Breaking the 10% Efficiency Barrier in Organic Photovoltaics: Morphology and Device Optimization of Well‐Known PBDTTT Polymers

Zhang, Shaoqing; Ye, Long; Hou, Jianhui

doi:10.1002/aenm.201502529

Cited by 292 publications

(222 citation statements)

References 194 publications

(331 reference statements)

Supporting

Mentioning

216

Contrasting

Unclassified

Order By: Relevance

“…Одним из наибо-лее перспективных направлений является разработка полимерных солнечных батарей, эффективность пре-образования энергии которых превысила 10% [1][2][3]. С учтом простоты и дешевизны производства таких батарей достигнутые значения эффективности делают их использование экономически целесообразным.…”

Section: Introductionunclassified

Исследование Структуры Объемного Гетероперехода В Полимерных Солнечных Элементах С Помощью Комбинации Ультрамикротомирования И Атомно-Силовой Микроскопии

Алексеев¹,

Ал-Афееф²,

Хедли³

et al. 2018

Физика И Техника Полупроводников

View full text Add to dashboard Cite

A method for visualization via atomic-force microscopy of the internal structure of photoactive layers of polymer solar cells using an ultramicrotome for photoactive layer cutting is proposed and applied. The method creates an opportunity to take advantage of atomic-force microscopy in structural investigations of the bulk of soft samples. Such advantages of atomic-force microscopy include a high contrast and the ability to measure various surface properties at nanometer resolution. Using the proposed method, samples of the photoactive layer of polymer solar cells based on a mixture of PTB7 polythiophene and PC_71BM fullerene derivatives are studied. The disclosed details of the bulk structure of this mixture allow us to draw additional conclusions about the effect of morphology on the efficiency of organic solar cells.

show abstract

Section: Introductionunclassified

Исследование Структуры Объемного Гетероперехода В Полимерных Солнечных Элементах С Помощью Комбинации Ультрамикротомирования И Атомно-Силовой Микроскопии

Алексеев¹,

Ал-Афееф²,

Хедли³

et al. 2018

Физика И Техника Полупроводников

View full text Add to dashboard Cite

show abstract

“…The bulk heterojunction (BHJ) polymer solar cell devices (PSCs) based on BDT-based copolymers have achieved high power conversion efficiency (PCE) values over 10% [8,[13][14][15]. In addition, in order to enhance the short-circuit current density in PSCs, molecular designs should be conducive to enhancing the absorption ability of the conjugated polymer.…”

Section: Introductionmentioning

confidence: 99%

“…Through rational molecular design, they will be tuned specifically to achieve desired optical and electronic properties for application in electronics and optoelectronics, such as field effect transistors (FETs) [1,2], photo-detectors [3], light-emitting diodes (LEDs) [4], and photovoltaics (PVs) [5,6]. Over the past several decades, many well-designed conjugated polymers have been used as photoactive materials in organic photovoltaic (OPV) devices owing to their excellent optoelectronic properties [7,8]. As a promising conjugated polymer in the OPV field, it should possess broad absorption in the solar spectrum, high charge carrier mobility for charge transport, suitable energy spectrum, high charge carrier mobility for charge transport, suitable energy levels, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Polymers 2016, 8,382 3 of 14 these three polymers, their optical, thermal, molecular energy levels, crystallographic, and photovoltaic properties were characterized carefully and systematically, making comparisons between each of them. The best PSCs based on PTTVBDT-TPD/PC61BM gave a PCE of 5.01% with monochromatic incident photon-to-electron conversion efficiency (IPCE) >60% over the range of 340-600 nm under AM 1.5G illumination with an intensity of 100 mW·cm −2 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Characterization of Two-Dimensional Conjugated Polymers Incorporating Electron-Deficient Moieties for Application in Organic Photovoltaics

et al. 2016

View full text Add to dashboard Cite

A series of novel p-type conjugated copolymers, PTTVBDT, PTTVBDT-TPD, and PTTVBDT-DPP, cooperating benzo[1,2-b:4,5-b ]dithiophene (BDT) and terthiophene-vinylene (TTV) units with/without thieno [3,4-c]pyrrole-4,6-dione (TPD) or pyrrolo [3,4-c]pyrrole-1,4-dione (DPP) via Stille polymerization were synthesized and characterized. Copolymer PTTVBDT shows a low-lying HOMO energy level and ordered molecular-packing behavior. Furthermore, two terpolymers, PTTVBDT-TPD and PTTVBDT-DPP, display stronger absorption ability, alower-lying HOMO energy level, and preferred molecular orientation, due to the replacement TTV-monomer units with electron-deficient groups. Furthermore, bulk-heterojunction organic solar cells were fabricated using blends of the PTTVBDT-TPD, and PC 61 BM gave the best power conversion efficiency of 5.01% under the illumination of AM 1.5G, 100 mW·cm −2 ; the short circuit current (J sc ) was 11.65 mA·cm −2 which displayed a 43.8% improvement in comparison with the PTTVBDT/PC 61 BM device. These results demonstrate a valid strategy combining the two-dimensional molecular structure with random copolymerization strikes promising conjugated polymers to achieve highly efficient organic photovoltaics.

show abstract

“…Since these humble beginnings, organic light emitting diodes (OLED) have become commercially available for lighting and are widely used for display applications [4,5]; organic photovoltaics (OPV) have achieved over 10% power efficiency [6,7] and both small molecule and polymer semiconductors have achieved over 1 cm 2 /Vs mobility [8]. The progress represented by these astonishing technological achievements in the use of organic materials for electronic applications has come about as a result of simultaneous major advances in organic materials synthesis, capabilities in organic materials characterisation, and the development of tools for organic materials modeling.…”

Section: Introductionmentioning

confidence: 99%

Modeling organic electronic materials: bridging length and time scales

Harrelson

Moulé

Faller

2017

Molecular Simulation

View full text Add to dashboard Cite

Organic electronics is a popular and rapidly growing field of research. The optical, electrical and mechanical properties of organic molecules and materials can be tailored using increasingly well controlled synthetic methods. The challenge and fascination with this field of research is derived from the fact that not only the chemical identity, but also the spatial arrangement of the molecules critically affects the performance of the material. Thus synthetic, fabrication, characterisation and computational scientists need to work closely to relate a materials performance in a device to the molecular details that cause and optimise that performance. For computational scientists in particular, the need to relate macroscopic device performance to details of molecular electronic structure brings challenges in methodology due to the need to bridge many orders of time and length scales. This article provides a survey of computational methods applied to multiple-length and time scale problems in organic electronic materials. Here we seek to highlight a few particular approaches that expand the simulation toolbox. ARTICLE HISTORY

show abstract

Breaking the 10% Efficiency Barrier in Organic Photovoltaics: Morphology and Device Optimization of Well‐Known PBDTTT Polymers

Cited by 292 publications

References 194 publications

Исследование Структуры Объемного Гетероперехода В Полимерных Солнечных Элементах С Помощью Комбинации Ультрамикротомирования И Атомно-Силовой Микроскопии

Исследование Структуры Объемного Гетероперехода В Полимерных Солнечных Элементах С Помощью Комбинации Ультрамикротомирования И Атомно-Силовой Микроскопии

Synthesis and Characterization of Two-Dimensional Conjugated Polymers Incorporating Electron-Deficient Moieties for Application in Organic Photovoltaics

Modeling organic electronic materials: bridging length and time scales

Contact Info

Product

Resources

About