Method of formulating perovskite solar cell materials
US-2020358436-A1 · Nov 12, 2020 · US
comprising a semiconductor electrode comprising elements of the fourth group of the Periodic Table with or without impurities, e.g. doping materials
comprising a semiconductor electrode comprising elements of the fourth group of the Periodic Table with or without impurities, e.g. doping materials · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01G9/2045 |
| Official title | {comprising a semiconductor electrode comprising elements of the fourth group of the Periodic Table with or without impurities, e.g. doping materials} |
| Display label | comprising a semiconductor electrode comprising elements of the fourth group of the Periodic Table with or without impurities, e.g. doping materials |
| Total patents | 86 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 16 |
| 2017 | 13 |
| 2018 | 9 |
| 2019 | 9 |
| 2020 | 9 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Graphene-semiconductor based wavelength selective photodetector for sub-bandgap photo detection
US-10755866-B2 · Aug 25, 2020 · US
Photocatalytic structure and method for making the same
US-2020238266-A1 · Jul 30, 2020 · US
Hybrid metal-graphene terahertz optoelectronic system with tunable plasmonic resonance and method of fabrication
US-10672933-B2 · Jun 2, 2020 · US
Oxygen generating electrode, oxygen generating electrode device, and photoelectric converter
US-2020111619-A1 · Apr 9, 2020 · US
Solar cell, manufacturing method therefor, semiconductor device, and manufacturing method therefor
US-10566144-B2 · Feb 18, 2020 · US
Perovskite and other solar cell materials
US-2020028099-A1 · Jan 23, 2020 · US
Silicon photoanode comprising a thin and uniform protective layer made of transition metal dichalcogenide and method of manufacturing same
US-2020002825-A1 · Jan 2, 2020 · US
Electrochemical UV Sensor Using Carbon Quantum Dots
US-2020006588-A1 · Jan 2, 2020 · US
Semiconductor device
US-2019384669-A1 · Dec 19, 2019 · US
Electrochemical reaction device
US-10483047-B2 · Nov 19, 2019 · US
Substituted lead halide perovskite intermediate band absorbers
US-10428100-B2 · Oct 1, 2019 · US
Method of forming semiconductor device including P-N diode
US-10403735-B2 · Sep 3, 2019 · US
Electrochemical reaction device
US-2019252128-A1 · Aug 15, 2019 · US
Transparent conductive film, photoelectrode for dye-sensitized solar cell, touch panel, and dye-sensitized solar cell
US-2019066933-A1 · Feb 28, 2019 · US
Method of storing electron hole pairs
US-10205208-B2 · Feb 12, 2019 · US
Self-assembly of perovskite for fabrication of transparent devices
US-10192689-B2 · Jan 29, 2019 · US
Perovskite and other solar cell materials
US-10193087-B2 · Jan 29, 2019 · US
Solar cell, manufacturing method therefor, semiconductor device, and manufacturing method therefor
US-2018374652-A1 · Dec 27, 2018 · US
Hybrid metal-graphene terahertz optoelectronic system with tunable plasmonic resonance and method of fabrication
US-2018315880-A1 · Nov 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01G9/2045?
- CPC H01G9/2045 is the Cooperative Patent Classification code for “comprising a semiconductor electrode comprising elements of the fourth group of the Periodic Table with or without impurities, e.g. doping materials.”
- How many patents are filed under CPC H01G9/2045 (comprising a semiconductor electrode comprising elements of the fourth group of the Periodic Table with or without impurities, e.g. doping materials)?
- Our database includes 86 publications tagged with this CPC code.
- Is patent activity under CPC H01G9/2045 growing?
- Publication counts under this code: 6 in 2024 vs 1 in 2025 (latest complete years).