Title :
Enhanced exciton transfer from the cascaded bilayer of green- and red-emitting CdTe quantum dots into bulk silicon
Author :
Yeltik, Aydan ; Guzelturk, Burak ; Demir, Hilmi Volkan
Author_Institution :
Dept. of Phys., Nanotechnol. Bilkent Univ., Ankara, Turkey
Abstract :
We show enhanced transfer of excitons from the energy-gradient of bilayered green/red-emitting quantum dots into silicon using cascaded nonradiative energy with an overall enhancement factor of 1.3 at room temperature for solar cell sensitization.
Keywords :
II-VI semiconductors; cadmium compounds; excitons; photoluminescence; semiconductor quantum dots; CdTe-Si; Si; bilayered green-emitting quantum dots; bilayered red-emitting quantum dots; bulk silicon; cascaded bilayer; cascaded nonradiative energy; energy gradient; exciton transfer; solar cell sensitization; temperature 293 K to 298 K; Absorption; Educational institutions; Energy exchange; Excitons; Green products; Silicon; Substrates;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
