Plasmon enhanced up-conversion nanoparticles in perovskite solar cells for effective utilization of near infrared light

Abstract

The power conversion efficiency of perovskite solar cells is enhanced by the combined effects of the utilization of NIR in UCNPs and surface plasmon resonance phenomena at the UCNP/top gold electrode interface.

Unintentional Hydrogen Incorporation into the SnO2 Electron Transport Layer by ALD and Its Effect on the Electronic Band Structure

“…In contrast, tin oxides characterized with the former property only (SnO 2 CBM is above perovskite’s CBM), such as PR O 2 80 and PR H 2 O 80, feature the highest PCE among the samples studied. Although SPR has been used for enhancing the performance of PSCs, − the degree of such improvement depends on the positioning of the plasmonic layer in the solar cell architecture. The strongest reduction of PCE occurs when the plasmonic layer is placed on the top of the ETL, coming in direct contact with the perovskite. , In contrast, if its placed on top of the perovskite or over the hole transport layer (HTL), the photovoltaic efficiency improves in comparison to the solar cell without any plasmonic layer .…”

“…Although SPR has been used for enhancing the performance of PSCs, − the degree of such improvement depends on the positioning of the plasmonic layer in the solar cell architecture. The strongest reduction of PCE occurs when the plasmonic layer is placed on the top of the ETL, coming in direct contact with the perovskite. , In contrast, if its placed on top of the perovskite or over the hole transport layer (HTL), the photovoltaic efficiency improves in comparison to the solar cell without any plasmonic layer . As CBM of both HTL and perovskite is located higher than that of the ETL, hot electrons from the plasmonic layer can easily move into the ETL under the action of the in-built electric field of the heterojunction.…”

Electrodeposition of Lithium-Based Upconversion Nanoparticle Thin Films for Efficient Perovskite Solar Cells

“…Their ability to upconvert one or more low-energy NIR photons to one high-energy visible photon, as well as their photostability and photoluminescence tunability, opens the door for advanced and promising applications [1][2][3][4][5]. These include bio-applications, quantum sensing, optoelectronics, superresolution microscopy, and renewable energy [6][7][8][9][10][11][12][13][14][15].…”

“…As the perovskite solar cells are considered to be the best alternative to the silicon-based solar cells, thin UC film technology applications in PSCs remains unexplored in detail. UCNP thin films are expected to enhance perovskite solar cells' (PSCs) power conversion efficiency due to their exceptional near-infrared light (NIR) responsivity [10][11][12][13]. In addition, the UCNP thin films in PSCs will work as a spectral converter to harvest the near-infrared (NIR) solar photons from sunlight and convert them to absorbable visible light photons by the perovskite light-harvesting active layer [10,11].…”

Lithium-Based Upconversion Nanoparticles for High Performance Perovskite Solar Cells

“…To enhance the photovoltaic performance of PSCs, efforts have been made to introduce additive light-harvesting materials to the perovskite to fully utilize the sunlight, and therefore, to improve power conversion efficiency [10,[22][23][24][25][26][27]. Lanthanide (rare-earth) ion-doped upconversion nanoparticles (UCNPs) have shown great potential as spectral converters to harvest near-infrared (NIR) solar photons from sunlight and convert them to absorbable visible light photons by the perovskite light-harvesting active layer [13,[28][29][30]. UCNPs have been incorporated into different layers of the PSCs to improve their photovoltaics performance and PCE.…”