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Fabrikasi Sel Surya Tersensitisasi Dye dengan ZnO Nanorod sebagai Fotoanoda dan Material Spiro sebagai Hole Transport Material (HTM) Afifah Nurida; Ayunita Chintia; Sheila Sakkyananda; Annisa Aprilia; Tuti Susilawati; Cukup Mulyana; Lusi Safriani
JIIF (Jurnal Ilmu dan Inovasi Fisika) Vol 1, No 2 (2017)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (519.937 KB) | DOI: 10.24198/jiif.v1i02.11195

Abstract

Dalam penelitian ini, kombinasi antara oksida logam ZnO nanorod dan TiO2 mesopori telah berhasil digunakan sebagai fotoanoda pada sel surya tersensitisasi warna. Selain itu, untuk meningkatkan difusi muatan di dalam sel, digunakan spiro-TPD (N,N’- Bis-(3-methylphenyl)-N,N’-bis(phenyl)-9,9’-spirobifluorene) sebagai lapisan penghantar hole (HTM-hole transport material). Lapisan tipis ZnO dengan/tanpa aluminium (ZnO:Al seed layer (0 wt%, 0,5 wt% dan 1 wt%)) digunakan sebagai seed layer (lapisan penumbuh) dan dideposisikan di atas substrat FTO menggunakan teknik spin coating. Kemudian, ZnO nanorod ditumbuhkan di atas FTO/ZnO:Al seed layer menggunakan metode self-assembly dengan merendam FTO/ZnO:Al dalam larutan prekursor pada suhu 100°C selama 150 menit menggunakan oven elektrik. ZnO nanorod yang dihasilkan kemudian dikarakterisasi menggunakan SEM, dan hasil pengukurannya memperlihatkan bahwa  ZnO nanorod yang ditumbuhkan di atas FTO/ZnO:Al (0,5 wt%) memiliki diameter rata – rata yang terkecil sebesar 123 nm dan estimasi panjang sekitar 1,11 μm. Hasil spektrum XRD memperlihatkan bahwa seluruh sampel ZnO nanorod memiliki struktur heksagonal wurtzite dengan orientasi bidang hkl (002), dan memiliki ukuran bulir sekitar 15-25 nm. Kombinasi ZnO nanorod dan TiO2 mesopori digunakan sebagai fotoanoda pada DSSC dengan struktur FTO/ZnO:Al/ZnO nanorod/TiO2/ruthenizer 535-bis TBA-dye/Spiro-TPD/ mosalit/Pt/FTO.  Efisiensi tertinggi yang berhasil dicapai adalah 0,46% di bawah penyinaran 30 mW/cm2 dengan menggunakan ZnO:Al seed layer (0,5 wt%).
Studi proses sintesis serbuk nano ZnO beserta karakterisasi Choiry Ghina Afrilia; Annisa Aprilia; Lusi Safriani; Ayi Bahtiar; Davi Putri Hanavi
JIIF (Jurnal Ilmu dan Inovasi Fisika) Vol 3, No 2 (2019)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (608.593 KB) | DOI: 10.24198/jiif.v3i2.23063

