Polymer solar cells with enhanced fill factors

Guo, Xugang; Zhou, Nan; Lou, Sylvia J.; Smith, Jeremy; Tice, Daniel B.; Hennek, Jonathan W.; Ortiz, Rocío Ponce; Navarrete, Juan T. López; Li, Shuyou; Strzalka, Joseph; Chen, Lin X.; Chang, Robert P. H.; Facchetti, Antonio; Marks, Tobin J.

doi:10.1038/nphoton.2013.207

Cited by 891 publications

(829 citation statements)

References 50 publications

Supporting

Mentioning

806

Contrasting

Order By: Relevance

“…Of various organic solar cells, polymer:fullerene solar cells have been extensively studied because of high power conversion efficiency (PCE) approaching ~12% via gradual advances in light-absorbing semiconducting polymers and fullerene derivatives [7][8][9][10][11][12][13] . In addition, polymer:fullerene solar cells can be manufactured by employing various wet-coating/printing technologies with continuous roll-to-roll processes at low temperatures, which may enable custom-designed plastic solar modules leading to wide spreading of solar cells in our daily life 3) .…”

Section: Introductionmentioning

confidence: 99%

Influence of Physical Load on the Stability of Organic Solar Cells with Polymer : Fullerene Bulk Heterojunction Nanolayers

Lee¹,

Kim²,

Kim³

2016

Current Photovoltaic Research

View full text Add to dashboard Cite

ABSTRACT:We report the effect of physical load on the stability of organic solar cells under physical loads. The active layers in organic solar cells were fabricated with bulk heterojunction films (BHJ) films of poly (3-hexylthiophene) and phenyl-C61-butyric methyl ester. The loading time was varied up to 60 s by keeping the physical load constant. Results showed that the open circuit voltage was not influenced by the physical load but other solar cell parameters were sensitive to the loading time. The fill factor was very slightly increased at 15 s, while short circuit current density was well kept for 30 s. The power conversion efficiency was reasonably maintained for 45 s but became significantly decreased by the continuous loading for 60 s.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Physical Load on the Stability of Organic Solar Cells with Polymer : Fullerene Bulk Heterojunction Nanolayers

Lee¹,

Kim²,

Kim³

2016

Current Photovoltaic Research

View full text Add to dashboard Cite

show abstract

“…The ll factors of organic solar cells are related to active layer morphology and charge carrier mobility. The low charge carrier mobility of organic semiconductors and the disordered lm morphology of solutionprocessed organic solar cells limit the sweepout of charge carriers, and result in low FFs [13,40]. The bandgaps and energy levels of frontier molecular orbitals (FMOs) of organic semiconductors are the primary consideration for designing high performance semi- conductors [1].…”

Section: Introductionmentioning

confidence: 99%

Naphthodithiophene-Based Semiconducting Materials for Applications in Organic Solar Cells

Wu¹,

Yang²,

Ong³

et al. 2014

Organic Photonics and Photovoltaics

Self Cite

View full text Add to dashboard Cite

“…[12][13][14][15] Therefore, interface engineering was widely applied to control the photoinduced charge transport processes at the heterointerface for improving the performance of photovoltaic devices. [16][17][18][19] Recently, we discovered an ipsilateral selective electron tunneling (ISET) mechanism, which can be used to effectively separate photoinduced electron-hole pair at the heterointerface.…”

mentioning

confidence: 99%

High‐Efficiency Photovoltaic Conversion at Selective Electron Tunneling Heterointerfaces

Jia

Guan

et al. 2017

Adv Elect Materials

View full text Add to dashboard Cite

particular, highly efficient photogenerated electron-hole pair separation, transport, and collection at the heterointerface are the key to achieve high photon-to-current conversion efficiency for photovoltaic devices. [12][13][14][15] Therefore, interface engineering was widely applied to control the photoinduced charge transport processes at the heterointerface for improving the performance of photovoltaic devices. [16][17][18][19] Recently, we discovered an ipsilateral selective electron tunneling (ISET) mechanism, which can be used to effectively separate photoinduced electron-hole pair at the heterointerface. [20,21] Specifically, when photoactive materials are assembled on the outside surface of single-layer graphene (SLG)/TiO 2 , Schottky diode, photoexcited electrons, as well as holes produced from the photoactive materials transport along the same direction to SLG, whereas only electron can further inject into the TiO 2 layer, thus realizing photogenerated electron-hole pair separation at the Schottky interface. With acridine orange (AO) dye as a model photoactive material, ≈86.8% photocarriers separation/collection efficiency was realized at the AO/SLG/ TiO 2 interface. Therefore, such an ISET effect at the heterointerface has great potential to be applied for efficient photovoltaic conversion.Due to a highly photoactive and unique amphiphilic structure, Z907 ruthenium molecules were widely used as the dye sensitizer in all-solid-state dye-sensitized solar cells. [22] In this work, Z907 molecules were chosen as the photoactive material to construct a Z907/SLG/TiO 2 ternary interface. As shown in Figure 1a, the photoexcited electrons in Z907 molecules are expected to tunnel across SLG and ballistically inject into the conductance band (CB) of the TiO 2 semiconductor layer, while photoexcited holes in Z907 molecules can only transport to the SLG semimetal layer. After that, the electron and hole are collected by the TiO 2 layer and the SLG layer, respectively, and further transport to the outside circuit for photoelectric conversion. Based on such an ISET mechanism, the electron transparency of the graphene layer is crucial for the high-efficiency photovoltaic conversion in ISET-based photovoltaic devices. Considering the fact that the electron transparency decreases with increasing the thickness of graphene, [23] single-layer graphene was chosen to construct the ISET-based heterointerface. With such an ISET-based heterointerface, we investigated the photoinduced carrier dynamic processes and photoelectric conversion performances at the heterointerface.Effectively controlling photoinduced charge transport at the heterointerface is of crucial importance for improving the performance of photovoltaic devices. On the basis of an ipsilateral selective electron tunneling (ISET) mechanism, here this study investigates photoinduced charge transport and photovoltaic conversion at a simplified dye/single-layer graphene (SLG)/TiO 2 ternary interface. With an amphiphilic Z907 molecule as the model dye, the photoexcit...

show abstract

Polymer solar cells with enhanced fill factors

Cited by 891 publications

References 50 publications

Influence of Physical Load on the Stability of Organic Solar Cells with Polymer : Fullerene Bulk Heterojunction Nanolayers

Influence of Physical Load on the Stability of Organic Solar Cells with Polymer : Fullerene Bulk Heterojunction Nanolayers

Naphthodithiophene-Based Semiconducting Materials for Applications in Organic Solar Cells

High‐Efficiency Photovoltaic Conversion at Selective Electron Tunneling Heterointerfaces

Contact Info

Product

Resources

About