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Dye Sensitized Solar Cell with Conventionally Annealed and Post-Hydrothermally Treated Nanocrystalline Semiconductor Oxide TiO2 Derived from Sol-Gel Process Yuwono, Akhmad; Munir, Badrul; Ferdiansyah, Alfian; Rahman, Arif; Handini, Wulandari
Makara Journal of Technology Vol 14, No 2 (2010)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.424 KB) | DOI: 10.7454/mst.v14i2.177

Abstract

Dye-sensitized solar cell (DSSC) is one of the very promising alternative renewable energy sources to anticipate the declination in the fossil fuel reserves in the next few decades and to make use of the abundance of intensive sunlight energy in tropical countries like Indonesia. In the present study, TiO2 nanoparticles of different nanocrystallinity was synthesized via sol−gel process with various water to inorganic precursor ratio (Rw) of 0.85, 2.00 and 3.50 upon sol preparation, followed with subsequent drying, conventional annealing and post-hydrothermal treatments. The resulting nanoparticles were integrated into the DSSC prototype and sensitized with an organic dye made of the extract of red onion. The basic performance of the fabricated DSSC has been examined and correlated to the crystallite size and band gap energy of TiO2 nanoparticles. It was found that post-hydrothermally treated TiO2 nanoparticles derived from sol of 2.00 Rw, with the most enhanced nanocrystalline size of 12.46 nm and the lowest band gap energy of 3.48 eV, showed the highest open circuit voltage (Voc) of 69.33 mV.
Effects of Deposition Parameters and Oxygen Addition on Properties of Sputtered Indium Tin Oxide Films Munir, Badrul; Wibowo, Rachmat; Ho, Kim
Makara Journal of Technology Vol 16, No 2 (2012)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (487.41 KB) | DOI: 10.7454/mst.v16i2.239

Abstract

Indium tin oxide (ITO) films were sputtered on corning glass substrate. Oxygen admixture and sputtering deposition parameters were optimized to obtain the highest transparency as well as lowest resistivity. Structural, electrical and optical properties of the films were then examined. Increasing deposition rate and film thickness changed the crystallographic orientation from (222)  to (400) and (440), as well as higher  surface roughness. It was necessary to apply substrate heating during reposition to get films with better crystallinity. The lowest resistivity of 5.36 x 10-4 Ω•cm was obtained at 750 nm film thickness. The films’ resistivity was increased by addition of oxygen up to 2% in the argon sputtering gas. All films showed over 85% transmittance in the visible wavelength range, possible for applications in photovoltaic and display devices. 
RELATIONSHIP BETWEEN THE RANDOM BLOOD GLUCOSE LEVELS DURING ADMISSION AT EMERGENCY ROOM WITH CLINICAL OUTPUT IN ACUTE ISCHEMIC STROKE PATIENTS Munir, Badrul; Rasyid, Harun Al; Rosita, Rizky
Malang Neurology Journal Vol 1, No 2 (2015): July
Publisher : Malang Neurology Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (655.572 KB) | DOI: 10.21776/ub.mnj.2015.001.02.2

Abstract

Background. High blood glucose level occurs on 20-50% acute ischemic stroke patients. Hyperglycemia can worsen neurology disorder of patients.Objective. To find out the relationship between random blood glucose level and clinical outcome on patients with acute ischemic stroke measured with NIHSS.Methods. Observational using stroke registry of acute ischemic stroke patients. There are 38 patients involved in this research.Results. Using Spearman shows an insignificant correlation between random blood glucose level and NIHSS output (p=0.548). However, random blood glucose level and NIHSS input shows a significant correlation (p=0.011). The result of Chi-Square test on correlation between random blood glucose level and NIHSS output shows an insignificant correlation (p=1), in contrast, random blood glucose level and NIHSS input and improvement shows a significant correlation (p=0.024 and p=0.047).Conclusion. There is no correlation between random blood glucose level at initial care and clinical outcome on patients suffering acute ischemic stroke. However, normal random blood glucose level shows had better improvement and they had tendency to get better outcome.
DETERMINANTS AFFECTING THE DEPRESSION OF INFARCTION POST STROKE PATIENTS IN (SAIFUL ANWAR HOSPITAL MALANG) Munir, Badrul; Nasution, Arief Alamsyah; Purnamasari, Yeni
Malang Neurology Journal Vol 2, No 2 (2016): July
Publisher : Malang Neurology Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.464 KB) | DOI: 10.21776/ub.mnj.2016.002.02.3

