An Electron‐Deficient Building Block Based on the B←N Unit: An Electron Acceptor for All‐Polymer Solar Cells

Dou, Chuandong; Long, Xinggui; Ding, Zicheng; Xie, Zhiyuan; Li, Jun; Wang, Lixiang

doi:10.1002/anie.201508482

Cited by 249 publications

(148 citation statements)

References 58 publications

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“…When blended with the polymer donor PTB7, the C24 acceptor achieved the best PCE performance of 3.38%. This result also indicated a novel strategy for the design of building blocks with B–N units for all‐PSCs . And straight after, the same group developed a novel nonfullerene polymer‐based acceptor C25, which was similar to the C24 acceptor except the thiophene unit was replaced by the selenophene unit.…”

Section: Nonfullerene Polymer‐based Acceptorsmentioning

confidence: 89%

Recent Advances in Nonfullerene Acceptors for Organic Solar Cells

Liu

Hou

et al. 2017

Macromol. Rapid Commun.

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Recently, research on nonfullerene acceptors in organic solar cells has gradually become a hot topic due to such superior characteristics of light absorption and energy-level-convenient manipulation, multiformity of the photoactive material structures, as well as the extensive area in production compared to the fullerene derivatives. However, the nonfullerene acceptors evolved slowly before 2012 and, as a matter of fact, the power conversion efficiency values could only bear 2.0%. Strikingly, nonfullerene acceptors have developed at a fast pace since 2013, with the best device performance of 13.1% now. In this review, recent research progress on nonfullerene acceptors, including small molecules and polymers, are sorted and summarized on the basis of the different characteristics.

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Section: Nonfullerene Polymer‐based Acceptorsmentioning

confidence: 89%

Recent Advances in Nonfullerene Acceptors for Organic Solar Cells

Liu

Hou

et al. 2017

Macromol. Rapid Commun.

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“…Therefore, proper E LUMO is required for polymer electron acceptors to ensure charge separation and to maximize V OC . According to our previous study on BNBP‐based polymer electron acceptors, the optimized E LUMO of polymer electron acceptors should be ≈−3.6 eV . However, for the state‐of‐the‐art polymer electron acceptors based on NDI unit, the E LUMO of are fixed to be ≈−3.85 eV and cannot be effectively tuned .…”

Section: Introductionmentioning

confidence: 99%

Polymer Electron Acceptors Based on Iso‐Naphthalene Diimide Unit with High LUMO Levels

Zhang

Han

et al. 2017

Macro Chemistry & Physics

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The lowest unoccupied molecular orbital (LUMO) energy level (ELUMO) is a key parameter for polymer electron acceptors of all‐polymer solar cells (all‐PSCs). The state‐of‐the‐art polymer electron acceptors based on 1,4,5,8‐naphthalenediimide (NDI) unit suffer from low‐lying ELUMO, which leads to low open‐circuit voltage (VOC) of all‐PSCs. In this manuscript, the authors use 1,2,5,6‐naphthalenediimide (iso‐NDI) unit to develop a series of polymer electron acceptors with high‐lying ELUMO. Their thermal, optical, electrochemical, and charge transporting properties are systematically investigated and their applications in all‐PSCs are explored. The polymer based on iso‐NDI unit and bithiophene unit exhibits the ELUMO of −3.50 eV, which is higher than that of the corresponding polymer based on NDI unit (ELUMO = −3.86 eV) by 0.36 eV. As a result, the all‐PSC devices exhibit VOC enhancement by 0.30 V. All‐PSC devices of these polymer electron acceptors with poly(3‐hexylthiophene) as the electron donor show the VOC of 0.90 V and power conversion efficiency of 0.27%. These results indicate that iso‐NDI unit is a promising building block to design polymer electron acceptors for all‐PSCs with high VOC.

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“…Solar cells based on conjugated polymers are an emerging technology that have received enormous research interest over the past two decades . Polymer solar cells employ organic semiconductor materials for PC.…”

Section: The Types Of Photo‐supercapacitorsmentioning

confidence: 99%

Recent Advances in Dual‐Functional Devices Integrating Solar Cells and Supercapacitors

Sun

Yan

2017

Solar RRL

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Although solar cell technology is an effective way to realize the utilization of solar energy, the output power of solar cells cannot be continuous and stable, due to the intermittent nature of the sunlight. Therefore, proper energy storage devices are generally required to store the generated energy of solar cells. Photo‐supercapacitor is a new energy device that combines the photoelectric conversion function of a solar cell with the energy storage capability of a supercapacitor. This dual‐functionality is the main reason why photo‐supercapacitors are receiving more and more interest for their potential applications in future portable and wearable devices. This review presents the development history and the representative research progress of various photo‐supercapacitors, as well as the problems and challenges that still need to be addressed for the construction of better photo‐supercapacitors. Finally, suggestions for future research directions and opportunities in this fascinating field are given.

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An Electron‐Deficient Building Block Based on the B←N Unit: An Electron Acceptor for All‐Polymer Solar Cells

Cited by 249 publications

References 58 publications

Recent Advances in Nonfullerene Acceptors for Organic Solar Cells

Recent Advances in Nonfullerene Acceptors for Organic Solar Cells

Polymer Electron Acceptors Based on Iso‐Naphthalene Diimide Unit with High LUMO Levels

Recent Advances in Dual‐Functional Devices Integrating Solar Cells and Supercapacitors

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