Hydrogenated Amorphous Silicon Sensor Deposited on Integrated Circuit for Radiation Detection

Despeisse, M.; Anelli, G.; Jarron, P.; Kapłon, J.; Moraes, D.; Nardulli, A.; Powolny, F.; Wyrsch, Nicolas

doi:10.1109/tns.2008.918519

Cited by 20 publications

(42 citation statements)

References 18 publications

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“…Here, the crack, followed by a dashed line and appearing as white contrast line, propagates through the whole active part of the i-layer. It is worth stressing that these "cracks" have been observed by different other groups, for different other TCOs or substrates, in µC-Si:H and in aSi:H solar cells [26,27] or particle detectors [28], and that they are determined by the substrate morphology and geometry. Reduction of this low quality material density is therefore crucial for the development of high efficiency thin film silicon solar cells.…”

Section: Impact Of the Substrate Geometry Onto Thin Film Silicon Solamentioning

confidence: 89%

Research and developments in thin-film silicon photovoltaics

et al. 2009

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The increasing demand for photovoltaic devices and the associated crystalline silicon feedstock demand scenario have led in the past years to the fast growth of the thin film silicon industry. The high potential for cost reduction and the suitability for building integration have initiated both industrial and research laboratories dynamisms for amorphous silicon and micro-crystalline silicon based photovoltaic technologies. The recent progress towards higher efficiencies thin film silicon solar cells obtained at the IMT-EPFL in Neuchatel in small-area laboratory and semi-large-area industrial Plasma Enhanced Chemical Vapor Deposition (PE-CVD) systems are reviewed. Advanced light trapping schemes are fundamental to reach high conversion efficiency and the potential of advanced Transparent Conductive Oxides (TCO) is presented, together with issues associated to the impact of the substrate morphology onto the growth of the silicon films. The recent improvements realized in amorphous-microcrystalline tandem solar cells on glass substrate are then presented, and the latest results on 1 cm 2 cells are reported with up to 13.3 % initial efficiency for small-area reactors and up to 12.3 % initial for large-area industrial reactors. Finally, the different strategies to reach an improved light confinement in a thin film solar cell deposited on a flexible substrate are discussed, with the incorporation of asymmetric intermediate reflectors. Results of micromorph solar cells in the n-i-p configuration with up to 9.8 % stabilized efficiency are reported.

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Section: Impact Of the Substrate Geometry Onto Thin Film Silicon Solamentioning

confidence: 89%

Research and developments in thin-film silicon photovoltaics

et al. 2009

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“…Diodes with an ionized defect density as low as 7×10 14 cm -3 have been obtained [54,56]. However, similar defect densities have also been obtained with hydrogen dilution (and without He) [57]. As an alternative way to reduce the voltage needed for full depletion, Morosanu et al proposed to slightly p-type dope the intrinsic layer.…”

Section: Io Figure 4: Minimum Voltage Necessary To Fully Deplete An Amentioning

confidence: 96%

Review of amorphous silicon based particle detectors: the quest for single particle detection

Wyrsch

Ballif

2016

Semicond. Sci. Technol.

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Abstract. Hydrogenated amorphous silicon (a-Si:H) is attractive for radiation detectors because of its radiation resistance and processability over large areas and with mature Si microfabrication techniques. While the use of a-Si:H for medical imaging has been very successful, the development of detectors for particle tracking and minimum-ionizing-particle detection has lagged, with almost no practical implementation. This paper reviews the development of various types of a-Si:H-based detectors and discusses their respective achievements and limitations. It also presents more recent developments of detectors that could potentially achieve single particle detection and be integrated in a monolithic fashion into a variety of applications.

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“…2 were already performed using beta particles [8]. It was demonstrated that almost no cross-tall takes place for microstrips only 4 µm apart and that the lateral collection of the charges generated by the ionizing particles is very short.…”

Section: Tfa Sensors -Microstrip Characterizationmentioning

confidence: 99%

“…Using microstrip pixel geometries, very high spatial resolution can be obtained that are comparable or superior to the ones of stateof-the-art c-Si detectors. A specific test chip was designed in the past by CERN to study the effect of pixel geometry on the performance of TFA sensors [8]. This chip includes pixels of various sizes and shapes, microstrips of various width and pitch values and two different geometries for the openings in the passivation layer of the chip (see Fig.…”

Section: Introductionmentioning

confidence: 99%

Amorphous Silicon Based Particle Detectors

et al. 2011

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Radiation hard monolithic particle sensors can be fabricated by a vertical integration of amorphous silicon particle sensors on top of CMOS readout chip. Two types of such particle sensors are presented here using either thick diodes or microchannel plates. The first type based on amorphous silicon diodes exhibits high spatial resolution due to the short lateral carrier collection. Combination of an amorphous silicon thick diode with microstrip detector geometries permits to achieve micrometer spatial resolution beneficial for high accuracy beam positioning. Microchannel plates based on amorphous silicon were successfully fabricated and multiplication of electrons was observed. This material may solve some of the problems related to conventional microchannel devices. Issues, potential and limits of these detectors are presented and discussed.

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Hydrogenated Amorphous Silicon Sensor Deposited on Integrated Circuit for Radiation Detection

Cited by 20 publications

References 18 publications

Research and developments in thin-film silicon photovoltaics

Research and developments in thin-film silicon photovoltaics

Review of amorphous silicon based particle detectors: the quest for single particle detection

Amorphous Silicon Based Particle Detectors

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