Organic D-A-π-A Solar Cell Sensitizers with Improved Stability and Spectral Response

2010 ◽  
Vol 21 (4) ◽  
pp. 756-763 ◽  
Author(s):  
Weihong Zhu ◽  
Yongzhen Wu ◽  
Shutao Wang ◽  
Wenqin Li ◽  
Xin Li ◽  
...  
Keyword(s):  
Solar Cell ◽  
Spectral Response ◽  
Improved Stability

CdSe/CdS Quantum Dot Core-Shell for Silicon Solar Cell Efficiency Enhancement

2020 ◽  
Vol 29 ◽  
pp. 8-14
Author(s):  
Manal Midhat Abdullah ◽  
Omar Adnan Ibrahim
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
Energy Gap ◽  
Spectral Response ◽  
Solar Spectrum ◽  
Core Shell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Electron Hole Pair ◽  
Pair Generation

Core-shell nanocrystals are utilized to improve vitality conversion efficiency of Si based solar cells. In the present work, a study of synthesis and characterization of photo luminescent, down-shifting, core-shell CdSe/CdS quantum dots is introduced. The QD,s absorb in the UV range (350nm) of the solar spectrum and emit photons with wavelengths centered at (574 nm). Calculated energy gap is (2.16 eV), which is well suited for Silicon absorption and electron-hole pair generation. The grain size is ranged between (1.814 and 3.456 nm). Results show that the cell efficiency is improved from (8.81%) (For a reference silicon solar cell) to (10.07%) (For a CdSe/CdS QD deposited directly on the surface of the solar cell). This improvement is referred to the spreading of the absorbed solar radiation over the spectral response of the Si solar cell.

Novel Design Strategies for Perovskite Materials with Improved Stability and Suitable Band Gaps

2021 ◽  
Author(s):  
Bing Zhang ◽  
Xiaogang Wang ◽  
Yang Yang ◽  
Lei Tong ◽  
Bin Hu ◽  
...  
Keyword(s):  
Solar Cell ◽  
Band Gaps ◽  
Current Work ◽  
Design Strategies ◽  
Perovskite Materials ◽  
Improved Stability ◽  
Halide Perovskites ◽  
Novel Design

The instability of organometallic halide perovskites is deemed a key hindrance hampering their commercial utilization in solar cell research. In the current work, we investigate and compare the dynamics properties...

scholarly journals Improvement of CdS?CuxS Solar Cell Performance by CdS Etching under Illumination

1992 ◽  
Vol 45 (1) ◽  
pp. 99 ◽  
Author(s):  
AM Al-Dhafiri
Keyword(s):  
Solar Cell ◽  
Single Crystals ◽  
Spectral Response ◽  
Cell Performance ◽  
Optical Characteristics ◽  
Solar Cell Performance ◽  
Junction Capacitance ◽  
Capacitance Measurements ◽  
Mixture Phase ◽  
Etched Surface

The influence of dark and light etching of CdS single crystals on the electrical and optical characteristics of the CdS-Cu",S heterojunction is investigated. It is shown through currentvoltage characteristics, spectral response and junction capacitance measurements that the junction of these cells is strongly affected by the presence of light during the etching process. It is found that when the CuS is formed on an etched CdS surface under light a chalcocite phase (CU2S) is obtained. In contrast, when the CuS layer is grown on a dark etched surface a mixture phase of chalcocite and djurleite (CUI� 96S) is found.

Novel NIR LaGaO3:Cr3+,Ln3+ (Ln = Yb, Nd, Er) phosphors via energy transfer for C–Si-based solar cells

2019 ◽  
Vol 48 (30) ◽  
pp. 11460-11468 ◽  
Author(s):  
Liang Zhang ◽  
Langping Dong ◽  
Baiqi Shao ◽  
Shuang Zhao ◽  
Hongpeng You
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Solar Cell ◽  
Potential Application ◽  
Spectral Response ◽  
Broadband Absorption ◽  
Si Solar Cell ◽  
Nir Emission

Novel NIR phosphors possess broadband absorption in the UV–Vis region and strong NIR emission, matching well with the spectral response of the C–Si solar cell and having a potential application in the C–Si solar cell.

Use of Silicone Oil and Coconut Oil as Liquid Spectrum Filters for BSPVT: With Emphasis on Degradation of Liquids by Sunlight

2017 ◽  
Vol 140 (1) ◽  
Author(s):  
Sandeep S. Joshi ◽  
Ashwinkumar S. Dhoble
Keyword(s):  
Solar Cell ◽  
Silicone Oil ◽  
Spectral Response ◽  
Coconut Oil ◽  
Aging Effect ◽  
Photovoltaic System ◽  
Electrical Performance ◽  
Thermal System ◽  
Solar Photovoltaic ◽  
Photovoltaic Thermal System

The solar photovoltaic thermal system (PVT) facilitates conversion of incoming solar radiations into heat and electricity simultaneously. The beam split photovoltaic thermal system (BSPVT) is one of the PVT systems. In this system, the incoming solar beam is splitted and used separately for PV and thermal system. The feasibility of water, silicone oil, and coconut oil as spectrum filter for C–Si solar photovoltaic system is reported in the literature recently. However, the changes in the optical behavior of the liquids due to extended exposure to sunlight (aging effect) had not been considered in most of the previous studies. The current study includes the methodology for the selection of liquids for BSPVT systems, estimation of external quantum efficiency (EQE) of a solar cell using liquids, and the aging effect on the liquid spectrum filters. The spectral response of the solar cell is analyzed using BENTHAM, (PVE 300) for 300–1100 nm. In this study, it has been observed that the aging of silicone oil reduces the electrical performance of the solar cell. On the other hand, the aged coconut oil improves the electrical performance of the solar cell as compared to the fresh coconut oil spectrum filter.

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