Room-temperature processed hole-transport layer in flexible inverted perovskite solar cell module

The transparent photovoltaic NiO/TiO2 orderly nanoarray pn junction via synergism of AgInS2 quantum dots and Ti3+ self-doping

“…This indicates the presence of Ni in the Ni 2+ /Ni 3+ mixed state, and is also an important factor for inducing a holerelated carrier. [11][12][13][14] Moreover, the peaks at 367.55 and 373.56 eV are from the Ag + ions (Fig. 2(l)), the peaks at 444.37 and 451.90 eV are from the In 3+ ions (Fig.…”

“…S4b, ESI †) are 3.749(NiO) and 3.204(TiO 2 ) eV. [12][13][14][22][23][24] With reduction, the band gaps of Ti 3+ -TiO 2 exhibit a continuous decrease to 2.893 (Ti 3+ TiO 2 -1), 2.853 (Ti 3+ TiO 2 -2), 2.842 (Ti 3+ TiO 2 -3) and 2.831 (Ti 3+ TiO 2 -4) eV. [37][38][39] Such appropriate band gaps would be the main reason for these NiO/Ti 3+ -TiO 2 pn junctions to maintain good transparency after introducing of Ti 3+ /O v .…”

Phthalocyanines, porphyrins and other porphyrinoids as components of perovskite solar cells

“…1). 9,10 The main challenge regarding PSCs to reach the market is the loss of efficiency since it decreases under heat and light soaking due to ionic migration and segregation, 11 and because perovskite is very unstable against humidity due to its ionic nature. 12 In short, PSCs are not stable enough to rival the solar panels that dominate the market.…”

Enhanced photovoltaic output of bifacial perovskite solar cells via tailoring photoelectric balance in rear window layers with 1T-WS2 nanosheet engineering

“…1 To increase their efficiency and cost effectiveness for use in commercial applications, such as in tandem devices, flexible/wearable electronics, and PV-integrated roofs and windows, bifacial PSCs (b-PSCs) with a bidirectional PV output must be manufactured. [2][3][4] The key to achieve a bidirectional PV output from b-PSCs is to deposit a rear window layer (RWL) with high transparency, low resistivity, ideal photoelectric balance, and appropriate energy levels on the perovskite absorber. 4,5 For n-i-p b-PSCs, the RWL consists of a hole-transporting layer (HTL) and a rear electrode.…”