High‐efficiency Silicon Solar Cells: A Review

Abstract

Toward a Smart Optical Biosensor Based on Nanoporous Anodic Alumina (NAA): By modifying the pore geometry in nanoporous anodic alumina we are able to change the effective medium at will and tune the photoluminescence of NAA. The oscillations in the PL spectrum are converted into exclusive barcodes, which are useful for developing optical biomedical sensors in the UV‐Visible region.

Application of Ion Implantation for Intermediate Energy Levels Formation in the Silicon-Based Structures Dedicated for Photovoltaic Purposes

“…3 the conductance signal versus the temperature was plotted for several testing frequencies and the value of T a = 673 K. As it can be seen, position of the peak-point of each recorded signal is distinctive for a certain value of f and it shifts with the increasing temperature. This allows estimating the value of ω and subsequently the value of e t (T m ) according to formula (1). On the other hand, it is known [20] that the thermal emission rate of a deep level could be expressed by…”

“…The technological progress made in the field of crystalline silicon photovoltaic (PV) cells over the last few years resulted in a number of innovative concepts, which were analyzed in a number of scientific reports [1][2][3]. The vast majority of described solutions were focused on increasing the actual solar cells efficiency by means of reducing optical, electrical and quantum loss factors in order to minimize their detrimental effects on the photoconversion process.…”

Analysis of the Influence of Annealing Temperature on Mechanisms of Charge Carrier Transfer in GaAs in the Aspect of Possible Applications in Photovoltaics

“…However, considering the current state of the art, improving performance of GaAs cells requires a multithreaded approach that concentrates on reducing many different loss factors which affect final efficiency of the cell. Among them, it is possible to distinguish electrical, optical, and quantum losses, as it was reported in [3,4]. In particular, the quantum loss factor is strictly connected with the internal structure of the cell substrate.…”

“…Considering the above, and taking into account the results of investigations concerning of silicon, implanted with Ne + ions presented in [12] in combination with the methods for reduction of photoconversion losses (299) described in [3], it can be argued that by using polyenergetic hydrogen ion implantation to modify the electrical properties of GaAs and using the above-mentioned mechanism of jump conductivity, it is possible to generate and identify additional intermediate energy levels in the band gap and consequently improve the photoconversion efficiency of the modified GaAs, as a base material for photovoltaic cells. In this article, the thesis is shown in an experimental way.…”

Comparative Analysis of the Photovoltaic Cells Efficiency Depending on the Substrate Material Processing Technology

“…As it is commonly known, the efficiency of solar energy conversion in crystalline silicon (c-Si) photovoltaic (PV) cells is significantly affected by the series of internal and external factors. Considering internal structure of single PV cell, initial photoelectric effect is finally deteriorated by optical, electrical and quantum losses [1]. Current technical solutions that are applied in order to minimize negative consequences of these losses result in designing new generations of solar cells, which seem to be advanced, multi-layer electronic devices rather than simple p-n junctions.…”