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首页> 外文期刊>RSC Advances >Integration of a silk fibroin based film as a luminescent down-shifting layer in ITO-free organic solar cells
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Integration of a silk fibroin based film as a luminescent down-shifting layer in ITO-free organic solar cells

机译：将丝素蛋白基薄膜集成为不含ITO的有机太阳能电池中的发光下移层

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摘要

We report here a study on the integration of the silk fibroin (SF) protein in organic solar cells. The intrinsic low toxicity, natural availability, biodegradability, water processing, good film forming properties and capability to be doped with functional molecules of SF biopolymer inspired us to integrate it as a transparent and inert or functional bottom layer in organic solar cells. Water stable, optically transparent, smooth and homogeneous SF thin films (thickness similar to 400 nm) were successfully prepared on glass and characterized. Then ITO-free bulk heterojunction (BHJ) solar cells employing P3HT: PC61BM as a standard active layer and a highly conductive PEDOT: PSS formulation as a semi-transparent anode were deposited over the SF films. As a result, the power conversion efficiency (PCE) of all silk-integrated BHJ solar cells was comparable to the references on bare glass. c as confirmed by the spectral response measurements, by using a water soluble stilbene derivative (Stb). The photovoltaic performance of all SF-based devices was significantly stable over time, overcoming the problems of the ITO-based reference cells after 70 days. Finally, flexible SF-integrated ITO-free solar cells were successfully fabricated on PET substrates.
机译：我们在这里报告了有关丝素蛋白（SF）蛋白在有机太阳能电池中整合的研究。固有的低毒性，自然可利用性，生物可降解性，水加工性，良好的成膜性以及被SF生物聚合物功能分子掺杂的能力，促使我们将其集成为有机太阳能电池中的透明，惰性或功能性底层。在玻璃上成功制备了水稳定，光学透明，光滑且均匀的SF薄膜（厚度类似于400 nm）并进行了表征。然后在SF薄膜上沉积采用P3HT：PC61BM作为标准有源层和高导电性PEDOT：PSS配方作为半透明阳极的无ITO本体异质结（BHJ）太阳能电池。结果，所有丝集成BHJ太阳能电池的功率转换效率（PCE）与裸玻璃上的参考功率相当。通过使用水溶性二苯乙烯衍生物（Stb），由光谱响应测量结果证实。随着时间的推移，所有基于SF的设备的光伏性能都非常稳定，克服了70天后基于ITO的参考电池的问题。最后，在SF基板上成功制造了柔性，无SF集成的ITO的太阳能电池。

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