Synthesis and photovoltaic properties of donor–acceptor polymers incorporating a structurally-novel pyrrole-based imide-functionalized electron acceptor moiety

A Novel Donor-Acceptor-Acceptor-Acceptor Polymer Containing Benzodithiophene and Benzimidazole-Benzothiadiazole-Benzimidazole for PSCs

“…29,30 The HOMO and LUMO levels of PBDTBBB indicate that its HOMO energy level is deep enough to get reasonalble V oc and the LUMO level is positioned well above the LUMO level of the acceptor (PC 71 BM), which ensures the possibility of the efficient electron transfer from the polymer to PC 71 BM. 31,32 In this instance, the synthesized polymer PBDTBBB might be suitable for PSCs application. The HOMO and LUMO energy levels of PBDTBBB were included in Table 1.…”

Benzodithiophene-based polymers containing novel electron accepting selenophene-incorporated pyrrolo[3,4-c]pyrrole-1,3-dione units for highly efficient thin film transistors and polymer solar cells

“…To the stirred solution of compound 1 (3.50 g, 10.80 mmol), which was prepared using the reported procedure [18], in DMF (50 mL) was added N-bromosuccinimide (NBS) (4.10 g, 23.00 mmol) in one portion at RT. The solution was stirred for 1 h and poured into ice-water (150 mL).…”

“…In particular, TPDand DPP-based polymer has displayed impressive opto-electrical and photovoltaic properties [12][13][14][15][16][17]. In order to develop structurally new polymers for PSCs, we prepared an electron deficient pyrrole-based imide-functionalized pyrrolo [3,4-c]pyrrole-1,3-dione (DPPD) derivative and polymerized it with two different electron donating 2,5-bis(2-thienyl)-N-dodecylpyrrole (TPT) and dithieno [3,2-b:20,30-d]-N-(2-ethylhexyl) pyrrole (DTP) derivatives to explore the aptitude of DPPD units in PSCs [18]. The resulting pyrrole-based polymers showed a poor photovoltaic performance of 1.64% [18].…”

“…In order to develop structurally new polymers for PSCs, we prepared an electron deficient pyrrole-based imide-functionalized pyrrolo [3,4-c]pyrrole-1,3-dione (DPPD) derivative and polymerized it with two different electron donating 2,5-bis(2-thienyl)-N-dodecylpyrrole (TPT) and dithieno [3,2-b:20,30-d]-N-(2-ethylhexyl) pyrrole (DTP) derivatives to explore the aptitude of DPPD units in PSCs [18]. The resulting pyrrole-based polymers showed a poor photovoltaic performance of 1.64% [18]. We noted that the highly efficient TPD and DPP units also gave lower or similar photovoltaic performances when they were polymerized with DTP [19,20] but gave high energy converting polymers when they were polymerized with benzodithiophene (BDT) derivatives and the maximum PCE achieved was up to 8.5% in the single layer PSCs [12][13][14][15][16][17].…”

A low band gap n-type polymer based on dithienosilole and naphthalene diimide for all-polymer solar cells application

“…The basic requirements in application of OPVs include solubility, absorption, electronic energy levels, charge carrier mobility M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 2 and so on. In the past decases, numerous donor (p-type) polymers have been designed and synthesized for the application in OPVs [4][5][6]. In contrast, n-type organic materials that have been employed are mostly fullerene derivatives due to their good electron-accepting and transporting properties in the mixed films [3].…”