Abstract

Studi pembuatan beserta karakterisasi serbuk ZnO berukuran sub-nano telah berhasil dilakukan. Penelitian ini dilakukan untuk membuat lapisan tipis ZnO yang berasal dari serbuk ZnO yang disintesis menggunakan metode sol-gel pada bersuhu rendah (150°C). Selain itu penelitian ini bertujuan untuk mengetahui pengaruh proses pencucian ketika sintesis, yang berkaitan dengan keberhasilan dalam pembentukan kristal ZnO pada temperatur rendah. Untuk mengetahui sifat optik, morfologi serta struktur dari serbuk ZnO, dilakukan beberapa karakterisasi menggunakan spektroskopi UV-Vis, spektroskopi FTIR, spektroskopi fotoluminesensi (PL), scanning electron microscopy (SEM), tunnelling electron microscopy (TEM) dan difraksi sinar-X (XRD). Berdasarkan spektrum absorbansi dan fotoluminesensi, energi gap nanopartikel ZnO sekitar 3,25 eV. Puncak emisi yang teramati pada panjang gelombang daerah ultra-violet (381 nm) berkaitan dengan nilai energi gap. Sedangkan puncak emisi pada daerah hijau-kuning menunjukkan defect berupa oxygen vacancy dan surface trap. Hasil karakterisasi FTIR, ikatan Zn-O telah terbentuk dan mendominasi, meskipun masih adanya keberadaan gugus karbonil yakni ikatan C=O dan ikatan C-O. Hal tersebut kemungkinan besar berkaitan dengan proses pemanasan yang hanya mencapai 150°C. Sedangkan, kemurnian tinggi dimiliki film tipis yang ditandai dengan ketidakberadaannya gugus karbonil pada spektrum FTIR dan hanya menyisakan gugus Zn-O saja. Berdasarkan karakterisasi SEM dalam bentuk film tipis, ukuran partikel yang dapat teramati berkisar 50 nm. Sedangkan berdasarkan hasil pengukuran menggunakan TEM pada serbuk ZnO, ukuran partikel terkecil berkisar 15 nm. Berdasarkan hasil karakterisasi XRD, serbuk nano dan lapisan tipis ZnO memiliki struktur kristal hexagonal wurtzite. Berdasarkan dari hasil penelitian ini diketahui bahwa proses sintesis dengan pemanasan suhu rendah dapat menghasilkan serbuk ZnO berukuran nano, yang selanjutnya dapat dibuat dalam bentuk lapisan tipis ataupun sesuai dengan kebutuhan aplikasi.
Pengalokasian Dana Bagi Hasil Dari Sumber Daya Alam Tambang Antara Pemerintah Pusat Dan Daerah Fransiska N.G. Purba; Annisa Aprilia; Raka Anggara; Arsenius Felix Kusbintoro
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 12 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8078627

Abstract

The enactment of Law No. 23/2014 on Regional Government, regulates the provisions of profit sharing funds, namely the acquisition of funds through state budget revenues and allocated to producing regions in terms of percentage digits to minimize disparities in financial capacity between the central and regional governments. Central finance refers to the financial management and administration of financial resources carried out by the central government or central institutions of a country. This entails the collection of revenues and expenditures, budget planning, financial supervision, and financial reporting related to the activities of the central government. Meanwhile, the Profit Sharing Fund is a profit sharing mechanism based on a predetermined percentage between the central and local governments. This money usually comes from sources of state revenue such as taxes, excise, or natural resource revenues. For national mining policy, it has a crucial value, resulting in regional autonomy becoming an added point for national mining policy makers, especially when accompanied by central and regional financial balance. This article examines more specifically the policies, problems, optimization and DBH system of mining natural resources.
Pengolahan Ikan Sebagai Nugget Untuk Pencegahan Stunting di Desa Obel-Obel, Kecamatan Sambelia, Kabupaten Lombok Timur Fania Rahman; Nazri Al Ayyubi; Muhamad Taufik Hidayat; Ahmad Hasa Fahrurozi; Annisa Aprilia; Vini Vionadhia Indriyani; Citra Wulandari; Soleha Az Zahra; Serlu Ayu Cahyani; Salsabila Mustaan; Muhammad Yusup
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 2 (2023): April-Juni
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i2.4526

Abstract

Stunting is a chronic malnutrition problem caused by insufficient nutritional intake for a long time due to the provision of food that does not match nutritional needs. The problem of stunting occurs in various villages, one of which is Obel-obel Village. Obel-obel Village is one of the villages in Sambelia District, East Lombok Regency, West Nusa Tenggara Province. The problem of stunting in Obel-obel Village occurs in several families. This village is also a village that has high food potential, but the processing process is said to be lacking, therefore the Obel-obel Village KKN team tried a new variation, namely processing marine fish nuggets to prevent stunting.
Photocurrent Density Enhancement of DSSC with Existence of ZnO in TiO2 Based Photoanode Lusi Safriani; Nurfitriani Nurfitriani; Ayunita Chintia Celline; Annisa Aprilia; Yukio Furukawa
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 13, No 2 (2023): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v13i2.74821

Abstract

One of the important components of a dye-sensitized solar cell (DSSC) is photoanode which plays a critical role serving as the center of conversion energy. Photoanode consists of transparent conducting substrate, a semiconductor layer, and dyes molecules as sensitizers. Titanium dioxide (TiO2) is widely used as a photoanode because it is a mesoporous and stable material despite its high recombination rate. To reduce the recombination rate and improve electron transport, TiO2 is combined with other materials such as ZnO to form TiO2/ZnO composites. ZnO is a good choice because it has higher electron mobility than TiO2 to inhibit recombination. The synthesis process of TiO2/ZnO composites was carried out using the sol-gel method with variations in the weight percentage of ZnO. The TiO2/ZnO composite was then applied as a photoanode in DSSC. The J-V measurement results shows that the DSSC with TiO2/ZnO 25wt% composite layer as the photoanode produced the highest efficiency of 0.86%. This increase in efficiency was due to an increase in the photo-current of photoanodes that have more ZnO content. The presence of ZnO leads to faster-moving electron transport, therefore reducing recombination and increasing efficiency.
Low Temperature Calcination of TiO2 and ZnO Particle Film and Evaluation of Their Photocatalytic Activity Inovasari Islami; Lutfi Naufal Ramadhika; Lusi Safriani; Ayi Bahtiar; Fitrilawati Fitrilawati; Nowo Riveli; Annisa Aprilia
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 13, No 2 (2023): IJAP Volume 13 ISSUE 02 YEAR 2023
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v13i2.76028

