Conversion efficiency of resonant cavity enhanced narrow bandgap interband cascade photovoltaic cells

2020 ◽  
Vol 128 (21) ◽  
pp. 214502
Author(s):  
Wenxiang Huang ◽  
Rui Q. Yang
Keyword(s):  
Conversion Efficiency ◽  
Resonant Cavity ◽  
Photovoltaic Cells ◽  
Narrow Bandgap

scholarly journals High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenrong Jia ◽  
Shucheng Qin ◽  
Lei Meng ◽  
Qing Ma ◽  
Indunil Angunawela ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Device Structure ◽  
Narrow Bandgap

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

Research on Characteristics of the Photovoltaic Cells Integrated on Chip

2014 ◽  
Vol 525 ◽  
pp. 287-291
Author(s):  
Li Xian Xiao ◽  
Yong Tai He ◽  
Yue Hong Peng ◽  
Jin Hao Liu
Keyword(s):  
Conversion Efficiency ◽  
Doping Concentration ◽  
Photovoltaic Cells ◽  
Influence Factors ◽  
Device Layer ◽  
Fabrication Technology ◽  
Junction Depth ◽  
On Chip ◽  
Substrate Doping ◽  
Emitter Junction

The influence factors of Photovoltaic (PV) cells characteristics integrated on chip were analyzed based on the fabrication process and the structure of the PV cells and CMOS devices. The results show the substrate doping concentration, the emitter doping concentration, the emitter junction depth and the thickness of device layer directly determine the conversion efficiency, open voltage and the light-generated current of photovoltaic cells. In the emitter doping concentration range of 1×1019/cm3 to 1×1021/cm3 and the substrate doping concentration range of 1.0×1015/cm3 to 1.0×1017/cm3, the Photovoltaic cells have batter conversion characteristics. The PV cells were designed based on the analysis results in PC1D, and the conversion efficiency is 9.43%. The Photovoltaic cells and the CMOS devices have batter fabrication technology compatibility integrated on chip.

Effect of 8-hydroxy-quinolinato lithium thickness on the power conversion efficiency of polymer photovoltaic cells

2013 ◽  
Vol 62 (3) ◽  
pp. 490-495 ◽  
Author(s):  
Dal-Ho Kim ◽  
Ji-Heon Kim ◽  
Yeon-Hee Hwang ◽  
Jae-Woo Shin ◽  
Jea-Gun Park
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Photovoltaic Cells

Analysis of Parameters Limiting the Conversion Efficiency of a-Si:H Photovoltaic Cells

1981 ◽  
pp. 804-808
Author(s):  
L. Vieux-Rochaz ◽  
B. Diem ◽  
M. Jacquemond ◽  
G. Boucher ◽  
A. Chenevas-Paule
Keyword(s):  
Conversion Efficiency ◽  
Photovoltaic Cells

New poly(selenophene–thiophene) bearing π-conjugating spacers for polymer field-effect transistors and photovoltaic cells

2015 ◽  
Vol 6 (19) ◽  
pp. 3660-3670 ◽  
Author(s):  
Chi-Chou Chiu ◽  
Hung-Chin Wu ◽  
Chien Lu ◽  
Jung-Yao Chen ◽  
Wen-Chang Chen
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Power Conversion ◽  
Photovoltaic Cells ◽  
Field Effect Mobility ◽  
Photovoltaic Power ◽  
Optoelectronic Applications

Five new poly(selenophene–thiophene) were synthesized for polymer optoelectronic applications. The hole field effect mobility and polymer photovoltaic power conversion efficiency could be as high as 0.27 cm2 V−1 s−1 and 2.3 %, respectively.

A Novel Naphtho[1,2-c:5,6-c′]Bis([1,2,5]Thiadiazole)-Based Narrow-Bandgap π-Conjugated Polymer with Power Conversion Efficiency Over 10%

2016 ◽  
Vol 28 (44) ◽  
pp. 9811-9818 ◽  
Author(s):  
Yaocheng Jin ◽  
Zhiming Chen ◽  
Sheng Dong ◽  
Nannan Zheng ◽  
Lei Ying ◽  
...  
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Conjugated Polymer ◽  
Power Conversion ◽  
Narrow Bandgap

scholarly journals A narrow-bandgap benzobisthiadiazole derivative with high near-infrared photothermal conversion efficiency and robust photostability for cancer therapy

2015 ◽  
Vol 51 (20) ◽  
pp. 4223-4226 ◽  
Author(s):  
Shuo Huang ◽  
Ravi Kumar Kannadorai ◽  
Yuan Chen ◽  
Quan Liu ◽  
Mingfeng Wang
Keyword(s):  
Cancer Therapy ◽  
Cancer Cells ◽  
Conversion Efficiency ◽  
Near Infrared ◽  
Therapeutic Agent ◽  
Infrared Region ◽  
Strong Absorption ◽  
Agent Based ◽  
Narrow Bandgap ◽  
Near Infrared Region

A novel photothermal therapeutic agent based on a narrow-bandgap benzobisthiadiazole derivative shows strong absorption in the near-infrared region, high photothermal efficiency and robust photostability for treatment of cancer cells.

Impedance Spectroscopy Study of Organic Photovoltaic Cells with an Inkjet Printed Hole-Extracting Graphene Oxide Layer

2019 ◽  
Vol 955 ◽  
pp. 31-36
Author(s):  
Jan Pospisil ◽  
Alexander Kovalenko ◽  
Veronika Schmiedova ◽  
Oldrich Zmeskal ◽  
Martin Vala
Keyword(s):  
Graphene Oxide ◽  
Impedance Spectroscopy ◽  
Oxide Layer ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Reduced Form ◽  
Organic Photovoltaic Cells ◽  
Electron Blocking Layer

This paper deals with the study of light conversion efficiency of organic photovoltaic cells with an inkjet-printed graphene oxide layer. The graphene oxide is used in this experiment as a hole-extracting, electron blocking layer in bulk heterojunction organic solar cells based on DPP(TBFu)2:PC60BM blend. It is also studied the influence of the GO reduction (chemically, by UV radiation and by annealing) on the final efficiency of photovoltaic conversion. Power conversion efficiency and the transport of charge carriers are evaluated by measuring of current-voltage characteristics and mainly by impedance spectroscopy analysis. In this regard, using of graphene oxide and its reduced form showed negative influence on the device performance caused by an inefficient charge carrier collection at the short-circuit condition.

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