Abstract Indoor organic photovoltaics (OPVs) are currently being investigated for small-scale energy generation from artificial light sources to power small electronic devices. Despite recent progress in increasing the conversion efficiency (PCE) of indoor OPVs, widespread use expensive indium tin oxide (ITO) as a transparent conducting electrode (TCE) leads long payback times. This study provi...

The effect of nanoparticle structure on gas sensing performance is investigated. Size-selected nanostructured SnO2 agglomerate particles for gas sensors were made by scalable flame spray pyrolysis. These particles were polydisperse up to 12 m in diameter and consisted of primary particles of 10 nm in grain and crystal size as measured by transmission electron microscopy, x-ray diffraction, and ...

The electronic characteristics, including the density of state and bond length, in addition to spectroscopic properties such as IR spectrum Raman scattering, a function frequency Sn10O16, C24O6, hybrid junction (Sn10O16/C24O6) were studied. methodology uses DFT for all electron levels with B3-LYP (Becke level, 3-parameters, Lee–Yang-Parr), 6-311G (p,d) basis set, Stuttgart/Dresden (SDD) using G...

This paper presents a gas identification circuit for tin oxide (SnO2) gas sensors. The proposed circuit uses 2 gas sensors with different characteristics to achieve gas identification. A spike train is generated during operation, with the frequency of spike occurrence being gas dependent but concentration invariant. As a result, the spike firing frequency can be used to achieve gas identificati...

Electrochemical impedance spectroscopy was used to determine the effective charge transfer resistances of porous dye-sensitized solar cell counter electrodes prepared by low-temperature spray deposition and compression of conductive carbon and platinized Sb-doped SnO2 powders on indium tin oxide-coated plastic substrates. The charge transfer resistances were 0.5–2 and 8–13O cm, respectively, wh...

The atomic layer deposition sALDd of tin oxide thin films has been examined using in situ quartz crystal microbalance sQCMd and Fourier transform infrared sFTIRd techniques. The SnOx films were deposited using sequential exposures of SnCl4 and H2O2 at temperatures from 150 to 430 °C. The linear growth of the tin oxide ALD films was observed by both the mass gain during QCM measurements and the ...

Tin oxide (SnO2) as an electron transport material was prepared by atomic layer deposition in dye-sensitized NiO films to fabricate solid-state p-type solar cells using two organic dyes PB6 and TIP photosensitizers. Due the excellent mobility satisfactory penetration of SnO2 into film, a record photocurrent density over 1 mA cm–2 achieved with power conversion efficiency 0.14%. The effect inser...

We have realized a p-type-like conduction in initially n-type SnO2 nanowires grown using a vapor-liquid-solid method. The transition was achieved by irradiating n-type SnO2 nanowires with a high-energy electron beam, without intentional chemical doping. The nanowires were irradiated at doses of 50 and 150 kGy, and were then used to fabricate NO2 gas sensors, which exhibited n-type and p-type co...

Article history: Received 25 May 2015 Received in revised form 20 June 2015 Accepted 21 June 2015 Available online xxxx Thin-film siliconmodules are commonly produced by an alternating sequence of layer deposition and layer patterning steps, which lead to amonolithic series connected device. Most used process is laser scribing process that offers a high throughput and a small area loss. Tin oxi...

Tin oxide thin films were successfully fabricated by the sol-gel spin coating technique for varying number of cycles. The samples were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The effect of a number of cycles on the structural and optical properties of SnO2 films was studied. The crystallite size is changed from 7.7 to 31.1 nm by increasing the number of ...