Abstract

Background. Stroke is a functional disorder of the brain that occurs suddenly with signs and symptoms of both focal and global clinical lasting more than 24 hours, or can lead to death due to circulatory disorders of the brain. Stroke ranks third leading cause of death in Indonesia. Someone with stroke will leading mood disruption that would cause a depression. Objective. To determine the effect on depression of stroke infarction.Methods. The study used descriptive analytic cross-sectional study. 42 samples was selected by consecutive method. The distribution of the sample are 18 males and 24 females, 23 samples below 60 years and 19 samples over 60 years, 13 samples had duration of suffering a stroke less than 6 months and 29 samples above 6 months. The independent variables in this study were age, sex, and duration of suffering a stroke, while the depression is the dependent variable. Depression was assessed using the Hamilton Depression Rating Scale (HDRS). Results. The results used logistic regression test obtained value of (p = 0.021) is significant in age.Conclusion. The age is the determinant affecting the quality of life after stroke infarction.
MANIFESTATIONS OF HIV AIDS IN CASE NEUROLOGY: EPIDEMIOLOGY STUDY AT SAIFUL ANWAR HOSPITAL YEAR 2013-2014 Munir, Badrul; Candradikusuma, Didi
Malang Neurology Journal Vol 1, No 1 (2015): January
Publisher : Malang Neurology Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (438.163 KB) | DOI: 10.21776/ub.mnj.2015.001.01.2

Abstract

Background. Complications of HIV-AIDS cases neurological disorders are quite high and also very high mortality, but so far the data on disease epidemiology in Indonesia is still very limited.Objective. To determine the pattern of HIV-AIDS disease involving the nervous system in patients admitted to Saiful Anwar hospital.Methods. This prospective cohort study with a record of all patients with HIV-AIDS didagnosis manifest neurological disorders treated in an isolation room for HIV-AIDS Saiful Anwar Hospital for 1 year (September 2013- August 2014).Results. During 12 months acquired HIV-AIDS with neurological disorders as many as 23 patients (38.3% of all patients with an infection of the nervous system) with an average age of 48 years. Male gender 47.83%) and 52.17% of women. Number of CD4+ average of 24 / microliter, while the average number of leucocytes 9675/uL, while the most common sequence of disease; 39.1% of cerebral toxoplasmosis, tuberculosis meningoencephalitis 21.7%, 17.4% viral encephalitis, bacterial meningoencephalitis 13%, 4.3% dementia, cerebral abscess 4.3%. The mortality rate is still high, ranging from 57.6%.Conclusion. Manifestations of HIV AIDS in the field of neurology are very high, cerebral toxoplasmosis is the most common diagnosis, and correlated with the levels of CD4+. The mortality rate of HIV-AIDS cases manifesting high neurology.
Current State: The Development of Thin Film Solar Cells Based on Kesteritee Compound Fianti, Fianti; Munir, Badrul; Kim, Kyoo Ho; Amal, Mohammad Ikhlasul
Journal Of Natural Sciences And Mathematics Research Vol 2, No 1 (2016): Volume 2, Nomor 1, 2016
Publisher : Faculty of Science and Technology, State Islamic University Walisongo Central Java

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.2016.1.1.1641

Abstract

Thin film solar cell experience fast development, especially for thin film solar cell CdTe and Cu(In,Ga)Se2 (CIGS). However, the usage of rare element in the nature such as In, Te, and Ga and toxic such as Cd give limitation in the future development and production growth in big scale. Development of other alternative compound with maintain the profit of electronic and optic character which get from CIGS chalcopyrite compound will be explain. Compound of Cu2ZnSnSe4 (CZTSe) is downward compound from CIGS with substitute the In and Ga element with Zn and Sn. The compound kesterite structure can be modified with variation of chalcogen element to get wanted character in solar cell application. Efficiency record of photovoltaic devices conversion used this compound or downward reach 9.7%.©2016 JNSMR UIN Walisongo. All rights reserved.
EFFECTS OF ACUTE STRESS DURATION ON THE RAT BRAIN MAST CELL ACTIVATION Paundralingga, Obed Trinurcahyo Kinantyo; Darkim, Darmawan; Munir, Badrul; Daeng, Bonaventura Handoko
Malang Neurology Journal Vol 3, No 2 (2017): July
Publisher : Malang Neurology Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.995 KB) | DOI: 10.21776/ub.mnj.2017.003.02.4

