Abstract: Photoactive compounds are disclosed. The disclosed photoactive compounds include metal complexes with dipyrromethene-based ligands, which can be substituted with a variety of different side chains or groups or can include various fused ring configurations, such as including aromatic or heteroaromatic groups. The metal complexes may include two dipyrromethene-based ligands, which can be the same or different. The photoactive compounds can be used as photoactive materials in organic photovoltaic devices, such as visibly transparent or opaque photovoltaic devices.

Abstract: Organic photovoltaic devices with compound charge transport layers are described herein. One such device includes a substrate, a first electrode coupled to the substrate, a second electrode disposed above the first electrode, and photoactive layers disposed between the first electrode and the second electrode. The device further includes a compound charge transport layer disposed between the photoactive layers and either the first electrode or the second electrode. The compound charge transport layer includes a charge transport layer and a metal-oxide interlayer disposed between the charge transport layer and the photoactive layers. The charge transport layer may be a hole transport layer or an electron transport layer.

Abstract: Photovoltaic devices having photoactive layers coupled to buffer layers are disclosed. Such devices may be transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices may include a p-phenylene layer that acts as a buffer layer. The photovoltaic devices may include one or more photoactive layers. The one or more photoactive layers may include a single planar heterojunction, a single bulk heterojunction (BHJ), or multiple stacked BHJs that have complementary absorption characteristics, among other possibilities.

Abstract: Photovoltaic devices having photoactive layers coupled to buffer layers are disclosed. Such devices may be transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices may include a p-phenylene layer that acts as a buffer layer. The photovoltaic devices may include one or more photoactive layers. The one or more photoactive layers may include a single planar heterojunction, a single bulk heterojunction (BHJ), or multiple stacked BHJs that have complementary absorption characteristics, among other possibilities.

Abstract: A transparent photovoltaic device includes a transparent substrate, a transparent bottom electrode coupled to the transparent substrate, an active layer coupled to the transparent bottom electrode, and a transparent multilayer top electrode. The transparent multilayer top electrode includes a seed layer deposited on the active layer, a first metal layer deposited on the seed layer, an interconnect layer deposited on the first metal layer, and a second metal layer deposited on the interconnect layer. The transparent photovoltaic device is characterized by an average visible transmission (AVT) greater than 25% and a top electrode sheet resistance that is less than 100 Ohm/sq.

Abstract: Photoactive compounds are disclosed. The disclosed compounds can include a structural motif of A-D-A, A-pi-D-A, or A-pi-D-pi-A, with A being an electron acceptor moiety, pi being a ?-bridging moiety, and D being an electron donor moiety comprising a fused heteroaromatic group. The disclosed photoactive compounds can be used in organic photovoltaic devices, such as visibly transparent or opaque photovoltaic devices.

Abstract: Photoactive compounds are disclosed. The disclosed photoactive compounds include metal complexes with dipyrromethene-based ligands, which can be substituted with a variety of different side chains or groups or can include various fused ring configurations, such as including aromatic or heteroaromatic groups. The metal complexes may include two dipyrromethene-based ligands, which can be the same or different. The photoactive compounds can be used as photoactive materials in organic photovoltaic devices, such as visibly transparent or opaque photovoltaic devices.

Abstract: Photoactive compounds are disclosed. The disclosed compounds can exhibit molecular structural elements tending to increase the evaporability of the compounds, such as by including geometric core disruption by use of conformationally restricted side groups instead of freely rotatable side groups or use of indandione moieties instead of dicyanomethyleneindanone moieties. The disclosed photoactive compounds include those with an imine-bridging linking moiety, which can shift the optical properties to a more red-shifted absorbance as compared to compounds with an alkene-bridging linking moiety. The disclosed photoactive compounds can be used in organic photovoltaic devices, such as visibly transparent or opaque photovoltaic devices.

