On the Role of PTB7-Th:[70]PCBM Blend Concentration in ortho -Xylene on Polymer Solar-Cell Performance

2017 ◽  
Vol 5 (12) ◽  
pp. 2168-2174 ◽  
Author(s):  
Luigi Salamandra ◽  
Luca La Notte ◽  
Giorgia Paronesso ◽  
Gianpaolo Susanna ◽  
Lucio Cinà ◽  
...  
2015 ◽  
Vol 27 (10) ◽  
pp. 3726-3732 ◽  
Author(s):  
Tim Vangerven ◽  
Pieter Verstappen ◽  
Jeroen Drijkoningen ◽  
Wouter Dierckx ◽  
Scott Himmelberger ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Ting-Xiao Qin ◽  
En-Ming You ◽  
Mao-Xin Zhang ◽  
Peng Zheng ◽  
Xiao-Feng Huang ◽  
...  

AbstractOrganic–inorganic halide perovskites are emerging materials for photovoltaic applications with certified power conversion efficiencies (PCEs) over 25%. Generally, the microstructures of the perovskite materials are critical to the performances of PCEs. However, the role of the nanometer-sized grain boundaries (GBs) that universally existing in polycrystalline perovskite films could be benign or detrimental to solar cell performance, still remains controversial. Thus, nanometer-resolved quantification of charge carrier distribution to elucidate the role of GBs is highly desirable. Here, we employ correlative infrared-spectroscopic nanoimaging by the scattering-type scanning near-field optical microscopy with 20 nm spatial resolution and Kelvin probe force microscopy to quantify the density of electrons accumulated at the GBs in perovskite polycrystalline thin films. It is found that the electron accumulations are enhanced at the GBs and the electron density is increased from 6 × 1019 cm−3 in the dark to 8 × 1019 cm−3 under 10 min illumination with 532 nm light. Our results reveal that the electron accumulations are enhanced at the GBs especially under light illumination, featuring downward band bending toward the GBs, which would assist in electron-hole separation and thus be benign to the solar cell performance.


RSC Advances ◽  
2020 ◽  
Vol 10 (63) ◽  
pp. 38344-38350
Author(s):  
Kai Wang ◽  
Sheng Dong ◽  
Xudong Chen ◽  
Ping Zhou ◽  
Kai Zhang ◽  
...  

Ternary all-polymer solar cells are fabricated using an N2200 acceptor and two donor polymers (PF2 and PM2) with complementary absorption.


2015 ◽  
Vol 3 (6) ◽  
pp. 1319-1324 ◽  
Author(s):  
Sihui Li ◽  
Wenhua Li ◽  
Qian Liu ◽  
Hedi Wei ◽  
Enquan Jin ◽  
...  

The efficiency of PSCs has been greatly improved by spin-coating monodisperse Ag NPs on ITO substrates.


2013 ◽  
Vol 13 (7) ◽  
pp. 1344-1349 ◽  
Author(s):  
Ji Eun Lee ◽  
Seungkyu Ahn ◽  
Joo Hyung Park ◽  
Jinsu Yoo ◽  
Kyung Hoon Yoon ◽  
...  

2016 ◽  
Vol 49 (21) ◽  
pp. 8113-8125 ◽  
Author(s):  
Sandeep Sharma ◽  
Nagesh B. Kolhe ◽  
Vinay Gupta ◽  
Vishal Bharti ◽  
Abhishek Sharma ◽  
...  

2014 ◽  
Vol 2 (17) ◽  
pp. 6146-6152 ◽  
Author(s):  
Jonas Bergqvist ◽  
Camilla Lindqvist ◽  
Olof Bäcke ◽  
Zaifei Ma ◽  
Zheng Tang ◽  
...  

Nano Letters ◽  
2010 ◽  
Vol 10 (3) ◽  
pp. 1063-1069 ◽  
Author(s):  
Chris Groves ◽  
James C. Blakesley ◽  
Neil C. Greenham

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