Octamethyl-substituted Pd(ii) phthalocyanine with long carrier lifetime as a dopant-free hole selective material for performance enhancement of perovskite solar cells

2017 ◽  
Vol 5 (46) ◽  
pp. 24416-24424 ◽  
Author(s):  
Xiaolu Zheng ◽  
Yulong Wang ◽  
Jiahua Hu ◽  
Guang Yang ◽  
Zhen Guo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carrier Lifetime ◽  
Performance Enhancement ◽  
Diffusion Length ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Free Hole ◽  
Phthalocyanine Derivative

Replacing copper with heavier palladium (Pd) endows the phthalocyanine derivative with a longer diffusion length and better photovoltaic performance.

A solution-processable copper(ii) phthalocyanine derivative as a dopant-free hole-transporting material for efficient and stable carbon counter electrode-based perovskite solar cells

2017 ◽  
Vol 5 (34) ◽  
pp. 17862-17866 ◽  
Author(s):  
Xiaoqing Jiang ◽  
Ze Yu ◽  
Hai-Bei Li ◽  
Yawei Zhao ◽  
Jishuang Qu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
Perovskite Solar Cells ◽  
Stable Carbon ◽  
Free Hole ◽  
Hole Transporting ◽  
Solution Processable ◽  
Phthalocyanine Derivative ◽  
Hole Transporting Material

A solution-processable copper(ii) phthalocyanine derivative CuPc-TIPS has been explored as a dopant-free hole-transporting material in carbon counter electrode-based perovskite solar cells.

scholarly journals Substituents interplay in piperidinyl-perylenediimide as dopant-free hole-selective layer for perovskite solar cells fabrication

2021 ◽  
Author(s):  
David Payno ◽  
Manuel Salado ◽  
Michael Andresini ◽  
David Gutiérrez-Moreno ◽  
Peng Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Performance Enhancement ◽  
Twist Angle ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Fine Tuning ◽  
Free Hole ◽  
Selective Layer ◽  
Energetic Level

AbstractThe charge selective layer is of significance for the fabrication of emerging photovoltaics, including perovskite-based solar cells. Molecular hole transport materials (HTMs) are being employed as charge transporters, owing to their synthetic molecular flexibility that allows the fine-tuning of their electro-optical properties. Typically, doping of HTMs is essential, but it is a trade-off between long-term durability and device performance. The energetic level of perylenediimides (PDIs) was altered by the position of the substituent. The substituent’s position influences the geometry of the PDI core, which can lose planarity, thus presenting a core twist angle between the two naphthalene subunits to find its application as hole-selective layers for fabrication. We have fabricated perovskite solar cells, with pristine PDI, and it gave a competitive performance. New design protocols for PDIs are required for aligned energetic levels, which will minimize recombination losses in solar cells, favoring a performance enhancement. Graphical abstract

scholarly journals 2D materials for conducting holes from grain boundaries in perovskite solar cells

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Peng You ◽  
Guanqi Tang ◽  
Jiupeng Cao ◽  
Dong Shen ◽  
Tsz-Wai Ng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Performance Enhancement ◽  
2D Materials ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Solution Process ◽  
High Mobility ◽  
Cost Effective ◽  
Hole Transport

AbstractGrain boundaries in organic–inorganic halide perovskite solar cells (PSCs) have been found to be detrimental to the photovoltaic performance of devices. Here, we develop a unique approach to overcome this problem by modifying the edges of perovskite grain boundaries with flakes of high-mobility two-dimensional (2D) materials via a convenient solution process. A synergistic effect between the 2D flakes and perovskite grain boundaries is observed for the first time, which can significantly enhance the performance of PSCs. We find that the 2D flakes can conduct holes from the grain boundaries to the hole transport layers in PSCs, thereby making hole channels in the grain boundaries of the devices. Hence, 2D flakes with high carrier mobilities and short distances to grain boundaries can induce a more pronounced performance enhancement of the devices. This work presents a cost-effective strategy for improving the performance of PSCs by using high-mobility 2D materials.

Photovoltaic Performance Enhancement of Perovskite Solar Cells Using Polyimide and Polyamic Acid as Additives

2019 ◽  
Vol 123 (39) ◽  
pp. 23826-23833 ◽  
Author(s):  
Yang-Yen Yu ◽  
Ching Tseng ◽  
Wei-Chen Chien ◽  
Hsiang-Lin Hsu ◽  
Chih-Ping Chen
Keyword(s):  
Solar Cells ◽  
Performance Enhancement ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Polyamic Acid

Interfacial engineering of self-assembled monolayer modified semi-roll-to-roll planar heterojunction perovskite solar cells on flexible substrates

2015 ◽  
Vol 3 (48) ◽  
pp. 24254-24260 ◽  
Author(s):  
Zhuowei Gu ◽  
Lijian Zuo ◽  
Thue T. Larsen-Olsen ◽  
Tao Ye ◽  
Gang Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Performance Enhancement ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Flexible Substrates ◽  
Self Assembled Monolayer ◽  
Interfacial Engineering ◽  
Roll To Roll ◽  
Self Assembled ◽  
Planar Heterojunction

A self-assembled monolayer is employed to modify the HTL in inverted perovskite solar cells, which results in significant photovoltaic performance enhancement, and can be applied on roll-to-roll fabricated flexible perovskite solar cells.

Correlating carrier lifetime with device design and photovoltaic performance of perovskite solar cells

2021 ◽  
Vol 119 (23) ◽  
pp. 232101
Author(s):  
Shiqiang Fu ◽  
Jiahao Wang ◽  
Like Huang ◽  
Xiaohui Liu ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carrier Lifetime ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Device Design

Enhancing the efficiency and stability of perovskite solar cells based on moisture-resistant dopant free hole transport materials by using 2D-BA2PbI4 interfacial layer

2021 ◽  
Author(s):  
Farzaneh S. Ghoreishi ◽  
Vahid Ahmadi ◽  
Maryam Alidaei ◽  
Farzaneh Arabpour Roghabadi ◽  
Mahmoud Samadpour ◽  
...  
Keyword(s):  
Solar Cells ◽  
Interfacial Layer ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Two Dimensional ◽  
Free Hole ◽  
Moisture Resistant

Herein, the photovoltaic performance and stability of perovskite solar cells (PSCs) based on the dopant-free hole transport layer (HTL) is efficiently improved by inserting a two-dimensional (2D) interfacial layer. The...

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