A critical review on the efficiency improvement of upconversion assisted solar cells

Applications of upconversion nanoparticles in analytical and biomedical sciences: a review

“…Here, we illustrated the three core mechanisms of upconversion in Fig. 1: (a) ESA, (b) ETU, and (c) PA. 24–26…”

Efficient NIR-to-vis photon upconversion in binary rubrene films deposited by simplified thermal evaporation

“…Growing research interest in photon energy upconversion (UC) attainable in organic materials via triplet-triplet annihilation (TTA) is stimulated by promising applications in photocatalysis, 1-3 bioimaging, 4 photovoltaics, [5][6][7][8][9][10][11][12][13][14] targeted drug delivery, 15,16 etc. [17][18][19] The inherent ability of TTA-UC to be driven by incoherent irradiation and at low power densities (BmW cm À2 ) 5,7,20 implies great opportunities for solar energy harvesting, since poorly utilized near-infrared (NIR) photons in solar cells can be readily converted into the visible radiation and reused thereafter for photocurrent generation.…”

BaYb2 – xErxGe3O10 and BaY2 – 10yYb9yEryGe3O10: Luminescent Properties and Prospects for Applications in Remote Temperature Determination

“…To increase the efficiency of upconversion luminophores, sensitizing ions (for example, Yb 3+ ) that are capable of more efficiently absorbing the infrared radiation energy of commercial light-emitting diodes and transferring it to Er 3+ ions are additionally introduced into the lattice of compounds. The possibility of upconversion transformation of exciting radiation is widely used in solar cells and photovoltaic devices [9][10][11][12], in displays [5,6], as well as in microscopic studies of biological objects [13,14].…”