Abstract

Background. Stress of varying duration and types are known to affect the number and activation level of cerebral mast cells (MCs) via plasma CRH. Although MC number is known not to be increased in acute stress, elevated plasma CRH might still activate brain MCs.Objective. To investigate the effect of acute stress of incremental duration to the activation level of thalamic and hippocampal mast cells using elevated platform test to elicit stress in male Wistar rats.Methods. This research used randomized post-test only control group design with 4 control group of 30, 60, and 90 minute stress exposure. Mast cell activation of the regiotalamus and hippocampus is assessed by histomorphometrics.Results. In the hippocampus, we found a significant difference of MC activation between control and experimental groups (p=0.014; p<0.05) but not among the incremental duration of acute stress. However, MC activation was not different between control and experimental groups in the thalamus.Conclusion. Acute stress exposure increases MC activation without recruiting further MCs in specific cerebral region but the duration of acute stress itself does not affect the activation level.
PERSEPSI ANGGOTA MPU ACEH UTARA TENTANG ASPEK PIDANA PADA PENJUALAN PAKAIAN KETAT Munir, Badrul; Rahmah, Adetia
LEGITIMASI: Jurnal Hukum Pidana dan Politik Islam Vol 8, No 2 (2019)
Publisher : Criminal Islamic Law, Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/legitimasi.v8i2.5856

Abstract

Abstrak Pakaian ketat merupakan tata cara berbusana yang dilarang dalam Islam, karena memperlihatkan bentuk tubuh seseorang wanita. Oleh karena itu kalangan ulama memberikan pandangan terhadap tata cara berbusana ketat tersebut. MPU Aceh Utara yang merupakan lembaga yang mengelurakan fatwa terkait cara bermusana ketat tersebut juga memiliki persepsi bagi para penjual busana ketat tersebut. Penelitian ini bertujuan untuk mengetahui persepsi anggota MPU Aceh Utara terhadap penjualan pakaian ketat dan hukum penjualan pakaian ketat dari sudut pandang Hukum Pidana Islam. Penelitian ini menggunakan metode deskriptif analisis dengan pendekatan penelitian hukum empiris. Subjek penelitian terdiri dari anggota MPU Aceh Utara, masyarakat penjual dan pembeli pakaian ketat. Teknik pengumpulan data terdiri dari wawancara, observasi, studi pustaka dan dokumentasi. Berdasarkan hasil penelitian dapat diketahui bahwa Anggota MPU Kabupaten Aceh Utara berpandangan bahwa penjualan pakaian ketat merupakan suatu perbuatan haram dan harus dikenakan sanksi pidana. Dalam rangka pemberian sanksi pidana kepada penjual pakaian ketat tersebut pihak MPU Kabupaten Aceh Utara telah merancang Qanun pelarangan menjual pakaian ketat. Namun Qanun tersebut belum direalisasi-kan oleh anggota MPU Kabupaten Aceh Utara dikarenakan masih banyak para penjual pakaian ketat yang berargumen bahwa pakaian yang mereka jual bukan untuk dipakai oleh pembeli yang tidak sesuai ukuran antara badan dengan pakaian, melaikan penjual menjual barang dagangan-nya kepada pembeli yang sesuai ukuran. Pertimbanga lain sah dan mubahnya jual beli pakaian ketat di Kabupaten Aceh Utara ini terpenuhinya rukun dan syarat dari jual beli yang telah ditetapkan oleh syari'at serta barang yang dijadikan sebagai obyek transaksi jual beli bukanlah barang yang terlarang di dalam agama Islam. Hukum menjual pakaian ketat ditinjau dari hukum pidana Islam adalah sesuatu yang haram dan tidak sah jual belinya, dikarenakan barang yang dijual bukanlah haram zatnya melainkan adanya penyebab lain yang mengakibatkan orang lain terjerumus kepada dosa, dikarenakan terjadinya zina mata yang menaikkan syahwat seorang laki-laki lantaran melihat struktur tubuh akibat pemakaian celana ketat. Sesuatu yang haram lizzatihi (zatnya) dan lighairiri (karena sebaba lain), maka menjualnya pun juga tidak boleh. Untuk menguatkan larangan pakaian ketat tersebut diharapkan MPU menetapkan qadun yang sudah dirancang. Kata Kunci: Persepsi, Anggota MPU, Pidana, Penjual Pakaian Ketat
FABRIKASI NANOTUBES TiO2 DENGAN TINGKAT NANOKRISTALINITAS TINGGI MELALUI PERLAKUAN KOMBINASI ANIL DAN PASCA-HIDROTERMAL UNTUK APLIKASI SEL SURYA TERSENSITISASI ZAT PEWARNA[Fabrication of Highly Nanocrystalline TiO2 Nanotubes Through a Combination of Pre-Annealing and Hydrothermal Treatment for Dye Sensitized Solar Cell Application] Ferdiansyah, Alfian; Yuwono, Akhmad Herman; Sofyan, Norifon; Kartini, Indriana; Pujianto, Togo Hadi; Munir, Badrul
Metalurgi Vol 27, No 2 (2012): Metalurgi Vol. 27 No. 2 Agustus 2012
Publisher : Pusat Penelitian Metalurgi dan Material - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (735.875 KB) | DOI: 10.14203/metalurgi.v27i2.149

