Boosting Solar Cell Performance via Centrally Localized Ag in Solution-Processed Cu(In,Ga)(S,Se)2 Thin Film Solar Cells

2020 ◽  
Vol 12 (32) ◽  
pp. 36082-36091 ◽  
Author(s):  
Byungwoo Kim ◽  
Gi Soon Park ◽  
Joo-Hyun Kim ◽  
Sang Yeun Park ◽  
Da-Seul Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Cell Performance ◽  
Thin Film Solar Cells ◽  
Solution Processed ◽  
Solar Cell Performance

Chemical Composition Dependence of Cu2ZnSnS4 Absorbers Fabricated by Sulfurization of Thermal Evaporated Metal Precursors and Solar Cell Performance

2015 ◽  
Vol 1738 ◽  
Author(s):  
Liyuan Zhang ◽  
Sreejith Karthikeyan ◽  
Mandip J. Sibakoti ◽  
Stephen A. Campbell
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Chemical Composition ◽  
Conversion Efficiency ◽  
Small Deviation ◽  
Short Circuit ◽  
Cell Performance ◽  
Czts Thin Film ◽  
Solar Cell Performance

ABSTRACTWe investigate the synthesis of kesterite Cu2ZnSnS4 (CZTS) thin films using thermal evaporation from copper, zinc and tin pellets and post-annealing in a sulfur atmosphere. The effects of chemical composition were studied both on the absorber layer properties and on the final solar cell performance. It is confirmed that CZTS thin film chemical composition affects the carrier concentration profile, which then influences the solar cell properties. Solar cells using a CZTS thin film with composition ratio Cu/(Zn+Sn) = 0.87, and Zn/Sn = 1.24 exhibited an open-circuit voltage of 483 mV, a short-circuit current of 14.54 mA/cm2, a fill factor of 37.66 % and a conversion efficiency of 2.64 %. Only a small deviation from the optimal chemical composition can drop device performance to a lower level, which confirms that the CZTS solar cells with high conversion efficiency existed in a relatively narrow composition region.

First-principles Study of Back Contact Effects on CdTe Thin Film Solar Cells

2010 ◽  
Vol 1268 ◽  
Author(s):  
Mao-Hua Du
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
First Principles ◽  
Cell Performance ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Cdte Thin Film ◽  
Solar Cell Performance ◽  
Cdte Solar Cells ◽  
P Type

AbstractForming a chemically stable low-resistance back contact for CdTe thin film solar cells is critically important to the cell performance. This paper reports theoretical study of the effects of the back contact material, Sb2Te3, on the performance of the CdTe solar cells. First-principles calculations show that Sb impurities in p-type CdTe are donors and can diffuse with low diffusion barrier. There properties are clearly detrimental to the solar cell performance. The Sb segregation into the grain boundaries may be required to explain the good efficiencies for the CdTe solar cells with Sb2Te3 back contacts.

scholarly journals A push–pull organic semiconductor with efficient intramolecular charge transfer for solution-processed small molecule solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3435-3442 ◽  
Author(s):  
Yu Jin Kim ◽  
Gi Back Lee ◽  
Chan Woo Jeon ◽  
Yun-Hi Kim ◽  
Dae Sung Chung ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Solar Cell ◽  
Small Molecule ◽  
Organic Semiconductor ◽  
Intramolecular Charge Transfer ◽  
Cell Performance ◽  
Solution Processed ◽  
Solar Cell Performance

DMF-BP-T-MMN exhibits superior intramolecular charge transfer and excellent solar cell performance with a PCE of 3.40%.

Interface Engineering of Chalcogenide Semiconductors in Thin Film Solar Cells: CdTe as an Example

2001 ◽  
Vol 668 ◽  
Author(s):  
J. Fritsche ◽  
D. Kraft ◽  
A. Thissen ◽  
Th. Mayer ◽  
A. Klein ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Surface Science ◽  
Thin Film Solar Cells ◽  
Cdte Thin Film ◽  
Solar Cell Performance ◽  
Energy Diagram ◽  
Band Energy ◽  
As Doping

ABSTRACTIn this paper the electronic properties of the different interfaces of CdTe thin film solar cells will be analysed by using a surface science approach. Experimental basis for the experiments is an integrated UHV systems which allows to prepare and analyse real solar cells as well as appropriate model interfaces. Recently obtained data on the ITO surface, the ITO/SnO2/CdS front contact, the CdS/CdTe heterojunction and the CdTe/Te back contact will be presented. In addition, bulk properties as doping and lateral inhomogeneities will be addressed. For all these interfaces experimentally determined band energy diagrams will be given and discussed in relation to solar cell performance. Finally, the sum of the results will be used to propose a modified band energy diagram of the complete CdTe thin film solar cell and its implication for further cell improvement will be presented.

Optimisation of diketopyrrolopyrrole:fullerene solar cell performance through control of polymer molecular weight and thermal annealing

2014 ◽  
Vol 2 (45) ◽  
pp. 19282-19289 ◽  
Author(s):  
Zhenggang Huang ◽  
Elisa Collado Fregoso ◽  
Stoichko Dimitrov ◽  
Pabitra Shakya Tuladhar ◽  
Ying Woan Soon ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Solar Cells ◽  
Solar Cell ◽  
Thermal Annealing ◽  
Bulk Heterojunction ◽  
Cell Performance ◽  
Polymer Molecular Weight ◽  
Solar Cell Performance ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

The performance of bulk heterojunction solar cells based on a novel donor polymer DPP-TT-T was optimised by tuning molecular weight and thermal annealing.

A comparative study of solution-processed low- and high-band-gap chalcopyrite thin-film solar cells

2014 ◽  
Vol 47 (13) ◽  
pp. 135105 ◽  
Author(s):  
Se Jin Park ◽  
Yunae Cho ◽  
Sung Hwan Moon ◽  
Ji Eun Kim ◽  
Doh-Kwon Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Comparative Study ◽  
Band Gap ◽  
Thin Film Solar Cells ◽  
Solution Processed ◽  
High Band
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