Progress in Polymer Science, Год журнала: 2023, Номер 143, С. 101711 - 101711
Опубликована: Июнь 25, 2023
Язык: Английский
Progress in Polymer Science, Год журнала: 2023, Номер 143, С. 101711 - 101711
Опубликована: Июнь 25, 2023
Язык: Английский
Chemical Reviews, Год журнала: 2022, Номер 122(18), С. 14180 - 14274
Опубликована: Авг. 5, 2022
Organic photovoltaics (OPVs) have progressed steadily through three stages of photoactive materials development: (i) use poly(3-hexylthiophene) and fullerene-based acceptors (FAs) for optimizing bulk heterojunctions; (ii) development new donors to better match with FAs; (iii) non-fullerene (NFAs). The application NFAs an A–D–A configuration (where A = acceptor D donor) has enabled devices efficient charge generation small energy losses (Eloss < 0.6 eV), resulting in substantially higher power conversion efficiencies (PCEs) than FA-based devices. discovery Y6-type (Y6 2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]-thiadiazolo[3,4-e]-thieno[2″,3″:4′,5′]thieno-[2′,3′:4,5]pyrrolo-[3,2-g]thieno-[2′,3′:4,5]thieno-[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile) A–DA′ D–A further propelled the PCEs go beyond 15% due smaller Eloss values (∼0.5 eV) external quantum efficiencies. Subsequently, Y6-series single-junction increased >19% may soon approach 20%. This review provides update recent progress OPV following aspects: developments novel donors, understanding structure–property relationships underlying mechanisms state-of-the-art OPVs, tasks underpinning commercialization such as device stability, module development, potential applications, high-throughput manufacturing. Finally, outlook prospects section summarizes remaining challenges technology.
Язык: Английский
Процитировано
678Science China Chemistry, Год журнала: 2021, Номер 65(2), С. 224 - 268
Опубликована: Дек. 27, 2021
Язык: Английский
Процитировано
511Joule, Год журнала: 2021, Номер 5(6), С. 1548 - 1565
Опубликована: Апрель 23, 2021
Язык: Английский
Процитировано
343Journal of the American Chemical Society, Год журнала: 2021, Номер 143(7), С. 2665 - 2670
Опубликована: Фев. 10, 2021
Despite the significant progresses made in all-polymer solar cells (all-PSCs) recently, relatively low short-circuit current density (Jsc) and large energy loss are still quite difficult to overcome for further development. To address these challenges, we developed a new class of narrow-bandgap polymer acceptors incorporating benzotriazole (BTz)-core fused-ring segment, named PZT series. Compared commonly used benzothiadiazole (BT)-containing PYT, less electron-deficient BTz renders derivatives with significantly red-shifted optical absorption up-shifted levels, leading simultaneously improved Jsc open-circuit voltage resultant all-PSCs. More importantly, regioregular (PZT-γ) has been achieve higher regiospecificity avoiding formation isomers during polymerization. Benefiting from more extended absorption, better backbone ordering, optimal blend morphology donor component, PZT-γ-based all-PSCs exhibit record-high power conversion efficiency 15.8% greatly enhanced 24.7 mA/cm2 0.51 eV.
Язык: Английский
Процитировано
292Nature Energy, Год журнала: 2022, Номер 7(12), С. 1180 - 1190
Опубликована: Ноя. 10, 2022
Язык: Английский
Процитировано
277Joule, Год журнала: 2021, Номер 5(4), С. 914 - 930
Опубликована: Март 7, 2021
Язык: Английский
Процитировано
266Nature Communications, Год журнала: 2021, Номер 12(1)
Опубликована: Сен. 6, 2021
Abstract All-polymer solar cells (all-PSCs) based on polymerized small molecular acceptors (PSMAs) have made significant progress recently. Here, we synthesize two A-DA’D-A molecule acceptor PSMAs of PS-Se with benzo[c][1,2,5]thiadiazole A’-core and PN-Se benzotriazole A’-core, for the studies effect structure photovoltaic performance PSMAs. The possess broad absorption showing more red-shifted than suitable electronic energy levels application as polymer in all-PSCs PBDB-T donor. Cryogenic transmission electron microscopy visualizes aggregation behavior donor PSMA their solutions. In addition, a bicontinuous-interpenetrating network PBDB-T:PN-Se blend film size 10~20 nm is clearly observed by photoinduced force microscopy. desirable morphology active layer leads its all-PSC higher power conversion efficiency 16.16%.