Abstract

In this study, TiO2, ZnO, and TiO2/ZnO films were prepared under low calcination temperature and characterized to observe their properties related to photocatalytic performance. The samples were prepared by mixing the gel phase of ZnO precursor, TiO2 anatase powder, triton-x 100, and acetylacetone to produce a paste form for the deposition process. The resulting paste was then deposited by screen printing onto a glass substrate and subjected to calcination at 250C to facilitate the ZnO crystallization and remove other additive materials. XRD analysis confirms that the formation of ZnO and TiO2 crystals was assisted, although their crystallinity was lower than corresponding particulate forms. The lower crystallinity seems to be related by additive materials remains. The surface morphology of each sample was observed by scanning electron microscopy (SEM) imaging, Brunauer–Emmett–Teller (BET), and contact angle examination. Interestingly, both TiO2 and ZnO layers tend to have a hydrophobic surface meanwhile TiO2/ZnO has a hydrophilic surface. BET analysis revealed that ZnO has the highest specific surface area due to a nanosized. FTIR spectra confirmed the presence of appropriate chemical bonds in the ZnO and TiO2 and other additive materials, such as alkyl groups. The photoluminescence (PL) spectrum shows a blue emission associated with intrinsic defects such as vacancies and interstitials of Zn and Ti in all samples. Differences in the photocatalytic performance of film and particulate form for each material were observed and analyzed. All samples' structures, morphology, and PL characteristics were then correlated to their photocatalyst behavior for methylene blue degradation.
The Electrical Characteristic Analysis of Reduced Graphene Oxide in Pt-Free DSSC Using Single Diode Model and Electrochemical Impedance Spectroscopy Aprilia, Annisa; Yuliasari, Fitri; Siregar, R.E; Syakir, Norman; Bahtiar, Ayi; Safriani, Lusi; Hidayat, Sahrul; Hanipah, Iip; Fitrilawati, Fitrilawati
POSITRON Vol 12, No 2 (2022): Vol. 12 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v12i2.54272

Abstract

We studied the characteristic of reduced graphene oxide (rGO) as a counter electrode (CE) in Pt-free dye-sensitized solar cell (DSSC) using single diode model equation based on current density-voltage (J-V) measurement. The electrical characteristics of DSSC was investigated by electrochemical impedance spectroscopy (EIS) in order to knowing the catalytic properties of rGO as counter electrode. The rGO thin film as CE was deposited on fluorine-doped tin oxide (FTO) substrate and stacked with FTO/TiO2/ruthenium dye/mosalyte/rGO/FTO DSSC structure. The rGO film was obtained from GO (graphene oxide) film that was thermally reduced at 200°C for one hour under argon flow. The performance of DSSC with rGO as CE was characterized by current-voltage measurement and the interface between each layer was observed by Electrochemical Impedance Spectroscopy (EIS).   The device efficiency (η) of DSSC that used GO and rGO film as CE are 0.09% and 3.43%, respectively. DSSC parameters such as series resistance (RS) shunt resistance (RSH), and ideality factor (n) were obtained from J-V curve which analyzed using single diode model equation. All samples have a Rs value of 2 indicates that all devices have a good ohmic contact. The RSH of device using rGO-1mg/ml is increase (from 2850 to 3670 Ω.cm2) compared with GO indicate that thermal reduction is successes. The rGO film shows a comparable performance to Pt-conventional CE thus it is a good candidate as alternative of DSSC counter electrode.
Pengaruh Kecerdasan Intelektual, Kecerdasan Emosional, Kecerdasan Sosial, Kecerdasan Spiritual Dan Beban Kerja Terhadap Kinerja Pegawai Pada Balai Besar Pengawas Obat Dan Makanan (BBPOM) Di Mataram Annisa Aprilia; Santi Nururly
Populer: Jurnal Penelitian Mahasiswa Vol. 2 No. 3 (2023): September : Jurnal Penelitian Mahasiswa
Publisher : Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/populer.v2i3.1169

