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Multi-site Passivation of ZnO Metal Oxides via Biomolecules for Efficient and Highly Stable Organic Solar Cells

Chinese Journal of Chemistry 2024年第14期42卷 1582-1592页

作者： irfan ismail Maria Khalil Xiaomei Gao Xingze Chen Muhammad Jawad Rong Huang Zhiyun Li Emmanuel Acheampong Tsiwah Wei-shi Li Qun Luo Chang-Qi Ma i-Lab&Printable Electronics Research Center Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)SuzhouJiangsu215123 China University of Chinese Academy of Sciences(UCAS) Beijing100040 China School of Nano-Tech and Nano-Bionics University of Science and Technology of China(USTC)HefeiAnhui230027 China Shanghai Institute of Organic Chemistry(SIOC) Chinese Academy of Sciences(CAS)Shanghai200032 China Vacuum Interconnected Nanotech Workstation(Nano-X) SuzhouJiangsu215123 China

ZnO nanoparticles(nps)among metal oxide(MOs)are proven to be essential electron transporting layers(ETLs)applied in organic solar cells(OSCs).However,intrinsic defects,interfacial charge recombination,and catalytic behavior towards the active layer restrict the applications of ZnO nps for efficient and long-term stable *** commonly available biomolecule cytidine 5'-monophosphate(CMP-OH)with phosphonic acid,its salt cytidine 5'-monophosphate disodium salt(CMP-ONa)with a phosphate group as an anchoring group and conjugated terminal functional in both analogous molecules provide carrier transfer bridge at bottom interface of the active *** theoretical investigations and characterizations have discovered the multi-site coordination of CMP-OH towards acceptor molecules and ZnO *** dual-side alignment of CMP analogous molecules hinders interfacial charge recombination and enhances charge transfer potential at ***,PM6:L8-BO-based OSCs with modified ETL obtain 18.13%efficiency,12%higher than that of unmodified *** higher efficiency,CMP-OH-based OSC devices illustrate remarkably improved thermal stability for 500 h at 85℃with 72%of initial PCE and operation stability for 2000 h with 90.1%of initial *** work reveals the passivation mechanism of multi-anchoring groups towards MOs and single-functional groups towards the active layer to optimize the interface for efficient and highly stable OSCs.

关键词： Organic solar cells Nanoparticles Nucleotides Interfacial interactions Surface chemistry Multi-site passivation

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Performance analysis of a random ARQ initialized cooperative communication protocol in shadowed Nakagami-m wireless channel

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Science in China(Series F) 2009年第6期52卷 1027-1036页

作者： AHMED irfan PENG MuGen WANG WenBo SHAH Syed ismail Wireless Signal Processing and Network Laboratory Beijing University of Posts and Telecommunications Real-Time MIMO Test-Bed Laboratory Iqra University Islamabad Pakistan

In this paper, we develop and analyze an energy efficient ARQ （automatic repeat request） initialized transmit diversity protocol for cooperative *** access control （MAC） layer packet retransmission limit （similar to aShortRetryLimit or aLongRetryLimit [802.11-1997]） has been used as an actuator for transmit cooperative diversity *** take the channel state information （CSI） as a function of retransmission tries and the number of retransmission tries is modeled as a random *** close to the source node are chosen for the transmit *** form expressions are obtained for symbol error rate （SER）, outage capacity and outage probability for the proposed scheme in shadowed fading *** cooperative scheme achieves lower signal-to-noise ratio （SNR）, stumpy outage probability, higher bandwidth, and transmit energy efficiencies for desired average symbol error rate （ASER） than the preceding ARQ based cooperative ***, the results of computer simulations are included to demonstrate the efficacy of the proposed scheme and to verify the accuracy of the analytical expressions.

