Exceeding the Schockley Queisser Limit via Tandem Solar Cells and Spectrum Rehaping

Date

2018-07-06

Author

Yerci, Selçuk

Metadata

Show full item record

Item Usage Stats

53
views

0
downloads

URI

https://hdl.handle.net/11511/74108

Collections

Unverified, Conference / Seminar

Suggestions

OpenMETU
Core

Achieving the Age-Energy Tradeoff with a Finite-Battery Energy Harvesting Source Bacınoğlu, Baran Tan; Sun, Yin; Uysal, Elif; Mutlu, Volkan (2018-06-22) We study the problem of minimizing the time-average expected Age of Information for status updates sent by an energy-harvesting source with a finite-capacity battery. In prior literature, optimal policies were observed to have a threshold structure under Poisson energy arrivals, for the special case of a unit-capacity battery. In this paper, we generalize this result to any (integer) battery capacity, and explicitly characterize the threshold structure. We provide the expressions relating the threshold valu...
Achieving Nearly 100% Throughput without Feedback in Energy Harvesting Wireless Networks Gül, Ömer Melih; Uysal, Elif (2014-07-04) A single-hop network where a fusion center (FC) collects data from a set of energy harvesting nodes is considered. If a node that is scheduled has data and sufficient energy, it makes a successful transmission. Otherwise, the channel allocated to the node remains idle. The goal is to make efficient use of channel resources in order to either (1) use all the energy that is harvested by nodes, or (2) stabilize all data buffers. In the absence of feedback from nodes about hullers or battery states, or prior kn...
Enhancing the image resolution in a single-pixel sub-THz imaging system based on compressed sensing ALKUS, Umit; ERMEYDAN, Esra Sengun; Şahin, ASAF BEHZAT; CANKAYA, Ilyas; Altan, Hakan (SPIE-Intl Soc Optical Eng, 2018-04-01) Compressed sensing (CS) techniques allow for faster imaging when combined with scan architectures, which typically suffer from speed. This technique when implemented with a subterahertz (sub-THz) single detector scan imaging system provides images whose resolution is only limited by the pixel size of the pattern used to scan the image plane. To overcome this limitation, the image of the target can be oversampled; however, this results in slower imaging rates especially if this is done in two-dimensional acr...
Boosting the efficiency of organic solar cells via plasmonic gold nanoparticles and thiol functionalized conjugated polymer Karakurt, Oğuzhan; Alemdar, Eda; Erer, Mert Can; Cevher, Duygu; Gulmez, Selin; Taylan, Umut; Cevher, Sevki Can; Ozsoy, Gonul Hizalan; Ortac, Bulend; Çırpan, Ali (2022-12-01) © 2022 Elsevier LtdConjugated polymers are promising low-cost, lightweight, and flexible candidates for scalable photovoltaic applications to establish decarbonized energy technologies. However, they possess deficiencies in terms of their lower charge mobility and exciton diffusion length compared to their inorganic counterparts, impeding the efficient charge extraction at high active layer thickness values. In this manner, active layer composition should be tuned to improve light harvesting enabling effici...
Increasing the Lifetime of Flash Memories Using Multi-Dimensional Graph-Based Codes Hareedy, Ahmed; Kuditipudi, Rohith; Calderbank, Robert (2019-08-01) © 2019 IEEE.In order to meet the demands of data-hungry applications, data storage devices are required to be increasingly denser. Various sources of error appear with this increase in density. Multi-dimensional (MD) graph-based codes are capable of mitigating error sources like interference and channel non-uniformity in dense storage devices. Recently, a technique was proposed to enhance the performance of MD spatially-coupled codes that are based on circulants. The technique carefully relocates circulants...

Citation Formats

S. Yerci, “Exceeding the Schockley Queisser Limit via Tandem Solar Cells and Spectrum Rehaping,” 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/74108.