Abstract

This study aims to determine the effect of Intellectual Intelligence, Emotional Intelligence, Social Intelligence, Spiritual Intelligence and Workload on Employee Performance at the Center for Drug and Food Control (BBPOM) in Mataram. The population in this study were employees of the Center for Drug and Food Control (BBPOM) in Mataram in the field of testing and inspection, totaling 43 employees using Non Probability Sampling (Purposive Sampling) where the sample can represent the characteristics of the desired population. Data processing in this study uses SEM – PLS (Structural Equation Modeling – Partial Least Square). Based on the research results, intellectual intelligence has a significant effect on employee performance, emotional intelligence has a significant effect on employee performance, social intelligence has a significant effect on employee performance, spiritual intelligence has a significant effect on employee performance and workload has a significant effect on employee performance. the most dominant variables that affect the variables of intellectual intelligence, spiritual intelligence, social intelligence, and emotional intelligence.
The Relationship Between Parental Parenting and Student Learning Outcomes In Public High School 6 Padang Aprilia, Annisa; Yulastri, Asmar; Gusnita, Wiwik; Indrayeni, Wiwik
Jurnal Pendidikan Tata Boga dan Teknologi Vol 5, No 2 (2024): Jurnal Pendidikan Tata Boga dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptbt.v5i2.15498

Abstract

This study is motivated by the researcher's observation of diverse parenting patterns, which even affect student learning outcomes. This study aims to describe parenting patterns, learning outcomes, and analyze the relationship between parenting patterns and student learning outcomes at SMK Negeri 6 Padang. The research method used in this study is to use quantitative methods with a correlational research approach, the population in this study were all grade XI students of SMK Negeri 6 Padang in the 2023/2024 school year totaling 454 students. The sampling technique used was simple random sampling. Data collection is done with google form and using a Likert scale that has been tested for reliability. Data were analyzed with descriptive and correlation analysis. Based on the results of statistical calculations that parental parenting is in the moderate category (53.7%) and the most dominant one used by parents is democratic parenting, student learning outcomes are in the moderate category (35.4%). the results of the research were conducted using Pearson product moment correlation analysis, it is known that the correlation coefficient of parental parenting (X) with learning outcomes (Y) is 0.606 which is included in the strong category. The results of hypothesis testing obtained > namely 3,514> 1,664 and a significance value of 0.001 <0.05. It can be concluded that there is a significant relationship between parenting patterns and student learning outcomes and the hypothesis results are Ha accepted and Ho rejected. 
PENGARUH JENIS PREKURSOR TERHADAP KARAKTERISTIK PARTIKEL ZnO BESERTA PENGUJIAN SIFAT FOTOKATALITIKNYA AMANDA, NUR APRILIA; RAMADHIKA, LUTFI NAUFAL; BAHTIAR, AYI; SAFRIANI, LUSI; APRILIA, ANNISA
Jurnal Material dan Energi Indonesia Vol 12, No 01 (2022)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1098.019 KB) | DOI: 10.24198/jme.v12i01.40511