关键词： automatic repeat request (ARQ) cooperative transmit diversity composite shadowed fading channel wireless networks

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Impairments Approximations in Assembled mmWave and Radio Over Fiber Network

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Computers, Materials & Continua 2022年第12期73卷 4885-4895页

作者： Muhammad irfan Farman Ali Fazal Muhammad Saifur Rahman Ammar Armghan Yousaf Khan Faisal Althobiani Rehan Shafiq Mohammed Alshareef Mohammad E.Gommosani Electrical Engineering Department College of EngineeringNajran UniversityNajran61441Saudi Arabia Department of Electrical Engineering Qurtuba University of Science and ITDera Ismail Khan29050Pakistan Department of Electrical Engineering University of Engineering TechnologyMardan23200Pakistan Department of Electrical Engineering College of EngineeringJouf UniversitySakakaSaudi Arabia Faulty of Electrical Engineering University of Engineering and TechnologyPeshawarPakistan Faculty of Maritime Studies King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Electrical Engineering Sarhad University of Science and Information TechnologyPeshawar25220Khyber PukhtunkhwaPakistan Ports&Maritime Transportation Faculty of Maritime Studies King Abdulaziz University JeddahSaudi Arabia Nautical Science Department Faculty of Maritime StudiesKing Abdulaziz UniversityJeddahSaudi Arabia

The fiber nonlinearity and phase noise(PN)are the focused impairments in the optical communication system,induced by high-capacity transmission and high laser input *** channels include high-capacity transmissions that cannot be achieved at the end side without aliasing because of fiber nonlinearity and PN ***,addressing of these distortions is the basic objective for the 5G mobile *** this paper,the fiber nonlinearity and PN are investigated using the assembled methodology of millimeter-wave and radio over fiber(mmWave-RoF).The analytical model is designed in terms of outage probability for the proposed mmWave-RoF *** performance of mmWave-RoF against fiber nonlinearity and PN is studied for input power,output power and length using peak to average power ratio(PAPR)and bit error rate(BER)measuring *** simulation outcomes present that the impacts of fiber nonlinearity and PNcan be balanced for a huge capacity mmWave-RoF model applying input power carefully.

关键词： Fiber nonlinearity phase noise radio over fiber network advanced modulation system

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Iron Deficiency Anemia in School Age Children in District Karak Khyber Pakhtunkhwa Province, Pakistan

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Open Journal of Blood Diseases 2014年第2期4卷 9-15页

作者： irfan Ullah Muhammad Zahid Aftab Alam Sthanadar Iram Alam Sthanadar Pir Asmat Ali Mudassirshah Muhammad ismail Khan Muhammad Kaleem Muhammad Aslam Khayyam Atiq-Ur-Rehman Wasif Ullah Department of Zoology and Animal Sciences Post Graduate College Dargai Malakand Pakistan Department of Zoology Islamia College University Peshawar Pakistan Government Degree College Dara Adam Kheil FR Kohat Pakistan

The present study aimed to estimate the prevalence of iron deficiency anemia (IDA) in school-going children. Both Iron deficiency and iron deficiency anemia have considerable adverse effect on human health. Among the different negative health concerns, including stunt development, less developed immunity, lower IQ level, no proper physical work capacity, more fatigue, maternal mortality rates, young ones born with low birth weight, birth complications and infant mortality rates are some of the remarkable health concerns posed by iron deficiency level. Our study sample was consisting of 420 school age children of both genders. The blood samples were collected in EDTA (Ethylenediaminetetraacetic acid) tubes from different school and health maternity centres by trained and veteran persons. Questionnaires were utilised for the data collection, at the time of blood samples collection. Hemoglobin (Hb), hematocrite (Hct), Mean Corpuscular Volume (MCV), Mean Corpuscular hemoglobin concentration (MCHC), white blood cell and red blood cell (RBC) were determine by automatic hematological analyzer model Symex Ks-21 having two reagents, cell pack and Stromatolyser-wwt 500 ml. The total percentage of anemia recorded in school age children was 34.0%. In tehsil Banda Daud Shah, the incidence of anemia was high up to 43.6% while in tehsil Takhti Nasrati and Karak was 32.1% and 26.4% respectively. The percentage was higher in girls (38.9%) than in boys (31.0%). The anemia percentage was recorded high (55.8%) in lower socioeconomic family children, than middle class (32.2%) and upper class (17%). The percentage of anemic children was also high (40%) in age group of 10 - 12 years. Pale skin was the most common symptom of anemia.

