Essays about: "organic solar"

Showing result 16 - 20 of 81 essays containing the words organic solar.

1. 16. A photodegradation study of conjugated polymers for organic solar cells by absorption spectroscopy and atomic force microscopy

   University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Author : Johansson André; [2021]
   Keywords : OSC; solar cells; active layer; polymer; degradation;

   Abstract : The effect of light exposure in ambient air on thin films made from an electron acceptor polymer poly{[N,N'-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (N2200), an electron donor polymer Poly[[2,3-bis(3-octyloxyphenyl)-5,8-quinoxalinediyl]-2,5-thiophenediyl] (TQ1) and their blends, has been studied using UV-vis spectroscopy and Atomic Force Microscopy (AFM). For solutions of TQ1, N2200 and blends, the linearity of the Beer-Lambert law for absorption spectroscopy has been verified. READ MORE

3. 17. Synthesis and Characterization of Copper Halide Complex Materials

   University essay from KTH/Tillämpad fysikalisk kemi

   Author : Hiroki Tomita; [2021]
   Keywords : Copper halide complexes; Coordination polymers; Photoluminescence; Bidentate ligands; Applications of thin films; Kopparhalogenidkomplex; koordinationspolymerer; fotoluminiscens; bidentata ligander; tillämpningar av tunna skikt;

   Abstract : Energiförbrukning är ett hett ämne i världen idag, eftersom världens befolkning fortsätter att växa. Som ett resultat ökar också den globala energiförbrukningen snabbt och utsläppen av koldioxid därmed, vilket påverkar global uppvärmning och klimatförändringar. READ MORE

4. 18. Photochemistry of Copper Coordination Complexes

   University essay from KTH/Kemiteknik

   Author : Amanda Blad; Helena Glisén; Filippa Ludvig; [2021]
   Keywords : Copper Halide Organic Complex; Time-Resolved Photoluminescence; Metal-organic Framework; Coordination Polymer; Thin Film Solar Cell; Koppar halid organiska komplex; tidsberoende fotoluminesens; metallorganiska ramverk; koordinationspolymer; tunnfilmssolcell.;

   Abstract : The United Nations have set a number of sustainability goals, Agenda 2030, in order to combat the worlds largest challenges and injustices. The energy market is one of these urgent issues which must be solved. Solar energy is expected to be the fastest growing energy source in the future energy mix. READ MORE

5. 19. Estimating active layer thickness at the high Arctic study site Zackenberg from remotely sensed ground subsidence

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Lotte Wendt; [2021]
   Keywords : active layer thickness; DInSAR; subsidence; permafrost; Zackenberg; CALM; Earth and Environmental Sciences;

   Abstract : The active layer thickness (ALT) is an indicator of permafrost thaw, which potentially leads to the release of large amounts of greenhouse gases under global warming, and thus could further amplify climate change. The thaw depth of the active layer also governs seasonal surface deformation, caused by the volume change between ice to water, which poses risks for slope stability and infrastructure foundations. READ MORE

6. 20. NDVI time series analysis for desert locust outbreak detection and quantification analysis of its impact on vegetation productivity of Sahel

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Evangelos Oikonomopoulos; [2020]
   Keywords : Physical Geography and Ecosystem Analysis; Primary Productivity; Desert Locust; NDVI; Time Series Analysis; Outbreak Detection; Food Security; Sahel; Insect Disturbances; GEM; Earth and Environmental Sciences;

   Abstract : It has been shown that the semi-arid environment of the Sahelian belt plays an important role in the global carbon uptake as the fluctuation of its primary productivity can be determinant for the global carbon uptake. The insect Schistocerca gregaria commonly known as the desert locust is a disturbance factor that can affect the vegetation productivity for consecutive seasons. READ MORE