scholarly journals Quantum Dot Solar Cells: Small Beginnings Have Large Impacts

2018 ◽  
Vol 8 (10) ◽  
pp. 1867 ◽  
Author(s):  
Abiseka Ganesan ◽  
Arjan Houtepen ◽  
Ryan Crisp
Keyword(s):  
Solar Cells ◽  
Excited State ◽  
Ground State ◽  
Open Circuit Voltage ◽  
Optoelectronic Devices ◽  
Open Circuit ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Quantum Dot Solar Cells ◽  
Device Efficiency

From a niche field over 30 years ago, quantum dots (QDs) have developed into viable materials for many commercial optoelectronic devices. We discuss the advancements in Pb-based QD solar cells (QDSCs) from a viewpoint of the pathways an excited state can take when relaxing back to the ground state. Systematically understanding the fundamental processes occurring in QDs has led to improvements in solar cell efficiency from ~3% to over 13% in 8 years. We compile data from ~200 articles reporting functioning QDSCs to give an overview of the current limitations in the technology. We find that the open circuit voltage limits the device efficiency and propose some strategies for overcoming this limitation.

scholarly journals Junction Configuration Effects on the Photovoltaic Parameters of a-Si/CZTS Solar Cells

2022 ◽  
Author(s):  
H. Bitam ◽  
B. Hadjoudja ◽  
Beddiaf Zaidi ◽  
C. Shakher ◽  
S. Gagui ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Solar Cell ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Photovoltaic Devices ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Reported Study ◽  
Stated Problem

Due to increased energy intensive human activities resulting accelerated demand for electric power coupled with occurrence of natural disasters with increased frequency, intensity, and duration, it becomes essential to explore and advance renewable energy technology for sustainability of the society. Addressing the stated problem and providing a radical solution has been attempted in this study. To harvest the renewable energy, among variety of solar cells reported, a composite a-Si/CZTS photovoltaic devices has not yet been investigated. The calculated parameters for solar cell based on the new array of layers consisting of a-Si/CZTS are reported in this study. The variation of i) solar cell efficiency as a function of CZTS layer thickness, temperature, acceptor, and donor defect concentration; ii) variation of the open circuit current density as a function of temperature, open circuit voltage; iii) variation of open circuit voltage as a function of the thickness of the CZTS layer has been determined. There has been no reported study on a-Si/CZTS configuration-based solar cell, analysis of the parameters, and study to address the challenges imped efficiency of the photovoltaic device and the same has been discussed in this work. The value of the SnO2/a-Si/CZTS solar cells obtained from the simulation is 23.9 %.

scholarly journals CdTe-Based Thin Film Solar Cells: Past, Present and Future

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1684
Author(s):  
Alessandro Romeo ◽  
Elisa Artegiani
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Early Years ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

CdTe is a very robust and chemically stable material and for this reason its related solar cell thin film photovoltaic technology is now the only thin film technology in the first 10 top producers in the world. CdTe has an optimum band gap for the Schockley-Queisser limit and could deliver very high efficiencies as single junction device of more than 32%, with an open circuit voltage of 1 V and a short circuit current density exceeding 30 mA/cm2. CdTe solar cells were introduced at the beginning of the 70s and they have been studied and implemented particularly in the last 30 years. The strong improvement in efficiency in the last 5 years was obtained by a new redesign of the CdTe solar cell device reaching a single solar cell efficiency of 22.1% and a module efficiency of 19%. In this paper we describe the fabrication process following the history of the solar cell as it was developed in the early years up to the latest development and changes. Moreover the paper also presents future possible alternative absorbers and discusses the only apparently controversial environmental impacts of this fantastic technology.

Hybrid Quantum Dot/Organic Heterojunction: A Route to Improve Open-Circuit Voltage in PbS Colloidal Quantum Dot Solar Cells

2020 ◽  
Vol 5 (7) ◽  
pp. 2335-2342 ◽  
Author(s):  
Yannan Zhang ◽  
Yuanyuan Kan ◽  
Ke Gao ◽  
Mengfan Gu ◽  
Yao Shi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Quantum Dot Solar Cells ◽  
Colloidal Quantum Dot

scholarly journals Quantum‐Dot Solar Cells: Suppressing Interfacial Dipoles to Minimize Open‐Circuit Voltage Loss in Quantum Dot Photovoltaics (Adv. Energy Mater. 48/2019)

2019 ◽  
Vol 9 (48) ◽  
pp. 1970188
Author(s):  
Hunhee Lim ◽  
Donghun Kim ◽  
Min‐Jae Choi ◽  
Edward H. Sargent ◽  
Yeon Sik Jung ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Voltage Loss ◽  
Quantum Dot Solar Cells ◽  
Energy Mater

CuInSe2 Quantum Dot Solar Cells with High Open-Circuit Voltage

2013 ◽  
Vol 4 (12) ◽  
pp. 2030-2034 ◽  
Author(s):  
Matthew G. Panthani ◽  
C. Jackson Stolle ◽  
Dariya K. Reid ◽  
Dong Joon Rhee ◽  
Taylor B. Harvey ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Quantum Dot Solar Cells

scholarly journals High open-circuit voltage small-molecule p-DTS(FBTTh2)2:ICBA bulk heterojunction solar cells – morphology, excited-state dynamics, and photovoltaic performance

2015 ◽  
Vol 3 (4) ◽  
pp. 1530-1539 ◽  
Author(s):  
Aung Ko Ko Kyaw ◽  
Dominik Gehrig ◽  
Jie Zhang ◽  
Ye Huang ◽  
Guillermo C. Bazan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Excited State ◽  
Solar Cell ◽  
Small Molecule ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Open Circuit ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cell

A high VOC of 1V is achieved in the bulk heterojunction solar cell using the solution-processed small molecule donor p-DTS(FBTTh2)2 and indene-C60 bis-adduct acceptor.

Fabrication of InAs/GaAs quantum dot solar cells with enhanced photocurrent and without degradation of open circuit voltage

2010 ◽  
Vol 96 (20) ◽  
pp. 203507 ◽  
Author(s):  
Denis Guimard ◽  
Ryo Morihara ◽  
Damien Bordel ◽  
Katsuaki Tanabe ◽  
Yuki Wakayama ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Quantum Dot Solar Cells ◽  
Gaas Quantum Dot
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