Lochtransportmaterialien für Perowskit‐Solarzellen

Calió, Laura; Kazim, Samrana; Grätzel, Michaël; Ahmad, Shahzada

doi:10.1002/ange.201601757

Cited by 81 publications

(36 citation statements)

References 136 publications

(145 reference statements)

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“…The calculated T g of TCP‐OH is 420 K, which agrees well with the experimental value of 431 K (See Figure ). By the same method, the T g of spiro‐OMeTAD is 413 K, which is also close to the corresponding experimental value (398 K) . The stability of amorphous state for TCP‐OH is comparable with that for spiro‐OMeTAD.…”

Section: Resultssupporting

confidence: 82%

Star‐Shaped Molecules as Dopant‐Free Hole Transporting Materials for Efficient Perovskite Solar Cells: Multiscale Simulation

Zhang

Heng

et al. 2018

The Chemical Record

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On the reported TCP‐OH (See Scheme 1), other two star‐shaped molecules are theoretically designed by replacement of side group of TCP‐OH by N,N‐di(4‐methoxyphenyl)aniline for TPAP‐OH and oxygen‐bridged triarylamine for TBOPP‐OH. The core group, phenol, is kept in three molecules. Their potential to be hole transport material in perovskite solar cells without dopants is evaluated by multiscale simulations. The properties of isolated molecules are estimated by the frontier molecular orbital, absorption spectrum, and hole mobility. After that, the HTM@CH3NH3PbI3 adsorbed system is studied to consider the influence of adsorption on HTM performance. Besides the primary judgment, the glass transition temperature is also simulated to determine the stability of amorphous film. Not only the chemical stability is evaluated but also the amorphous film stability is considered. The latter is almost neglected in previous theoretical studies to evaluate the properties of HTMs. The performance of a designed molecule is evaluated from both the isolated molecules and HTM@CH3NH3PbI3 adsorbed system including aforementioned items, which is favorable to build reliable structure‐property relationship.

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Section: Resultssupporting

confidence: 82%

Star‐Shaped Molecules as Dopant‐Free Hole Transporting Materials for Efficient Perovskite Solar Cells: Multiscale Simulation

Zhang

Heng

et al. 2018

The Chemical Record

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“…Recently, lots of new HTMs have been developed to replace conventional 2,2′,7,7′‐tetrakis( N , N ‐di‐ p ‐methoxyphenylamine)‐9,9′‐spirobifluorene (spiro‐OMeTAD). Among them, a number of simple arylamine‐based small‐molecular HTMs have been exploited by varying the π linker and connecting arylamine derivatives . Notably, thiophene or its derivatives have been widely used as the π linker .…”

Section: Introductionmentioning

confidence: 99%

Thiophene–Arylamine Hole‐Transporting Materials in Perovskite Solar Cells: Substitution Position Effect

et al. 2017

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Two facile thiophene–arylamine hole‐transporting materials, obtained by varying the substitution position of arylamine moieties on the thiophene π linker, are reported. The substitution position effect of two hole‐transporting materials on the performance of perovskite solar cells is further investigated theoretically and experimentally. The compound in which arylamine moieties are located on the 2,5‐substitution position of thiophene shows better conjunction than that with the 3,4‐substituent. When used as hole‐transporting materials in CH3NH3PbI3‐based solar cells, the 2,5‐substituent exhibits a power conversion efficiency (PCE) of 15.13 %, which is over 40 % higher than that of the 3,4‐substituent. Moreover, the PCE of 2,5‐substituent based device is comparable with that of 2,2′,7,7′‐tetrakis(N,N‐di‐p‐methoxyphenylamine)‐9,9′‐spirobifluorene (spiro‐OMeTAD).

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“…In addition, the properties of HTL, ETL and the interfaces between TCO, ETL, perovskite, HTL and black metal electrode also play key roles in the processes of photogenerated charge separation and transport, thus impacting on the device performance significantly. Therefore, many efforts have also been devoted to design, fabricate efficient ETL, HTL and optimize the corresponding interfaces in the PSCs . The interface engineering efforts have been instrumental in making the PSCs a shining star in the photovoltaic field .…”

Section: Device Architectures and Working Principlementioning

confidence: 99%

Material and Interface Engineering for High‐Performance Perovskite Solar Cells: A Personal Journey and Perspective

Qiu

Yang

2019

The Chemical Record

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Hybrid organic‐inorganic perovskite solar cells (PSCs) have become a shining star in the photovoltaic field due to their spectacular increase in power conversion efficiency (PCE) from 3.8 % to over 23 % in just few years, opening up the potential in addressing the important future energy and environment issues. The excellent photovoltaic performance can be attributed to the unique properties of the organometal halide perovskite materials, including high absorption coefficient, tunable bandgap, high defect tolerance, and excellent charge transport characteristics. The authors entered this field when pursuing research on dye‐sensitized solar cells (DSCs) by leveraging nanorods arrays for vectorial transport of the extracted electrons. Soon after, we and others realized that while the organometal halide perovskite materials have excellent intrinsic properties for solar cells, interface engineering is at least equally important in the development of high‐performance PSCs, which includes surface defect passivation, band alignment, and heterojunction formation. Herein, we will address this topic by presenting the historical development and recent progress on the interface engineering of PSCs primarily of our own group. This review is mainly focused on the material and interface design of the conventional n‐i‐p, inverted p‐i‐n and carbon electrode‐based structure devices from our own experience and perspective. Finally, the challenges and prospects of this area for future development will also be discussed.

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Lochtransportmaterialien für Perowskit‐Solarzellen

Cited by 81 publications

References 136 publications

Star‐Shaped Molecules as Dopant‐Free Hole Transporting Materials for Efficient Perovskite Solar Cells: Multiscale Simulation

Star‐Shaped Molecules as Dopant‐Free Hole Transporting Materials for Efficient Perovskite Solar Cells: Multiscale Simulation

Thiophene–Arylamine Hole‐Transporting Materials in Perovskite Solar Cells: Substitution Position Effect

Material and Interface Engineering for High‐Performance Perovskite Solar Cells: A Personal Journey and Perspective

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