Abstract

FABRIKASI NANOTUBES TiO2 DENGAN TINGKAT NANOKRISTALINITAS TINGGI MELALUIPERLAKUAN KOMBINASI ANIL DAN PASCA-HIDROTERMAL UNTUK APLIKASI SEL SURYATERSENSITISASI ZAT PEWARNA. Dewasa ini struktur nanotubes telah mendapat perhatian yang sangatbesar karena memiliki rasio luas permukaan yang tinggi. Hal ini penting dalam aplikasinya sebagai elektroda selsurya tersensitasi zat pewarna (dye sensitized solar cell, DSSC). Pada penelitian ini telah difabrikasi nanotubesTiO2 melalui teknik hidrotermal standar dimana serbuk nano TiO2 P25 Degussa dilarutkan pada larutan alkalinsodium hidroksida berkonsentrasi tinggi di dalam otoklaf tersegel. Untuk meningkatkan nanokristalinitas,dilakukan sebuah modifikasi dimana proses anil konvensional dikombinasikan dengan pasca hidrotermal. Detailstruktur, morfologi dan kristalinitas diuji dengan XRD, spektroskopi Raman, SEM dan TEM, sedangkan sifatoptik dari nanotubes diinvestigasi dengan spektroskopi UV-Vis. Hasil investigasi menunjukkan bahwa denganmemberikan kombinasi anil konvensional dan pasca hidrotermal pada nanotubes, nanokristalinitas dapatditingkatkan secara signifikan dan pada saat yang sama integritas struktur rongga (hollow) tetap terjaga. Untuksampel nanotubes yang sebelumnya diberikan anil 150 °C, ukuran kristalit anatase bertambah dari 6,93 sampai7,82 nm setelah perlakuan pasca-hidrotermal 80-150 °C. Peningkatan nanokristalinitas lebih signifikanditunjukkan ketika temperatur anil dinaikkan sampai 300 °C kemudian dilanjutkan pasca-hidrotermal yang sama,menghasilkan peningkatan ukuran kristalit mulai dari 17,20 sampai 18,30 nm. Energi celah pita yang dihasilkannanotubes berbanding terbalik dengan ukurun kristalit, dimana nilai terendah sebesar 3,19 eV didapatkan dariukuran kristalit terbesar yaitu 18,30 nm. Nanotubes ini juga memberikan sirkuit tegangan terbuka pada divaisDSSC hasil fabrikasi sebesar 108 mV.AbstractFABRICATION OF HIGHLY NANOCRYSTALLINE TiO2 NANOTUBES THROUGH A COMBINATIONOF PRE-ANNEALING AND HYDROTHERMAL TREATMENT FOR DYE SENSITIZED SOLAR CELLAPPLICATION. In the recent years TiO2 nanotube structure has attracted a great attention due to its very highsurface area to volume ratio. This property plays an important role on the dye sensitized solar cell electrodesapplications. In this study, TiO2 nanotubes have been fabricated through hydrothermal technique by dissolvingDegussa P25 TiO2 nanopowder in a highly concentrated alkaline solution of sodium hydroxide into a sealedautoclave. In order to improve nanocrystallinty of TiO2 nanotubes structure, a modification was made bycombining conventional annealing process and hydrothermal post. Details of the structure, morphology andcrystallinity of products were analized by XRD, Raman spectroscopy, SEM and TEM, while the opticalproperties of the nanotubes was examined by UV-Vis spectroscopy. The investigation result showed thatenhancing nanocrystallinity while at the same time maintaining the integrity of the nanotube hollow structurecan be obtained by the combined process of conventional annealing