Язык: Английский
Процитировано
220Advanced Materials, Год журнала: 2022, Номер 34(27)
Опубликована: Март 22, 2022
State-of-art Y-series polymer acceptors are typically based on a mono-thiophene linker, which can cause some twisted molecular conformations and thus limit the performance of all-polymer solar cells (all-PSCs). Here, high-performance acceptor vinylene linkers is reported, leads to surprising changes in polymers' conformations, optoelectronic properties, enhanced photovoltaic performance. It found that thiophene or bithiophene (PY-T-γ PY-2T-γ) display significant twisting between end-groups linker units, while vinylene-based (PY-V-γ) exhibits more coplanar rigid conformation. As result, PY-V-γ demonstrates better conjugation tighter interchain stacking, results higher mobility reduced energetic disorder. Furthermore, detailed morphology investigations reveal PY-V-γ-based blend high domain purity fill factor its all-PSCs. With these, efficiency 17.1% achieved all-PSCs, highest reported for binary all-PSCs date. This work vinylene-linker superior unit build with chain conformation, beneficial aggregation efficient
Язык: Английский
Процитировано
205Angewandte Chemie International Edition, Год журнала: 2021, Номер 60(18), С. 10137 - 10146
Опубликована: Янв. 27, 2021
Abstract Polymerization sites of small molecule acceptors (SMAs) play vital roles in determining device performance all‐polymer solar cells (all‐PSCs). Different from our recent work about fluoro‐ and bromo‐ co‐modified end group IC‐FBr (a mixture IC‐FBr1 IC‐FBr2), this paper, we synthesized purified two regiospecific substituted groups (IC‐FBr‐ o & IC‐FBr‐ m ), which were then employed to construct regio‐regular polymer named PYF‐T‐ , respectively . In comparison with its isomeric counterparts different conjugated coupling sites, exhibits stronger bathochromic absorption achieve better photon harvesting. Meanwhile, adopts more ordered inter‐chain packing suitable phase separation after blending the donor PM6, resulted suppressed charge recombination efficient transport. Strikingly, observed a dramatic difference between While devices based on PM6:PYF‐T‐ can yield power conversion efficiency (PCE) 15.2 %, only show poor efficiencies 1.4 %. This demonstrates success configuration‐unique fluorinated designing high‐performance regular acceptors, provides guidelines towards developing all‐PSCs efficiencies.
Язык: Английский
Процитировано
193ChemSusChem, Год журнала: 2021, Номер 14(17), С. 3569 - 3578
Опубликована: Апрель 30, 2021
Abstract Self‐assembled monolayers (SAMs) based on Br‐2PACz ([2‐(3,6‐dibromo‐9 H ‐carbazol‐9‐yl)ethyl]phosphonic acid) 2PACz ([2‐(9H‐Carbazol‐9‐yl)ethyl]phosphonic and MeO‐2PACz ([2‐(3,6‐dimethoxy‐9H‐carbazol‐9‐yl)ethyl]phosphonic molecules were investigated as hole‐extracting interlayers in organic photovoltaics (OPVs). The highest occupied molecular orbital (HOMO) energies of these SAMs measured at −6.01 −5.30 eV for MeO‐2PACz, respectively, found to induce significant changes the work function (WF) indium‐tin‐oxide (ITO) electrodes upon chemical functionalization. OPV cells PM6 (poly[(2,6‐(4,8‐bis(5‐(2‐ethylhexyl‐3‐fluoro)thiophen‐2‐yl)‐benzo[1,2‐b:4,5‐b’]dithiophene))‐alt‐(5,5‐(1’,3’‐di‐2‐thienyl‐5’,7’‐bis(2‐ethylhexyl)benzo[1’,2’‐c:4’,5’‐c’]dithiophene‐4,8‐dione)]) : BTP‐eC9 PC 71 BM ([6,6]‐phenyl‐C71‐butyric acid methyl ester) using ITO/Br‐2PACz anodes exhibited a maximum power conversion efficiency (PCE) 18.4 %, outperforming devices with ITO/MeO‐2PACz (14.5 %) ITO/poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT PSS) (17.5 %). higher PCE was originate from much WF (−5.81 eV) compared (4.58 ITO/PEDOT PSS (4.9 eV), resulting lower interface resistance, improved hole transport/extraction, trap‐assisted recombination, longer carrier lifetimes. Importantly, electrode chemically stable, after removal SAM it could be recycled reused construct fresh OPVs equally impressive performance.
Язык: Английский
Процитировано
188