zno که به روش رفلاکس سنتزگردید¬ و یک سلول نیز بارنگدانه n719 ساخته و با محاسبات dft وtd-dft که توسط برنامه gaussian09 صورت گرفت به مقایسه این دو رنگدانه پرداخته شد¬. عملکرد رنگدانه در کنار نانوذرات tio2 نیز مورد بررسی قرار گرفت. پارامتر های بیان کننده¬ی ع...

Journal: :Coatings 2022

Ruthenium N719 is a well-known material used as the dye in commercial dye-sensitized solar cell (DSSC) devices. However, it poses risks to human health and environment over time. On other hand, titanium dioxide (TiO2) has low electron mobility high recombination losses when photoanode this photovoltaic technology device. In addition, using harms health. As an alternative sensitizer compensate o...

Journal: :Dyes and Pigments 2021

With the emergence of Internet Things, dye-sensitized photovoltaics (DSPVs) have attracted considerable interest for indoor energy harvesting over past decade. In this study, a cosensitization approach is applied by mixing ruthenium-based dyes to achieve an increased DSPV performance under low-intensity light conditions. The optimized cosensitized exhibits excellent power-conversion efficiency ...

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