scholarly journals Perovskite Thin Film Solar Cells Based on Inorganic Hole Conducting Materials

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Pan-Pan Zhang ◽  
Zheng-Ji Zhou ◽  
Dong-Xing Kou ◽  
Si-Xin Wu
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Visible Region ◽  
Hole Transport ◽  
Thin Film Solar Cells ◽  
Photoelectric Properties

Organic-inorganic metal halide perovskites have recently shown great potential for application, due to their advantages of low-cost, excellent photoelectric properties and high power conversion efficiency. Perovskite-based thin film solar cells have achieved a power conversion efficiency (PCE) of up to 20%. Hole transport materials (HTMs) are one of the most important components of perovskite solar cells (PSCs), having functions of optimizing interface, adjusting the energy match, and helping to obtain higher PCE. Inorganic p-type semiconductors are alternative HTMs due to their chemical stability, higher mobility, high transparency in the visible region, and applicable valence band (VB) energy level. This review analyzed the advantages, disadvantages, and development prospects of several popular inorganic HTMs in PSCs.

scholarly journals Highly Reflective Dielectric Back Reflector for Improved Efficiency of Tandem Thin-Film Solar Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Chog Barugkin ◽  
Ulrich W. Paetzold ◽  
Kylie R. Catchpole ◽  
Angelika Basch ◽  
Reinhard Carius
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Crystalline Silicon ◽  
Power Conversion ◽  
Thin Film Solar Cells ◽  
Average Reflectance ◽  
Back Reflector ◽  
Ag Reflector

We report on the prototyping and development of a highly reflective dielectric back reflector for application in thin-film solar cells. The back reflector is fabricated by Snow Globe Coating (SGC), an innovative, simple, and cheap process to deposit a uniform layer of TiO2particles which shows remarkably high reflectance over a broad spectrum (average reflectance of 99% from 500 nm to 1100 nm). We apply the highly reflective back reflector to tandem thin-film silicon solar cells and compare its performance with conventional ZnO:Al/Ag reflector. By using SGC back reflector, an enhancement of 0.5 mA/cm2in external quantum efficiency of the bottom solar cell and an absolute value of 0.2% enhancement in overall power conversion efficiency are achieved. We also show that the increase in power conversion efficiency is due to the reduction of parasitic absorption at the back contact; that is, the use of the dielectric reflector avoids plasmonic losses at the reference ZnO:Al/Ag back reflector. The Snow Globe Coating process is compatible with other types of solar cells such as crystalline silicon, III–V, and organic photovoltaics. Due to its cost effectiveness, stability, and excellent reflectivity above a wavelength of 400 nm, it has high potential to be applied in industry.

scholarly journals Fabrication of Organolead Iodide Perovskite Solar Cells with Niobium-doped Titanium Dioxide as Compact Layer

2017 ◽  
Vol 27 (2) ◽  
pp. 121
Author(s):  
Nguyen Tran Thuat ◽  
Bui Bao Thoa ◽  
Nguyen Bao Tran ◽  
Nguyen Minh Tu ◽  
Nguyen Ngoc Minh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Niobium Doped

Organometal halide perovskite materials have shown high potential as light absorbers for photovoltaic applications. In this work, perovskite planar solar cells were fabricated on corning substrates with the structure as follows: the first layer made of tantalum-doped tin oxide as transparent contact material, followed by sputtering niobium-doped titanium oxide as the compact electron transport layer; covered with perovskite CH3NH3PbI3 as the light harvester by combination between spin-coating and dipping methods; CuSCN was evaporated as the hole transport layer; the final thin Al/Ag electrodes were deposited. This configuration is shortly described as Al/TTO/NTO/CH3NH3PbI3/CuSCN/Ag. Such heterojunctions are expected to be suitable for the development of efficient hybrid solar cells. The fabricated cells were measured under the air mass 1.5 illumination condition, showed the rectification effect and exhibited a power conversion efficiency of 0.007%, with a open circuit voltage of 53.2 mV, a short circuit current of 0.36 mA/cm2, and a form factor of 37%. The power conversion efficiency will be further optimized in near future.

scholarly journals Dopant-free molecular hole transport material that mediates a 20% power conversion efficiency in a perovskite solar cell

2019 ◽  
Vol 12 (12) ◽  
pp. 3502-3507 ◽  
Author(s):  
Yang Cao ◽  
Yunlong Li ◽  
Thomas Morrissey ◽  
Brian Lam ◽  
Brian O. Patrick ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Purity ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Hole Transport

Organic molecular hole-transport materials (HTMs) are appealing for the scalable manufacture of perovskite solar cells (PSCs) because they are easier to reproducibly prepare in high purity than polymeric and inorganic HTMs.

Nickel phthalocyanine as an excellent hole-transport material in inverted planar perovskite solar cells

2019 ◽  
Vol 55 (37) ◽  
pp. 5343-5346 ◽  
Author(s):  
Mustafa Haider ◽  
Chao Zhen ◽  
Tingting Wu ◽  
Jinbo Wu ◽  
Chunxu Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Nickel Phthalocyanine ◽  
Hole Transporting ◽  
Hole Transporting Material

Nickel phthalocyanine as a hole transporting material in inverted planar perovskite solar cells leads to a power conversion efficiency of 14.3%.

Highly efficient phenothiazine 5,5-dioxide-based hole transport materials for planar perovskite solar cells with a PCE exceeding 20%

2019 ◽  
Vol 7 (16) ◽  
pp. 9510-9516 ◽  
Author(s):  
Xingdong Ding ◽  
Cheng Chen ◽  
Linghao Sun ◽  
Hongping Li ◽  
Hong Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Building Block ◽  
Low Cost ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Highly Efficient ◽  
Block Based

Two novel highly efficient and low-cost phenothiazine 5,5-dioxide core building block based hole transport materials are reported, achieving a power conversion efficiency as high as 20.2%.

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