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All Journal HAYATI Journal of Biosciences Jurnal Silvikultur Tropika (JST) Jurnal Floratek Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter BIOTROPIA - The Southeast Asian Journal of Tropical Biology AL KAUNIYAH BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan Journal of Aceh Physics Society Jurnal Penelitian Pendidikan IPA (JPPIPA) Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) Makara Journal of Science Jurnal Natural Journal of Patchouli and Essential Oil Products Jurnal Ilmiah Mahasiswa Pertanian Heca Journal of Applied Sciences Grimsa Journal of Science Engineering and Technology Biosaintifika: Journal of Biology & Biology Education Biosainsdik: Biologi Sains dan Kependidikan
Essy Harnelly
Biology Department, Faculty Of Mathematics And Natural Sciences, Syiah Kuala University
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Journal : Journal of Aceh Physics Society

 1 
Study on Light Absorption of Natural Dye Extracted From Suji Leaf and Senduduk Fruit Onny Ulfa Rahayu; Malahayati T. Hanafiah; Essy Harnelly
Journal of Aceh Physics Society Volume 7, Number 2, May 2018
Publisher : PSI-Aceh

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Abstract

Telah dilakukan penelitian terhadap spektrum serapan cahaya pada sampel dye yang diekstrak dari daun suji (Pleomele angustifolia N.E. Brown), buah senduduk (Melastoma malabathricum L.) dan campuran keduanya. Tujuan dari penelitian ini adalah untuk mempelajari karakteristik serapan cahaya dan celah pita energi dari ketiga sampel. Pengujian dilakukan dengan peralatan UV-Vis untuk mengamati serapan cahaya dan celah pita energinya. Hasil penelitian menunjukkan bahwa nilai celah pita energi dari ketiga sampel berada dalam rentang cahaya tampak. Ekstrak daun suji dan buah senduduk memiliki lebar celah pita masing-masing sebesar 1,75 eV dan 2,12 eV. Ekstrak hasil pencampuran antara daun suji dan buah senduduk memiliki nilai lebar celah pita sebesar 2,06 eV. Ekstrak dye campuran memiliki nilai serapan cahaya dalam rentang 513,5 – 590,0 nm. Rentang ini lebih lebar dibandingkan dengan dye ekstrak daun suji dan buah senduduk yang masing- masing bernilai 672,5 – 705,0 nm dan 513,0 – 575,0 nm. Hal ini menunjukkan bahwa ketiga sampel dye berpotensi untuk diaplikasikan pada sel surya type DSSC (Dye Sensitized Solar Cell), dan semakin lebar rentang serapan cahaya, maka semakin besar pula peluang meningkatnya nilai efisiensi dari sel surya tersebut. The research about light absorption spectrum of dye sample extracted from suji leaves (Pleomele angustifolia N.E. Brown), senduduk fruit (Melastoma malabathricum L.) and mixture of both have been conducted. This research was aim to study the light absorption characteristic and gap energy of the three samples. UV-Vis instrumentation had used to visualize the light absorption and the gap energy. The result showed that the gap energy of the three samples is in the range of visible light. The suji leaves and senduduk fruits extract have gap energy about 1.75 and 2.12 eV, respectively. The mixture extract of both sample has gap energy about 2,06 eV. The mixture dye extract has light absorption range about 513.5 – 590,0 nm, wider than suji leaves and Senduduk fruits dye extract that have light absorption range about 672.5 – 705,0 nm and 513,0 – 575,0 nm, respectively. It is mean that the three samples have the potential to be applied for the Dye Sensitized Solar Cell (DSSC), and the wider light absorption range the higher efficiency of sun light convert to energy. Keywords: Suji leaves, senduduk fruit, light absorbtion, dye  
Co-Authors Adrian Damora Agus Sara Alim Misbullah Amirunnas , Amirunnas Annisa Ammalia Kiti Ardhana Yulisma Arif Habibal Umam Ariqah, Nada Cici Ariska A Dina Firmadiana Fahira, Cut Nathasya Faradhila, Jihan Fauzi, Fazlin Mohd Fauziah . Fenty Ferayanti Fikrul Akhyar Gani, Fadli A. Habib, Ahasan Hairul Basri Hawati Hawati HENDRIX INDRA KUSUMA Hermanto, Feri Eko Idroes, Ghifari Maulana Iqbar Iqbar Irma Dewiyanti Irma Sari ISKANDAR ZULKARNAIN SIREGAR Isnaini, Nadia Itawarnemi, Hilmina Khairan Khairan Kiti, Annisa Ammalia Kusuma, Hendrix Lenni Fitri Lydia Septa Desiyana, Lydia Septa M. Satria Fitri Malahayati T. Hanafiah Martunis - Martunis Martunis Maysarah, Hilda Meutia Zahara Mira Humaira Misrahanum Misrahanum MUHAMMAD ADRIYAN FITRA MUHAMMAD BAHI Muhammad Irfan Muhammad Rusdi Muhammad Subianto Munira, Alya Mutia Zahara Nafissa, Naja Nanda Muhammad Razi Nazaruddin Nir Fathiya NITA TAUHIDA NITA TAUHIDA Nur Fadli Nurur Rahmy Oktaviana, Nurul Onny Ulfa Rahayu Prajaputra, Vicky Rahayu, Sri Riska Ramadhaniaty, Mutia Rauzana, Anita Razief Perucha Fauzie Afidh RIDHA UL FAHMI Rina Sriwati Rinaldi Idroes Rizki Amelia Rizki, Alia Rizky Amelia Rusita Fitri Saida Rasnovi Saida Rasnovi SAIDA RASNOVI Samingan Samingan Sari, Febia Saudah Saudah SITI MARYAM Siti-Azizah, Mohd Nor Sreeramanan Subramaniam Sri Jumiati, Sri Sri Wati Suryadi Suryadi Syaharani, Cut Puspita Salsabila Syahraini, Aigia Syaifullah Muhammad Teuku Rizky Noviandy Ulfa hansri Ar-Rasyid Wira Dharma Wira Dharma Yekki Yasmin Yudi Haditiar Yunita Yunita Yurinda Yurinda ZAINAL ABIDIN MUCHLISIN ZAIRIN THOMY Zairin Thomy Zairin Thomy Zairin Thomy Zairin Thomy Zairin Thomy Zairin Thomy Zairin Thomy Zairin Thomy Zakaria, Rahmad Zulfan Zulkarnain Zulkarnain Zulwanis, Zulwanis Zumaidar Zumaidar Zumaidar