Semiconducting Plant Extracts of Cucurbita Pepo L. Seeds for Facile, Inexpensive, Fully Solution-Processed, Transparent Photodetector Fabrication

Authors : Muzeyyen Savas, Beyza Bozkurt, Dilber Akcan, Ruby Phul, Talha Erdem, Zeliha Soran Erdem

Pages : 372-382

View : 115 | Download : 85

Publication Date : 2024-08-31

Article Type : Research Paper

Abstract :Solution-processable materials attract significant interest in the development of high-efficiency, cost-effective optoelectronic devices. However, widely used high-performance materials often suffer from high toxicity, low biocompatibility, and synthesis procedures hazardous to human health and the environment. As cost-effective, sustainable alternatives to the conventional solution-processed semiconductors, here we evaluate the potential of plant extracts. Within this framework, here we present photodetectors employing the extract of Cucurbita pepo L. (pumpkin) seeds. The extracted material exhibits a strong absorption peak in the UV region (~280 nm) and a weaker absorption band between 400-450 nm. Its fluorescence spectrum covers the blue-green region of the spectrum and possesses sharp and dominant peaks at 650 nm and 730 nm. For photodetector fabrication, we drop-cast the extract acting as the active material between two electric contacts formed by treating a conductive film of silver nanowires and zinc oxide nanoparticles using a surgical blade. The resulting device demonstrates a maximum responsivity of ~1.61 mA/W at 5 V bias voltage. Being fully solution-processed, transparent photodetectors, this proof-of-concept device employing plant extracts showcases a new material system in active optoelectronic devices as sustainable, inexpensive, and easy-to-handle alternatives to their conventional counterparts.
Keywords : Kolay, Ucuz, Tamamen Çözeltiyle İşlenmiş ve Şeffaf Fotodetektör Üretimi için Cucurbita Pepo L Tohumlarının Yarı İletken Bitki Özütleri