Amidinium additives for high-performance perovskite solar cells

Author(s):  
Qi Chen ◽  
Yue Ma ◽  
Na Liu ◽  
Rundong Fan ◽  
Jiaqian Kang ◽  
...  

Perovskite solar cells (PSCs) have developed rapidly and achieved power conversion efficiencies (PCE) of over 25% with diverse technical routes. However, defect is a major factor for device degradation, so...

Author(s):  
Syed Ossama Ali Ahmad ◽  
Atif Ashfaq ◽  
Muhammad Usama Akbar ◽  
Mujtaba Ikram ◽  
Karim Khan ◽  
...  

Perovskite solar cells (per-SCs) with high performance and cost-effective solution processing have been the center of interest for researchers in the past decade. Power conversion efficiencies (PCEs) have been gradually...


Nanoscale ◽  
2021 ◽  
Author(s):  
Congcong Zhao ◽  
Jiuxing Wang ◽  
Xuanyi Zhao ◽  
Zhonglin Du ◽  
Renqiang Yang ◽  
...  

The past decade has seen a tremendous development of organic solar cells (OSCs). To date, the high-performance OSCs have boosted the power conversion efficiencies (PCEs) over 17%, showing bright prospects...


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Guiming Peng ◽  
Xueqing Xu ◽  
Gang Xu

The ramping solar energy to electricity conversion efficiencies of hybrid organic-inorganic perovskite solar cells during the last five years have opened new doors to low-cost solar energy. The record power conversion efficiency has climbed to 19.3% in August 2014 and then jumped to 20.1% in November. In this review, the main achievements for perovskite solar cells categorized from a viewpoint of device structure are overviewed. The challenges and prospects for future development of this field are also briefly presented.


2016 ◽  
Vol 4 (29) ◽  
pp. 11307-11316 ◽  
Author(s):  
Minwoo Park ◽  
Joon-Suh Park ◽  
Il Ki Han ◽  
Jin Young Oh

By incorporating long P3HT nanofibrils as a hole transporting layer, high-performance, air-stable and flexible perovskite solar cells with a large active area (1 cm2) have been realized with an excellent power conversion efficiency of 13.12%.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Md. Shahiduzzaman ◽  
Toshiharu Sakuma ◽  
Tetsuya Kaneko ◽  
Koji Tomita ◽  
Masao Isomura ◽  
...  

AbstractIn this study, a new, simple, and novel oblique electrostatic inkjet (OEI) technique is developed to deposit a titanium oxide (TiO2) compact layer (CL) on fluorine-doped tin oxide (FTO) substrate without the need for a vacuum environment for the first time. The TiO2 is used as electron transport layers (ETL) in planar perovskite solar cells (PSCs). This bottom-up OEI technique enables the control of the surface morphology and thickness of the TiO2 CL by simply manipulating the coating time. The OEI-fabricated TiO2 is characterized tested and the results are compared with that of TiO2 CLs produced by spin-coating and spray pyrolysis. The OEI-deposited TiO2 CL exhibits satisfactory surface coverage and smooth morphology, conducive for the ETLs in PSCs. The power-conversion efficiencies of PSCs with OEI-deposited TiO2 CL as the ETL were as high as 13.19%. Therefore, the present study provides an important advance in the effort to develop simple, low-cost, and easily scaled-up techniques. OEI may be a new candidate for depositing TiO2 CL ETLs for highly efficient planar PSCs, thus potentially contributing to future mass production.


RSC Advances ◽  
2019 ◽  
Vol 9 (59) ◽  
pp. 34152-34157 ◽  
Author(s):  
Junmei Cao ◽  
Fanning Meng ◽  
Liguo Gao ◽  
Shuzhang Yang ◽  
Yeling Yan ◽  
...  

The 2D Mxene material was successfully used as the counter electrode of the perovskite solar cell and achieved power conversion efficiencies of 13.84%.


2019 ◽  
Vol 01 (01) ◽  
pp. 030-037 ◽  
Author(s):  
Jianyun Zhang ◽  
Wenrui Liu ◽  
Shengjie Xu ◽  
Xiaozhang Zhu

Recently, by elaborately designing nonfullerene acceptors and selecting suitable polymer donors great progresses have been made towards binary organic solar cells (OSCs) with power conversion efficiencies (PCEs) over 15%. Ternary organic photovoltaics by introducing a third component into the host binary system is recognized to be highly effective to elevate the performance through extending the light absorption, manipulating the recombination behavior of the carriers, and improving the morphology of the active layer. In this work, we synthesized a new electron-acceptor ZITI-4F matching it with the wide-bandgap polymer donor PBDB-T The PBDB-T:ZITI-4F-based OSC showed a high PCE of 12.33%. After introducing 40% of PC71BM as the third component, the ternary device achieved an improved PCE of 13.40% with simultaneously improved photovoltaic parameters. The higher performance of the ternary device can be attributed to the improved and more balanced charge mobility, reduced bimolecular recombination, and more favorable morphology. These results indicate that the cooperation of a fullerene-based acceptor and a nonfullerene acceptor to fabricate ternary OSCs is an effective approach to optimizing morphology and therefore to increase the performance of OSCs.


2014 ◽  
Vol 2 (41) ◽  
pp. 17291-17296 ◽  
Author(s):  
Junghwan Kim ◽  
Geunjin Kim ◽  
Tae Kyun Kim ◽  
Sooncheol Kwon ◽  
Hyungcheol Back ◽  
...  

The importance of interfacial engineering as a new strategy for improving the power conversion efficiencies (PCEs) of planar-heterojunction (PHJ) perovskite solar cells is highlighted by incorporating sol–gel ZnO modified with PCBM.


2018 ◽  
Vol 6 (47) ◽  
pp. 24210-24215 ◽  
Author(s):  
Peiyao Xue ◽  
Yiqun Xiao ◽  
Tengfei Li ◽  
Shuixing Dai ◽  
Boyu Jia ◽  
...  

Panchromatic ternary organic solar cells with photoresponses beyond 1000 nm and power conversion efficiencies as high as 12.1% were fabricated using low-bandgap polymer PTB7-Th as a donor and ultra low-bandgap F8IC and mid-bandgap IDT-2BR as nonfullerene acceptors.


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