A review on spectral converting nanomaterials as a photoanode layer in dye‐sensitized solar cells with implementation in energy storage devices

Abstract

The present review article aims at the application of rare-earth-based titanium dioxide nanocrystals as spectral converters in photovoltaic devices, with special focus on dye-sensitized solar cells (DSSCs). Additionally, the implementation of DSSCs in energy storage, more importantly, DSSCs and lithium-ion batteries (LIB) integrated devices are systematically described. The absorption in DSSCs is mainly confined to the visible solar spectrum, which is one of the main reasons behind its limited power conversion efficiency. This has led to shifting of research focus on broadening the light absorption range of DSSCs, which can further lead to enhancement in overall power conversion efficiency. TiO 2 , doped with rare-earth (RE) ions, is often used as an electron transport layer (ETL) in DSSCs to overcome this absorption-related issue. This article gives a detailed review of TiO 2 doped with different RE ions, as an electron transport layer in DSSCs. More importantly, we have summarized all the recent important findings with the application of DSSCs in LIB and photocapacitors. K E Y W O R D S DSSCs, efficiency, electron transport layer, energy storage, photovoltaics, rare-earth 1 | OBJECTIVES • The main objective of this review article is to provide an overview of TiO 2 -based photoanode layer used in dye-sensitized solar cells (DSSCs).

Halide Perovskite Materials for Energy Storage Applications

“…In a way similar to the fabrication of a dye‐sensitized solar cell, organic and organometallic dyes are self‐assembled on the TiO 2 electrode to construct a photobattery. [ 98 ] The N719 dye is suggested to facilitate the delithiation of lithium iron phosphate nanocrystals in a photocathode under light irradiation. [ 99 ] The generation of holes that helps the delithiation at the cathode is accompanied with the formation of a solid electrolyte interface at the anode via the oxygen reduction.…”

Investigating the structure–function relationship in triple cation perovskite nanocrystals for light-emitting diode applications

“…Nanocrystals provide several advantages for optoelectronic applications as compared to bulk materials. [1][2][3][4] They have higher photoluminescence quantum yields (PLQY), narrower emission bandwidth, higher stability, size tuneable optical properties, and the capability for surface functionalisation. 3,[5][6][7][8][9][10][11] Nanocrystal or quantum dot based light emitting diodes (QLEDs) are amongst the best performing LEDs, owing to impressive color rendering, high brightness and higher thermal stability.…”

Preparation and study of the Structural, Morphological and Optical properties of pure Tin Oxide Nanoparticle doped with Cu

“…Strongly thermally stable in the air up to 500°C 9 , Tin has two types of oxides; stannous oxide (SnOromarchite) and stannic oxide (SnO 2 cassiterite) 10 . Tin oxide (SnO 2 ) is one of the (n-type) metallic semiconductors that has a wide gap (3.6ev) in room temperature, and its excellent properties make it a suitable material for many applications, in transparent electrodes, solar cells, gas-sensing photocatalysts, photoelectric devices 11,12 One of the influences that affect the performance of the sensors is the increase in the surface area , as attention has been paid to preparing crystalline materials with a large surface area where the properties of crystalline materials are very sensitive on the surface of atomic structures, especially applications such as solar cells and gas sensors [13][14][15] . Oxide nanoparticles can be prepared by both Physical and Chemical methods.…”