Organic Monomolecular Layers Enable Energy-Level Matching for Efficient Hole Transporting Layer Free Inverted Perovskite Solar Cells

ACS Nano ◽  
2019 ◽  
Author(s):  
Weiguang Kong ◽  
Wang Li ◽  
Changwen Liu ◽  
Hui Liu ◽  
Jun Miao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Perovskite Solar Cells ◽  
Hole Transporting ◽  
Monomolecular Layers

Ladder-like conjugated polymers used as hole-transporting materials for high-efficiency perovskite solar cells

2019 ◽  
Vol 7 (24) ◽  
pp. 14473-14477 ◽  
Author(s):  
Liren Zhang ◽  
Jionghua Wu ◽  
Dongmei Li ◽  
Wenhua Li ◽  
Qingbo Meng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Conjugated Polymers ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Homo Energy ◽  
Hole Transporting ◽  
Hole Transporting Materials ◽  
Homo Energy Level

Intramolecular S–O interactions were adopted for designing HTMs with high hole mobility and a suitable HOMO energy level in PVSK.

Voltage output of efficient perovskite solar cells with high open-circuit voltage and fill factor

2014 ◽  
Vol 7 (8) ◽  
pp. 2614-2618 ◽  
Author(s):  
Seungchan Ryu ◽  
Jun Hong Noh ◽  
Nam Joong Jeon ◽  
Young Chan Kim ◽  
Woon Seok Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Solar Absorber ◽  
Voltage Output ◽  
Hole Transporting ◽  
Hole Transporting Materials

The voltage output of perovskite solar cells is found to be dependent on both the energy level of perovskite itself as a solar absorber and hole transporting materials.

Energy level tuning of TPB-based hole-transporting materials for highly efficient perovskite solar cells

2014 ◽  
Vol 50 (96) ◽  
pp. 15239-15242 ◽  
Author(s):  
Yakun Song ◽  
Songtao Lv ◽  
Xicheng Liu ◽  
Xianggao Li ◽  
Shirong Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Perovskite Solar Cells ◽  
Highly Efficient ◽  
Hole Transporting ◽  
Hole Transporting Materials

scholarly journals Effects of 5-Ammonium Valeric Acid Iodide as Additive on Methyl Ammonium Lead Iodide Perovskite Solar Cells

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2512
Author(s):  
Daming Zheng ◽  
Changheng Tong ◽  
Tao Zhu ◽  
Yaoguang Rong ◽  
Thierry Pauporté
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Single Crystal Silicon ◽  
Mesoporous Structure ◽  
Valeric Acid ◽  
Electrical Impedance Spectroscopy ◽  
Lead Iodide ◽  
Crystal Silicon ◽  
Time Resolved ◽  
Hole Transporting

During the past decade, the power conversion efficiency (PCE) of perovskite solar cells (PSCs) has risen rapidly, and it now approaches the record for single crystal silicon solar cells. However, these devices still suffer from a problem of stability. To improve PSC stability, two approaches have been notably developed: the use of additives and/or post-treatments that can strengthen perovskite structures and the use of a nontypical architecture where three mesoporous layers, including a porous carbon backcontact without hole transporting layer, are employed. This paper focuses on 5-ammonium valeric acid iodide (5-AVAI or AVA) as an additive in methylammonium lead iodide (MAPI). By combining scanning electron microscopy (SEM), X-ray diffraction (XRD), time-resolved photoluminescence (TRPL), current–voltage measurements, ideality factor determination, and in-depth electrical impedance spectroscopy (EIS) investigations on various layers stacks structures, we discriminated the effects of a mesoscopic scaffold and an AVA additive. The AVA additive was found to decrease the bulk defects in perovskite (PVK) and boost the PVK resistance to moisture. The triple mesoporous structure was detrimental for the defects, but it improved the stability against humidity. On standard architecture, the PCE is 16.9% with the AVA additive instead of 18.1% for the control. A high stability of TiO2/ZrO2/carbon/perovskite cells was found due to both AVA and the protection by the all-inorganic scaffold. These cells achieved a PCE of 14.4% in the present work.

scholarly journals Efficient and Stable Mesoscopic Perovskite Solar Cells Using a Dopant‐Free D–A Copolymer Hole‐Transporting Layer

Solar RRL ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 2000801
Author(s):  
Mohammad Mahdi Tavakoli ◽  
Riccardo Po ◽  
Gabriele Bianchi ◽  
Chiara Carbonera ◽  
Jing Kong
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transporting
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