A Novel Vible-Light Photodetector Based on Chlorophyll-Modified ZnO Nanoparticles

Abstract

This paper reports a new material for visible-light detection based on chlorophyll-modified ZnO nanoparticles. ZnO nanoparticles were synthesized via a hydrothermal process. Chlorophyll was extracted from Katuk (Sauropus androgynus) leaves, an Indonesian vegetable which has many benefits for health. ZnO nanopartcles were mixed with the extracted chlorophyll, later to be formed into a film onto ITO coated glass substrate by the casting method. The hybrid chlorophyll-modified ZnO nanoparticle film was characterized for its optical absorption and current-voltage (I-V) property. A visible-light response of the hybrid chlorophyll-modified ZnO nanoparticle film can be seen on the I-V curves as well as a dynamic response. Full Text: PDF References D.J. Sornalatha, S. Bhuvaneswari, S. Murugesan, P. Murugakoothan, "Solochemical synthesis and characterization of ZnO nanostructures with different morphologies and their antibacterial activity", Optik 126, 63 (2015). CrossRef K.L. Foo, M. Kashif, U. Hashim, M.E. Ali, "Sol–gel derived ZnO nanoparticulate films for ultraviolet photodetector (UV) applications", Optik 124, 5373 (2013). CrossRef M. Procek, T. Pustelny, "A study of gas sensing properties of ZnO nanostructures activated by UV light", Phot. Lett. Poland 7, 50 (2015). CrossRef J. A. Anta, E. Guille?n, R. Tena-Zaera, "ZnO-Based Dye-Sensitized Solar Cells", J. Phys. Chem. C 116, 11413 (2012). CrossRef V. Sanna, N. Pala, V. Alzari, D. Nuvoli, M. Carcelli, "http://dx.doi.org/10.1016/j.matlet.2015.10.031", Mat. Lett. 162, 257 (2016). CrossRef C.O. Chey, X. Liu, H. Alnoor, O. Nur, M. Willander, "Fast piezoresistive sensor and UV photodetector based on Mn-doped ZnO nanorods", Phys. Status Solidi RRL 9(1), 87 (2015). CrossRef A. Kondapi, "Development of chlorophyll-protein complex nanoparticles for light harvesting and solar cell application", Int. J. Nanoparticles 7(3/4), 307 (2014). CrossRef S. Ashoka, G. Nagaraju, C.N. Tharamani, G.T. Chandrappa, "http://dx.doi.org/10.1016/j.matlet.2009.01.054", Mat. Lett. 63, 873 (2009). CrossRef J.B. Zvezdanovic, D.Z. Markovic, S.M. Milenkovic, "Zinc(II) and copper(II) complexes with pheophytin and mesoporphyrin and their stability to UV-B irradiation: Vis spectroscopy studies", J. Serb. Chem. Soc. 77(2), 187 (2012). CrossRef X. Lian, Y. Li, D. An, Y. Zou, Q. Wang, N. Zhang, "Synthesis of porous ZnO nanostructures using bamboo fibers as templates", Mat. Science-Poland 32(3), 514 (2014). CrossRef S. Wein, J. Zhao,W. Du, "Synthesis, characterization and acetone-sensing properties of bristlegrass-like ZnO nanostructure", Ceramics Internat. 41, 769 (2015). CrossRef