Essays about: "CT states"

Showing result 1 - 5 of 7 essays containing the words CT states.

1. 1. Charge transfer states at polymer solar cell interfaces : Insights from atomic-scale modeling

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

   Author : Rickard Svensson; [2022]
   Keywords : organic solar cells; OSC; polymer; interface; charge transfer; non-fullerene acceptor; PYT; PBDB-T; DFT; TD-DFT; conformation; alkyl groups; methylation; HOMO; LUMO; FMO; NTO; UV-Vis; DOS; exciton; exciton binding energy; dipole moment; open-circuit voltage; organiska solceller; OSC; polymer; gränssnitt; laddningsöverföring; icke-fullerenacceptor; PYT; PBDB-T; DFT; TD-DFT; konformation; alkylgrupper; metylering; HOMO; LUMO; FMO; NTO; UV-Vis; DOS; exciton; excitonbindningsenergi; dipolmoment; tomgångsspänning;

   Abstract : Organic solar cells (OSCs) based on non-fullerene acceptors (NFAs) have attracted a great deal of attention in recent years due to their rapidly increasing efficiency and enormous potential. In this work, the optical and electronic properties of systems containing the very promising non-fullerene acceptor PYT have been thoroughly studied with the use of the density functional theory (DFT) and the time-dependent density functional theory (TDDFT). READ MORE

3. 2. FE Modelling Of Two Femur Fixation Implants

   University essay from Linköpings universitet/Mekanik och hållfasthetslära

   Author : Ali Arsiwala; Vatsal Shukla; [2021]
   Keywords : FEM; Femur; Image Segmentation; Material Modelling; Recon Implant; Antegrade Implant; Atypical Femoral Fracture; Intermedullary Nail;

   Abstract : In the pool of women over the age of 50, the likeliness of an atypical fracture increase drastically, partly due to osteoporosis. With a pre-existing implant in the femur bone, inserted due to a prior atypical fracture, treating a later femoral neck fracture is complex and risky. READ MORE

4. 3. Gynnas talgoxens häckningsframgång av gallring i barrskogen? : en experimentell studie om anpassad skogsgallring

   University essay from SLU/Dept. of Ecology

   Author : Angelia Ellvin; [2020]
   Keywords : talgoxe; häckningsframgång; boreal skog; gallring; undervegetation;

   Abstract : Skogsbruket orsakar strukturella förändringar som hotar biologisk mångfald världen över, men industrin är samtidigt nödvändig för samhället. Speciellt undervegetationen försvinner ofta vid låggallring (CT), som är den dominerande gallringsmetoden i bl.a. Skandinavien, Baltikum och Ryssland. READ MORE

5. 4. Stacked Dual Narrowband Organic Near-Infrared Photodetectors

   University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

   Author : Yazhong Wang; [2017]
   Keywords : Near-infrared; photodetectors; CT states; Fabry-Perot resonant cavity; resonant cavity enhancement; tunability; full width at half maximum;

   Abstract : Compared with the detector devices made of inorganic semiconductors, organic photodetectors are granted with additional strengths, such as flexibility, high scalability and bio-compatibility. However, in the family of organic optoelectronic devices, the detectors that are capable of detecting photons at two or multiple specific wavelengths are still missing. READ MORE

6. 5. Time-resolved study of charge photo-generation in polymer-based solar cells with low driving force

   University essay from Lunds universitet/Fysiska institutionen

   Author : Paulius Baronas; [2014]
   Keywords : Organic polymer solar cells; BHJ solar cells; Charge photo-generation; Driving force; Time resolved photoluminescence; CT states; Physics and Astronomy;

   Abstract : Organic polymer-based solar cells recently attracted much attention as an efficient and inexpensive light-to-electricity conversion solution. However, the mechanism behind charge generation processes in organic materials is still not fully understood due to complex nature of carbon-based compounds. READ MORE