Abstract

Material ZnO disintesis menggunakan prekursor berbeda, yaitu zinc acetate dihydrate dan zinc nitrate hexahydrate dalam aplikasinya sebagai material aktif fotokatalis. Kedua material disintesis menggunakan metode sol-gel. Struktur material dikarakterisasi menggunakan XRD dan FTIR, morfologi menggunakan TEM dan BET, komposisi menggunakan EDS, sifat optik menggunakan PL Spectroscopy dan UV-Vis Spectroscopy, serta dispersitas menggunakan Zeta Potential. Hasil karakterisasi menunjukkan material ZnO yang terbentuk telah memiliki struktur wurtzite dan bermorfologi spherical. Masih terdapat ikatan-ikatan karbonil yang merupakan residu dari proses sintesis yang belum sepenuhnya hilang. Komposisi atom, dispersitas, dan band gap untuk kedua material tidak jauh berbeda. Pada ZnO-A terdapat defect berupa zinc vacancies. Ukuran partikel ZnO-A lebih kecil daripada ZnO-N, sehingga luas permukaan spesifiknya pun jauh lebih besar. Pengujian sifat fotokatalitik dilakukan menggunakan larutan metil biru 3,2 ppm selama 45 menit di bawah sinar matahari. Didapat nilai konstanta laju degradasi sebesar 0,0604/menit untuk ZnO-A dan 0,0763/menit untuk ZnO-N, serta besar efisiensi 94% untuk ZnO-A dan 97% untuk ZnO-N.Kata kunci: fotokatalis, serbuk ZnO, sol-gel, prekursor
Co-Authors AA Sudharmawan, AA Adelia Septyani Afifah Nurida Afifah Nurida, Afifah Agustin P. Mastiti Ahmad Hasa Fahrurozi Aidil Halim Lubis Ali Ikhwan AMALIA ROHMAH FAJARIAH AMANDA, NUR APRILIA Andi Juanna Anggara, Raka Aprilia Tripuspita ARIF BAGUS PRAKOSO Arsenius Felix Kusbintoro Arsyad, Wa Ode Sukmawati Askariyya, Javida Asmar Yulastri Asnawi, Melan Angriani Ayi Bahtiar Ayunita Chintia Ayunita Chintia Celline Ayunita Chintia, Ayunita Azizah, Euis Siti Nur Baiq Rindang Aprildahani Chairul Amriyah CHOIRY GHINA AFRILIA Choiry Ghina Afrilia CHOIRY GINA AFRILIA Citra Wulandari Cukup Mulyana Cukup Mulyana Cukup Mulyana Cukup Mulyana Damanik, Risda Meilisa Davi Putri Hanavi Dea Khairum DERI LASMANA Desiana N, Nadia Detya Mopalanda Sianipar Eda, Sukma Jan ELVI MAILANI Era Octafiona Euis Siti Nurazizah Faizal, Ferry FAJARIAH, AMALIA ROHMAH Fania Rahman Ferry Faizal Fitri Yuliasari Fitrilawati Fitrilawati Fransiska N.G. Purba GIYA PRANATA Gracia, Michaela Gusnita, Wiwik Hanipah, Iip HERI FERNANDO HERLAN RUDIYANTO Hutabarat, Michaela Gracia Indrayeni, Wiwik Inovasari Islami Irwan Yantu Khairum, Dea Kharismayanda, Mardhiyah Kusbiantoro, Arsenius Felix Liu Kin Men Lusi Safriani Lutfi Naufal Ramadhika LUTFI NAUFAL RAMADHIKA Mastiti, Agustin P. Michaela Gracia Hutabarat Mubarokah, Laelatul Muhamad Taufik Hidayat MUHAMMAD ARYA REVANSYAH MUHAMMAD RIZAL MUHAMMAD RIZKY NURAWAN Muhammad Yusup Nazri Al Ayyubi Ningrum, Indri Ayu Norman Syakir Norman Syakir NORMAN SYAKIR Norman Syakir, Norman Nowo Riveli Nowo Riveli NUR APRILIA AMANDA Nur Laely, Safhira Nurazizah, Euis Siti Nurfitriani Nurfitriani Nyoman Sridana Permana, Diki Putri, Onma Nikita R. N. Lamuda R.N. Lamuda Rahmat Hidayat RAHMAT HIDAYAT Rahmawati, Annisa Nur Raka Anggara RAMADHIKA, LUTFI NAUFAL Ratna Yulis Tyaningsih RESTI RAHAYU DWI AGUSTINI REVANSYAH, MUHAMMAD ARYA Rhesti Nurlina Suhanto RISDIANA RISDIANA, RISDIANA RIZKIA MUTIARA S Setianto, S Sahrul Hidayat Salsabila Mustaan Santy Nururly Serlu Ayu Cahyani Setianto Setianto SHEILA SAKKYANANDA Sheila Sakkyananda Sheila Sakkyananda, Sheila Siahaan, Helena Mora Sianipar, Detya Mopalanda Siregar, R.E Sitti Safiatus Riskijah Soleha Az Zahra Sri Suryaningsih Suhardi Suhariyanto Suhariyanto Syafiul Anam Syahrul Azmi Tangdililing, Reti Ranggina Thantawi, Tubagus Rifqy Togar Saragi, Togar Tuti Susilawati Tuti Susilawati Tuti Susilawati Utami Yuliani Utami, Nabilah Putri Victoria, Elinda Vini Vionadhia Indriyani Waode Sukmawati Arsyad Wijaya, Yulia Lestari Winna Prasita Primawati Wirdiyan, M. Alfi Witardi, Reynaldi Jodi YATI MARYATI Yudha Rahman Yukio Furukawa Yulia Lestari Wijaya Yuliani, Utami YULIASARI, FITRI