Abstract: Photoactive compounds are disclosed. The disclosed compounds can exhibit molecular structural elements tending to increase the evaporability of the compounds, such as by including geometric core disruption by use of conformationally restricted side groups instead of freely rotatable side groups or use of indandione moieties instead of dicyanomethyleneindanone moieties. The disclosed photoactive compounds include those with an imine-bridging linking moiety, which can shift the optical properties to a more red-shifted absorbance as compared to compounds with an alkene-bridging linking moiety. The disclosed photoactive compounds can be used in organic photovoltaic devices, such as visibly transparent or opaque photovoltaic devices.

Abstract: Photoactive compounds are disclosed. The disclosed compounds can exhibit molecular structural elements tending to increase the evaporability of the compounds, such as by including geometric core disruption by use of conformationally restricted side groups instead of freely rotatable side groups or use of indandione moieties instead of dicyanomethyleneindanone moieties. The disclosed photoactive compounds include those with an imine-bridging linking moiety, which can shift the optical properties to a more red-shifted absorbance as compared to compounds with an alkene-bridging linking moiety. The disclosed photoactive compounds can be used in organic photovoltaic devices, such as visibly transparent or opaque photovoltaic devices.

Abstract: An insulated glass unit (IGU) characterized by a transmitted IGU color (a*IGU;b*IGU) includes a photovoltaic structure characterized by a first transmitted color (a*1;b*1) and a low emissivity structure characterized by a second transmitted color (a*2;b*2). The first transmitted color and the second transmitted color are complementary.

Abstract: A visibly transparent photovoltaic device includes a visibly transparent substrate, a first visibly transparent electrode on the visibly transparent substrate, a second electrode, a visibly transparent photoactive layer between the first visibly transparent electrode and the second electrode and configured to convert at least one of near-infrared light or ultraviolet light into photocurrent, and a near-infrared absorbing material layer configured to absorb the near-infrared light and transmit visible light.

Abstract: Organic photovoltaic devices with compound charge transport layers are described herein. One such device includes a substrate, a first electrode coupled to the substrate, a second electrode disposed above the first electrode, and photoactive layers disposed between the first electrode and the second electrode. The device further includes a compound charge transport layer disposed between the photoactive layers and either the first electrode or the second electrode. The compound charge transport layer includes a charge transport layer and a metal-oxide interlayer disposed between the charge transport layer and the photoactive layers. The charge transport layer may be a hole transport layer or an electron transport layer.

Abstract: Disclosed herein are visibly transparent photovoltaic devices, such as color-neutral visibly transparent photovoltaic devices. A color-neutral visibly transparent photovoltaic device includes a visibly transparent substrate and a first visibly transparent electrode coupled to the visibly transparent substrate. The device also includes a second visibly transparent electrode and a visibly transparent photoactive layer between the first visibly transparent electrode and the second visibly transparent electrode. The visibly transparent photoactive layer is configured to convert at least one of NIR light or UV light into photocurrent and is characterized by an absorption spectrum with a peak in the NIR or UV spectrum. The device further includes a visibly absorbing material characterized by a second absorption spectrum with a second peak in the visible spectrum, where the second absorption spectrum is complementary to the absorption spectrum.

Abstract: Visibly transparent photovoltaic devices having bulk heterojunctions (BHJ) are disclosed. Such devices are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices may include bottom and top visibly transparent electrodes, as well as multiple stacked BHJ active layers that have complementary absorption characteristics. For example, a first BHJ active layer may have an absorption spectrum that is complementary to an absorption spectrum of a second BHJ active layer.

Abstract: Photovoltaic devices having photoactive layers coupled to buffer layers are disclosed. Such devices may be transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices may include a p-phenylene layer that acts as a buffer layer. The photovoltaic devices may include one or more photoactive layers. The one or more photoactive layers may include a single planar heterojunction, a single bulk heterojunction (BHJ), or multiple stacked BHJs that have complementary absorption characteristics, among other possibilities.

Abstract: A transparent photovoltaic device includes a transparent substrate and a transparent bottom electrode coupled to the transparent substrate. The transparent photovoltaic device also includes an active layer coupled to the transparent bottom electrode and a transparent multilayer top electrode that includes a seed layer coupled to the active layer and a metal layer coupled to the seed layer. The transparent photovoltaic device is characterized by an average visible transmission (AVT) greater than 25% and a top electrode sheet resistance that is less than 100 Ohm/sq.