Cadmium selenide quantum dots solar cells featuring nickel sulfide/polyaniline as efficient counter electrode provide 4.15% efficiency

RSC Advances ◽  
2015 ◽  
Vol 5 (52) ◽  
pp. 42101-42108 ◽  
Author(s):  
Gentian Yue ◽  
Furui Tan ◽  
Jihuai Wu ◽  
Fumin Li ◽  
Jianming Lin ◽  
...  

Much higher photovoltaic performance of QDSSC with CdSe QDs and NiS/PANI counter electrode.

2020 ◽  
Vol 11 (5) ◽  
pp. 1018-1024 ◽  
Author(s):  
Yifan Zhu ◽  
Eilaf Egap

We report herein the first example of light-controlled radical reversible addition–fragmentation chain transfer polymerization facilitated by cadmium selenide quantum dots and the grafting-from CdSe QDs to create polymer-QDs nanocomposites.


Chemosensors ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 47 ◽  
Author(s):  
Jiang ◽  
Lu ◽  
Su ◽  
Feng ◽  
Zhou ◽  
...  

Cadmium selenide (CdSe) quantum dots (QDs) were synthesized by water phase synthesis method using 3-mercaptopropionic acid (3-MPA) as a stabilizer, and they were applied to the detection of copper ions (Cu2+). The results showed that CdSe QDs have excellent selectivity and sensitivity toward Cu2+. The fluorescence intensity of CdSe QDs decreased with the increase of Cu2+ concentration. The linear range was from 30 nM to 3 μM, and the detection limit was 30 nM. Furthermore, CdSe QDs were used for detecting the concentration of Cu2+ in oysters. The content of Cu2+ was 40.91 mg/kg, which was close to the one measured via flame atomic absorption spectrometry (FAAS), and the relative error was 1.81%. Therefore, CdSe QDs have a wide application prospect in the rapid detection of copper ions in food.


2014 ◽  
Vol 2 (43) ◽  
pp. 18375-18382 ◽  
Author(s):  
Camilla Lelii ◽  
Moungi G. Bawendi ◽  
Paolo Biagini ◽  
Po-Yen Chen ◽  
Marcello Crucianelli ◽  
...  

CdSe QDs of two different sizes have been combined with organic and organometallic sensitizers. The enhancement of the efficiency in QDDSSCs depends on the size of the QD and on the nature of the dye.


Solar Energy ◽  
2020 ◽  
Vol 209 ◽  
pp. 108-117 ◽  
Author(s):  
Jwaher M. AlGhamdi ◽  
Shorooq AlOmar ◽  
Mohammed A. Gondal ◽  
Redhwan Moqbel ◽  
Mohamed A. Dastageer

RSC Advances ◽  
2019 ◽  
Vol 9 (39) ◽  
pp. 22274-22281 ◽  
Author(s):  
Siva Bala Subramaniyan ◽  
Anbazhagan Veerappan

CdSe QDs fluorescence is highly selective and sensitive to mercury.


2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chi Zhang ◽  
Zhiyuan He ◽  
Xuanhui Luo ◽  
Rangwei Meng ◽  
Mengwei Chen ◽  
...  

AbstractIn this work, inorganic tin-doped perovskite quantum dots (PQDs) are incorporated into carbon-based perovskite solar cells (PSCs) to improve their photovoltaic performance. On the one hand, by controlling the content of Sn2+ doping, the energy level of the tin-doped PQDs can be adjusted, to realize optimized band alignment and enhanced separation of photogenerated electron–hole pairs. On the other hand, the incorporation of tin-doped PQDs provided with a relatively high acceptor concentration due to the self-p-type doping effect is able to reduce the width of the depletion region near the back surface of the perovskite, thereby enhancing the hole extraction. Particularly, after the addition of CsSn0.2Pb0.8I3 quantum dots (QDs), improvement of the power conversion efficiency (PCE) from 12.80 to 14.22% can be obtained, in comparison with the pristine device. Moreover, the experimental results are analyzed through the simulation of the one-dimensional perovskite/tin-doped PQDs heterojunction.


Sign in / Sign up

Export Citation Format

Share Document