eprintid: 138301 rev_number: 22 eprint_status: archive userid: 217921 dir: disk0/00/13/83/01 datestamp: 2025-09-09 02:16:30 lastmod: 2025-09-09 02:16:30 status_changed: 2025-09-09 02:16:30 type: thesis metadata_visibility: show creators_name: Ayumi Luthfiani Nurdin, - creators_name: Eka Cahya Prima, - creators_name: Endi Suhendi, - creators_nim: NIM2102812 creators_nim: NIDN0026069001 creators_nim: NIDN0001057907 creators_id: ayumiluthfiani@upi.edu creators_id: ekacahyaprima@upi.edu creators_id: endis@upi.edu contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_name: Eka Cahya Prima, - contributors_name: Endi Suhendi, - contributors_nidn: NIDN0026069001 contributors_nidn: NIDN0001057907 contributors_id: ekacahyaprima@upi.edu contributors_id: endis@upi.edu title: OPTIMASI KONSENTRASI PREKURSOR PEROVSKITE BERBASIS CsPbBr3 UNTUK MENINGKATKAN EFISIENSI SEL SURYA ispublished: pub subjects: L1 subjects: Q1 subjects: QC divisions: FIS full_text_status: restricted keywords: Kata kunci: CsPbBr₃, sel surya perovskite, konsentrasi prekursor, UV–Vis, SEM, J–V. Keywords: CsPbBr₃, perovskite solar cell, precursor concentration, UV–Vis, SEM, J–V. note: https://scholar.google.com/citations?view_op=new_profile&hl=en ID SINTA Dosen Pembimbing: Eka Cahya Prima: 5977482 Endi Suhendi: 5976806 abstract: Penelitian ini bertujuan untuk mendapatkan gambaran mengenai pengaruh variasi konsentrasi prekursor terhadap sifat optik, morfologi, dan kinerja sel surya perovskite berbasis CsPbBr₃. Proses fabrikasi dilakukan menggunakan metode two-step sequential deposition, yaitu deposisi lapisan PbBr₂ diikuti konversi menjadi CsPbBr₃ melalui larutan CsBr. Variasi konsentrasi yang digunakan adalah 1,0 M; 1,2 M; 1,4 M; 1,6 M; dan 1,8 M. Hasil karakterisasi Ultraviolet-Visible (UV–Vis) Spectroscopy menunjukkan bahwa konsentrasi 1,6 M memiliki absorbansi tertinggi pada panjang gelombang karakteristik CsPbBr₃. Hasil karakterisasi Scanning Electron Microscopy (SEM) memperlihatkan morfologi paling kompak dan homogen dengan surface coverage hampir sempurna. Hasil pengukuran karakterisasi J–V menunjukkan bahwa sel surya yang dibuat dengan konsentrasi prekursor 1,6 M menghasilkan efisiensi tertinggi sebesar 6,339 × 10⁻⁷ % dibandingkan variasi lain, dengan short circuit current density (Jsc) yang lebih besar dan fill factor yang stabil. Pada konsentrasi 1,8 M, meskipun absorbansi meningkat, namun efisiensi menurun akibat resistansi seri yang tinggi dan terbentuknya aglomerasi butir. Hasil–hasil ini menunjukkan bahwa konsentrasi prekursor yang menghasilkan untuk sel surya perovskite berbasis CsPbBr3 yang optimum adalah 1,6 M. This research aims to investigate the effect of precursor concentration variation on the optical properties, morphology, and performance of CsPbBr₃-based perovskite solar cells. The fabrication process was carried out using the two-step sequential deposition method, consisting of PbBr₂ layer deposition followed by conversion into CsPbBr₃ through CsBr solution. The precursor concentrations used were 1.0 M, 1.2 M, 1.4 M, 1.6 M, and 1.8 M. Ultraviolet–Visible (UV–Vis) Spectroscopy characterization showed that the 1.6 M concentration exhibited the highest absorbance at the characteristic wavelength of CsPbBr₃. Scanning Electron Microscopy (SEM) analysis revealed the most compact and homogeneous morphology with nearly complete surface coverage. J–V measurement results indicated that the device fabricated with a 1.6 M precursor concentration achieved the highest efficiency of 6.339 × 10⁻⁷ %, compared to other variations, with a higher short circuit current density (Jsc) and stable fill factor. At 1.8 M, although absorbance increased, the efficiency decreased due to higher series resistance and grain agglomeration. These findings demonstrate that the optimum precursor concentration for CsPbBr₃-based perovskite solar cells is 1.6 M. date: 2025-08-28 date_type: published institution: Universitas Pendidikan Indonesia department: KODEPRODI45201#Fisika_S1 thesis_type: other thesis_name: other official_url: https://repository.upi.edu/ related_url_url: https://perpustakaan.upi.edu/ related_url_type: org citation: Ayumi Luthfiani Nurdin, - and Eka Cahya Prima, - and Endi Suhendi, - (2025) OPTIMASI KONSENTRASI PREKURSOR PEROVSKITE BERBASIS CsPbBr3 UNTUK MENINGKATKAN EFISIENSI SEL SURYA. S1 thesis, Universitas Pendidikan Indonesia. document_url: http://repository.upi.edu/138301/1/S_FIS_2102812_Title.pdf document_url: http://repository.upi.edu/138301/2/S_FIS_2102812_Chapter1.pdf document_url: http://repository.upi.edu/138301/3/S_FIS_2102812_Chapter2.pdf document_url: http://repository.upi.edu/138301/4/S_FIS_2102812_Chapter3.pdf document_url: http://repository.upi.edu/138301/5/S_FIS_2102812_Chapter4.pdf document_url: http://repository.upi.edu/138301/6/S_FIS_2102812_Chapter5.pdf document_url: http://repository.upi.edu/138301/7/S_FIS_2102812_Appendix.pdf