Jul 20, 2018 · We report a new method as UV treatment of low-temperature processed to obtain tin oxide (SnO2) electron transport layers (ETLs). The results show that the high quality of ETLs can be produced by controlling the thickness of the film while it is treated by UV. The thickness is dependent on the concentration of SnO2. Moreover, the conductivity and transmittance of the layer are dependent on the ...

Recently, low temperature solution-processed tin oxide (SnO2) as a versatile electron transport layer (ETL) for efficient and robust planar heterojunction (PH) perovskite solar cells (PSCs) has attracted particular attention due to its outstanding properties such as high optical transparency, high electron mobility, and suitable band alignment. However, for most of the reported works, an ...

Download scientific diagram | UV-vis absorption spectra of pure and doped SnO2 nanoparticles. UV-visible absorption spectra of the samples were shown in fig4. The absorption band at 370nm which ...

From UV-visible spectroscopy it is shown that transmittance of the SnO2 thin film decreases with increasing the annealing temperature. As the annealing temperature increases, band gap value ...

May 27, 2024 · Photodetectors (PDs) with broadband photoresponse can meet the demand for multiband detection in complex environments, overcoming the technological complexity issue of integrated narrow-band PDs. Self-powered heterojunction PDs having ultraviolet–visible–near-infrared broadband photoresponse were constructed by using SnO2 nanopillars and CuInS2 nanoflakes. The dimension, crystalline ...

Oct 1, 2024 · In this work, we present the growth of UV-transparent Ta-doped SnO 2 (TTO) thin films on GaN as a promising UV-transparent electrode for LEDs. TTO thin films with a thickness of 200 nm exhibit optical transmission exceeding 80% at the wavelength of 300 nm, with a low resistivity of 2.5 × 10 −4 Ω·cm and a low contact resistance of 1.7 × 10 ...

The UV light-activated sensor fabricated from Au/SnO2 nanorods was found to exhibit excellent sensing properties for NO2 at room temperature, including a high response of 10 (at a concentration of 1 ppm), a theoretical detection limit of 21 ppt, and a fast response/recovery time of 1/5 s (${T}_{{60}}$ ) and 22/38 s (${T}_{{90}}$ ). In addition ...

Jan 1, 2013 · UV–Vis absorption and photoluminescence spectrum are very useful technique to understand the role played by defects in the optical property of SnO 2 nanoparticles. The main defects observed in SnO 2 are oxygen vacancies. The structural characterization of the prepared nanomaterials is done using X-ray diffractometer and transmission electron ...

Mar 20, 2024 · The process involves synthesizing highly crystalline SnO2 nanocrystals stabilized with organic ligands, spin-coating their dispersion, followed by UV irradiation. The energy level of SnO2 is ...

Jul 12, 2013 · P is the power of the UV light (0.03 mW cm −2), S is the irradiated area (30 μm 2) and ΔI is the difference between the current with UV irradiation (I light) and the dark current (I dark) under the conditions of V scan =− 10 V, V dd = 1 V, and V data =− 40 V. h is Planck constant, c is velocity of light, e is the electronic charge and ...