关键词： Iron Deficiency Anemia (IDA) Red Blood Cells (RBC) Hemoglobin (Hb) Hematocrit (Hct) Ethylenediamine Tetraacetic Acid (EDTA)

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Comparison of two different treatment regimens’ efficacy in neovascular age-related macular degeneration in Turkish population—based on real life data-Bosphorus RWE Study Group

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International Journal of Ophthalmology(English edition) 2020年第1期13卷 104-111页

作者： Burak Erden Selim Bolükbasi Abdullah Ozkaya Levent Karabas Cengiz Alagoz Zeynep Alkin Ozgür Artunay Sadik Etka Bayramoglu Gokhan Demir Mehmet Demir Ali Demircan Gürkan Erdogan Mehmet Erdogan Erdem Eris Havva Kaldirim ismail Umut Onur Ozen Ayranci Osmanbasoglu Sezin Ozdogan Erkul Mine Oztürk irfan Perente Kübra Sarici Nihat Sayin Dilek Yasa Ihsan Yilmaz Zeynep Yilmazabdurrahmanoglu 无 Ophthalmology Clinic Okmeydani Training and Research Hospital Ophthalmology Clinic Memorial Sisli Hospital Department of Ophthalmology Kocaeli University Faculty of Medicine Ophthalmology Clinic Beyoglu Eye Training and Research Hospital Ophthalmology Clinic Kanuni Sultan Süleyman Training and Research Hospital Ophthalmology Clinic Sisli Etfal Training and Research Hospital Ophthalmology Clinic Bagcilar Training and Research Hospital Ophthalmology Clinic Bakirkoy Dr.Sadi Konuk Training and Research Hospital Ophthalmology Clinic Istanbul Training and Research Hospital1 Ophthalmology Clinic Haseki Training and Research Hospital Bosphorus Retina Study Group

AIM: To compare two different anti-vascular endothelial growth factor(anti-VEGF) treatment regimens'-a priori pro re nata(PRN) and PRN regimen following^(th)e loading phaseanatomical and functional results in neovascular agerelated macular degeneration(n AMD) patients. METHODS: Totally 544 n AMD patients followed and treated with aflibercept(n=135) and ranibizumab(n=409)at 9 different centers between 2013 and 2015 were enrolled into^(th)is retrospective multicenter study. Patients with initial best corrected visual acuity(BCVA) interval of 1.3-0.3(log MAR) and a minimum follow-up of 12 mo were included. Patients under two different regimens-a priori pro re nata(1+PRN) or 3 consecutive intravitreal injections followed by a PRN regimen(3+PRN)-were compared in BCVA at 3^(th), 6^(th) and 12^(th) months, and in central macular^(th)ickness(CMT) at 6^(th) and 12^(th) months. The total study group, intravitreal ranibizumab(IVR) and intravitreal aflibercept(IVA) groups were evaluated separately. RESULTS: The mean CMT decreased in^(th)e 1+PRN(n=101) regimen from 407 to 358 and 340 μm and in^(th)e 3+PRN(n=443) group from 398 to 318 and finally to 310 μm at months 6 and 12, respectively. Anatomically,^(th)e CMT reduction at 6^(th) month(48.5 vs 76.4;P<0.05) was statistically significant in favor of 3+PRN group. BCVA changed in 1+PRN group from 0.77 to 0.78, 0.75 and 0.75;in 3+PRN group from 0.81 to 0.69, 0.72, and 0.76 at months 3, 6, and 12, respectively. Visual gain was statistically better in 3+PRN group at 3^(th) month(-0.01 vs 0.12;P<0.001). In IVR group, CMT reduction was in greater in 3+PRN at 6^(th)(44 vs 72) and 12^(th) month(61 vs 84), but statistically insignificant. The 3+PRN group revealed statistically better visual results at 3^(th) month(-0.02 vs 0.11, P<0.05). In IVA group, although statistically insignificant, CMT reduction(61 vs 89, 6^(th) month;85 vs 97, 12^(th) month) and visual gain(0.02 vs 0.16;0.02 vs 0.14;0.05 vs 0.11) was found in favor of 3+PRN group

关键词： aflibercept neovascular age-related macular degeneration ranibizumab loading dose treatment regimen

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