Efficient near-infrared quantum cutting in Ce3+–Yb3+ codoped glass for solar photovoltaic

Experimental insights on the electron transfer and energy transfer processes between Ce3+-Yb3+ and Ce3+-Tb3+ in borate glass

“…[5][6][7] In this regard, the ongoing claims of observing an efficient quantum cutting especially in the case of Ce 3þ /Eu 2þ -Yb 3þ codoped materials raises serious concerns and confusion. [8][9][10][11] Recent studies on Ce 3þ (donor)-Yb 3þ (acceptor) and other similar redox ions codoped materials have demonstrated that the donor de-excitation and donor to acceptor energy sensitization involves an electron transfer process and not the cooperative energy transfer process as was considered earlier. [12][13][14][15] Electron transfer and energy transfer interactions are well established processes responsible for several physical phenomena such as the energy storage, scintillation, afterglow, quenching, and sensitization.…”

Structural, optical and electrical properties of Nd-doped SnO2 thin films fabricated by reactive magnetron sputtering for solar cell devices

“…The concept is that the incident photons from the solar spectrum can be converted to photons that match better the absorption wavelength range of the solar cell. For instance, by placing DC or DS layers in front of the solar cell, higher energy UV photons that cause thermalization losses can be converted into visible or near infrared lower energy photons, which can be absorbed by the cell [6][7][8]. Down conversion process is when more than one photon is produced from one high energy photon.…”

High-efficient near-infrared quantum cutting based on broadband absorption in Eu2+–Yb3+ co-doped glass for photovoltaic applications

“…ion might be an ideal broadband sensitizer for Yb 3? , as its 4f-5d transition covers a broad spectral range, and more importantly, the energy of its 4f-5d transitions can be tuned by changing the crystal field strength as well as the covalency of the host [18][19][20][21]24].…”