and post-hydrothermal treatment. For thenanotube samples which have been previously annealed at 150 °C, the crystallite size of anatase TiO2 increasedfrom 6.93 to 7.82 nm after post-hydrothermal treatment of 80-150 °C. A more significant enhancement in the142 | Majalah Metalurgi, V 27.2.2012, ISSN 0216-3188/ hal 141-150nanocrystallinity can be achieved when the annealing temperature was raised to 300 ° C, followed by posthydrothermal.This resulted in the crystallite size of anatase TiO2 nanotubes increased from 17.20 to 18.30 nm.The band gap energy of resulting nanotubes is inversely proportional to crystallites size, where the lowest valueof 3.19 eV obtained from the largest crystallite size is 18.30. In the DSSC fabrication device, this nanotubes alsoshown the highest open-circuit voltage of 108 mV.
Profil Penegakan Diagnosis dan Stadium Penyakit Pasien Meningitis Tuberkulosis yang Dirawat di Rumah Sakit Dr. Saiful Anwar Malang Harahap, Herpan Syafii; Munir, Badrul
Jurnal Kedokteran Vol 5 No 2 (2016)
Publisher : Faculty of Medicine Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Latar belakang: Tuberkulosis saat ini masih merupakan masalah kesehatan global. Meningitis tuberkulosis merupakan bentuk tuberkulosis di sistem saraf pusat yang paling sering ditemukan. Saat ini belum ada data mengenai angka kejadian penyakit ini di Kota Malang. Penelitian ini bertujuan untuk mengetahui profil penegakan diagnosis dan stadium penyakit pasien meningitis tuberkulosis yang dirawat di Rumah Sakit dr. Saiful Anwar (RSSA) Malang. Metode: Penelitian ini menggunakan rancangan potong lintang, dikerjakan selama bulan November-Desember 2014. Data diperoleh dari rekam medis pasien meningitis tuberkulosis yang dirawat di Rumah Sakit dr. Saiful Anwar (RSSA) Malang selama periode November 2013-Oktober 2014. Dilakukan penentuan klasifikasi diagnosis meningitis tuberkulosis menurut hasil konsensus The international tuberculous meningitis workshop dan penentuan klasifikasi stadium penyakit menurut British Medical Research Council (BMRC). Hasil: Jumlah subyek dalam penelitian ini 27 orang, dengan rician untuk subyek laki-laki dan perempuan masing-masing sebanyak 15 orang (55,56%) dan 12 orang (44,44%). Proporsi subyek dengan klasifikasi diagnosis possible dan probable masing-masing sebesar 70,37% dan 29,63%, dengan stadium penyakit I, II, dan III masing-masing sebesar 3,70%, 70,37%, dan 25,93%, dan dengan koinfeksi HIV sebesar 25,93%. Uji Kolmogorov-Smirnov terhadap menunjukkan tidak ada perbedaan proporsi stadium penyakit yang bermakna antara subyek laki-laki dan perempuan (p=0,516). Uji Chi-Square menunjukkan tidak terdapat perbedaan yang bermakna dalam hal klasifikasi penyakit (p=0,215) dan keberadaan koinfeksi HIV (p=0,298) antara subyek penelitian laki-laki dan perempuan. Kesimpulan: Subyek penelitian dengan klasifikasi diagnosis probable dan stadium penyakit III memiliki proporsi yang paling besar. Tidak terdapat perbedaan klasifikasi diagnosis, stadium penyakit, dan keberadaan koinfeksi HIV berdasarkan jenis kelamin.